The application entry point Reset_Handler hands control to.
Returns void, not int. This is a freestanding image: there is no hosted C environment, no process and nothing to report an exit status to. ISO C fixes main at int only for a hosted implementation; for a freestanding one (C23 5.1.2.1) the startup function's name and type are implementation-defined, and this is that definition. Reset_Handler discards no value because there is none to discard, and if main ever does return, startup halts the CPU rather than resuming anything.
The firmware lane is compiled -ffreestanding (see cmake/ra8_add_app.cmake) and the flag and this signature travel together: without it both GCC and clang reject a non-int main (-Wmain / -Wmain-return-type). Do not remove one without the other.
That coupling is why the declaration sits behind __STDC_HOSTED__ == 0, which -ffreestanding sets and a hosted build does not. The guard is not defensive dressing: this header is reachable from host builds (the unit tests compile ra8_core natively), and an unguarded void main(void); makes every hosted translation unit that includes it fail with conflicting types for 'main' against its own ISO int main. The declaration therefore exists exactly where its contract does.
Hosted first-party code – everything under tests/ and tools/ – uses the ISO int main(...) contract instead, because it genuinely does run under an OS that reads the exit status. scripts/checks/check_entry_points.py holds each domain to its own contract (#707).
Declared here, once, for the same reason SystemInit is: every vector_table.c used to restate it as a local extern int32_t main(void);, sixteen copies that no compiler ever compared against the definition – and roughly thirty of them had silently drifted out of agreement with the main they called.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has configured the clock tree and VTOR.
- Postcondition
- Control does not return; the image runs until reset or halt.
-
Any value the application wanted to report has been logged, not returned.
- Note
- Not thread-safe; single-threaded startup context only.
- Warning
- Only valid while the translation unit is compiled -ffreestanding. A hosted build rejects this signature.
- See also
- SystemInit()
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up CGC + BSP audio then plays blocks.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the playback loop forever.
-
On any HAL init failure the function halts in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up CGC + GPT triple, runs sweep.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the sweep loop forever.
-
On any HAL init failure the function halts in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up clocks + UART + RMII pins, then ThreadX.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
- Postcondition
- On clean entry the kernel runs the worker thread once.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up clocks + UART, then enters ThreadX.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the kernel runs the worker thread forever.
-
On any HAL init failure the function halts in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up LED, console, SDHI pins, then ThreadX.
- Precondition
- Reset_Handler has copied .data + zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- CPUCLK0 is raised to the PLL1 target before the kernel starts.
-
On clean entry the SD card thread runs forever.
-
On any HAL init failure the function halts in __WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up CGC + USB-FS + UAC1, then enters the iso-IN feed loop forever.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the iso-IN feed loop forever.
-
On any HAL init failure the function halts in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- SystemInit set VTOR / FPU / priority grouping.
The application entry point Reset_Handler hands control to.
See file header.
- Precondition
- Boot init has completed.
-
The secure-boot library's BLXNS into NS image either failed or was skipped (the call site in ra8_trustzone_init is a no-op on host builds).
- Postcondition
- Diagnostic counter latched, CPU parked in a halt loop.
-
Function never returns.
- Note
- Single-threaded entry.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- On success g_eoh_chapters / g_eoh_crc hold the parsed results, the banner is emitted, and g_eoh_heartbeat advances once per frame.
-
On any failure g_eoh_err is non-zero and the CPU parks (no heartbeat).
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The chapters/ch0-CRC banner is emitted; the CPU then loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- On success the g_etoc_* result globals hold the parsed TOC values, the banner is emitted, and g_etoc_heartbeat advances once per frame.
-
On any failure g_etoc_err is non-zero and the CPU parks (no heartbeat).
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss; SystemInit set VTOR/FPU.
- Postcondition
- The shelf scans on the panel; taps open books, browse, and read.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The slab/arena/tile/vmem banner is emitted; the CPU then loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- On success the cache globals are latched and g_pc_heartbeat advances.
-
On any failure g_pc_err is non-zero and the CPU parks (no heartbeat).
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Profiles power modes once a second.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the profile + blink loop.
-
On any HAL hard error LED2 latches ON.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
The shared board boot files installed the vector table.
- Postcondition
- The demo has run once and its verdict banner is streaming steadily.
-
The CPU idles re-emitting the banner (or halts after a fatal init error).
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up the clocks, console, SPI, and SD card, then runs the shared ra8_io VFS round-trip over the SD-over-SPI block device. On success it prints the exact PASS banner the HIL runner and ra8_emulator smoke gate scrape for; on any failure it prints FAIL and parks the core.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On a clean run the CPU loops forever after the PASS banner.
-
On any failure the function prints FAIL and halts in WFI.
- Note
- Not thread-safe; this is the single-threaded app entry.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Initialises logging and the console, brings up the OSPI NOR volume, runs the erase-before-write round-trip, and prints a single PASS/FAIL verdict line over SCI8 before parking in an infinite loop.
- Precondition
- SystemInit configured VTOR / FPU / priority grouping.
-
The OSPI NOR array is present (modelled in ra8_emulator, real on silicon).
- Postcondition
- Exactly one PASS or FAIL verdict line has been queued on SCI8.
-
Control parks in an infinite loop; the function never returns.
- Note
- Single-threaded; runs to the park loop on the main stack.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The page-count + render-hash banner is emitted; the CPU loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The cal=OK / cal=SKIP result and the finger-free touchcal: ready sentinel are emitted; the CPU then loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The open=OK touch banner is emitted; the CPU then loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Both USB controllers' clocks and pins come up before the kernel so the workers only deal with stack bring-up.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR, FPU, priority grouping.
- Postcondition
- On clean entry the CPU stays in tx_kernel_enter forever.
-
On any HAL init failure the function halts in WFI.
- Note
- Single entry point; not re-entrant.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up logging and the clock tree, releases the Cortex-M33 (which then blinks LED1 via ra8_pcntr_set_output()), and idles. See the file header.
- Precondition
- SystemInit has completed core bring-up.
-
The M33 is held in reset by hardware until released here.
- Postcondition
- The M33 has been released and is blinking LED1.
-
This function never returns to its caller.
- Note
- Single-threaded; no RTOS on the M85 in this template.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- The application links ra8_c6link and ESP-hosted generated codecs.
-
No hardware validation is inferred from this function.
- Postcondition
- No c6link operation is attempted.
-
No network or storage state is modified.
- Note
- Single-threaded compile fixture.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up logging, the clock tree, and the VCOM console, runs the cacheable-SRAM round-trip with the D-cache that SystemInit() enabled through ra8_cache_dcache_enable(), emits the matching PASS / FAIL banner over the console and ra8_log, then parks in WFI. Every byte the self-test touches runs with the L1 caches + MPU enabled by the shared boot (RA8_BOOT_ENABLE_CACHE_MPU + RA8_BOOT_CACHE_VIA_HAL).
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit enabled the MPU + I-cache + D-cache via the ra8_cache HAL.
- Postcondition
- Exactly one banner (PASS or FAIL) has been emitted.
-
The core is parked in WFI.
- Note
- Single-threaded; no RTOS and no IRQ sources in this template.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Publishes the mailbox, releases the Cortex-M33 into the emitter, yields until it signals done, validates the blob the M33 built, then logs the PASS/FAIL verdict and the chapter count read back from the blob. See the file header for the offload narrative.
- Precondition
- SystemInit has completed core bring-up.
-
The M33 is held inactive by hardware until released here.
- Postcondition
- The M33 has built a RABOOK1 blob and the M85 has validated it.
-
This function never returns to its caller.
- Note
- Single-threaded; no RTOS on the M85 in this example.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- On success the CPU heartbeats after epaper: PASS.
-
On any HAL error the console prints epaper: FAIL and the red LED latches on.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The chapters/toc/cover banner is emitted; CPU loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The reader loop runs forever, redrawing on each tap.
-
A page-1 banner is emitted once after the first render.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The cover-size / framebuffer-CRC banner is emitted; CPU loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The panel shows the reader screen and the input loop runs forever.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Publishes the mailbox, arms the IPC0 wake and configures the LPM block, releases the Cortex-M33 into the reader, waits for the first held page, logs the page-0 verdict, then runs the #150 mode-switch cycle – parking in low-power WFI and waking on the M33's page-turn pokes – before logging the handoff verdict and parking for good. See the file header for the narrative.
- Precondition
- SystemInit has completed core bring-up.
-
The M33 is held inactive by hardware until released here.
- Postcondition
- The M33 has rendered + re-rendered the held page and the M85 is parked.
-
This function never returns to its caller.
- Note
- Single-threaded; no RTOS on the M85 in this example.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The boot banner is emitted; the reader loop services taps forever.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up the timebase then measures forever.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the measure + blink loop forever.
-
On any HAL init failure the function halts in WFI.
- Note
- Never returns.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Arms the RIIC1 target and polls the dispatcher.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- The CPU stays in the dispatch poll loop forever.
-
On any fatal init error the CPU parks in riic_target_panic_halt.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On a clean run the PASS banner is printed and the CPU loops in WFI.
-
On any failure the function prints a FAIL line and halts.
- Note
- Not thread-safe; single-threaded app entry.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the read + print loop forever.
-
On any HAL hard error LED2 latches ON and the loop exits.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up the LIN commander then drives frames.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the LIN-frame + blink loop forever.
-
On any HAL init failure the function halts in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up logging, "renders" page 0 into the shared mailbox, releases the Cortex-M33 into its hold loop, and parks the M85 in low-power WFI sleep. See the file header for the power-saving narrative.
- Precondition
- SystemInit has completed core bring-up.
-
The M33 is held inactive by hardware until released here.
- Postcondition
- The M33 owns the held page and the M85 is parked.
-
This function never returns to its caller.
- Note
- Single-threaded; no RTOS on the M85 in this example.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
The USB clock, pins, console, and the SD card all come up before the kernel so the worker only deals with USB stack bring-up.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR, FPU, priority grouping.
- Postcondition
- On clean entry the CPU stays in tx_kernel_enter forever.
-
On any HAL init failure the function halts in WFI.
- Note
- Single entry point; not re-entrant.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit configured VTOR / FPU.
- Postcondition
- On clean bring-up the CPU stays in the poll loop.
-
On any HAL init failure the function halts in WFI.
- Note
- Single entry point; not re-entrant.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler initialized static storage.
-
SystemInit configured VTOR, FPU, and priority grouping.
- Postcondition
- The startup banner is printed once.
-
Control enters ThreadX and never returns normally.
- Note
- The #707 freestanding contract is declared by ra8_boot_entry.h.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On a clean run the PASS banner is printed and the CPU heartbeats forever.
-
On any failure LED2 latches ON and the CPU parks.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up logging, the clock tree, and the VCOM console, runs the three-step self-test (MPU enabled, canonical boot map, Device MMIO), emits the matching PASS / FAIL banner over the console and ra8_log, then parks in WFI.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit installed the boot map via ra8_mpu_apply_boot_map().
- Postcondition
- Exactly one banner (PASS or a step-specific FAIL) has been emitted.
-
The core is parked in WFI.
- Note
- Single-threaded; no RTOS and no IRQ sources in this template.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler initialised the C runtime; SystemInit ran.
-
The EK-RA8D2 J-Link OB VCOM console is attached for the banner.
- Postcondition
- The commit + rollback attempts have executed against extra-MRAM.
-
The verdict banner is emitted once per report cycle.
- Note
- Single entry point; not re-entrant.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Initialises logging + console, brings up the MRAM volume, runs the wear-levelling + power-cycle-survival flow, and prints a single PASS/FAIL verdict.
- Precondition
- SystemInit configured VTOR / FPU / priority grouping.
-
The extra-MRAM region is present (modelled in ra8_emulator, real on silicon).
- Postcondition
- Exactly one PASS or FAIL verdict line has been queued on SCI8.
-
Control parks in an infinite loop; the function never returns.
- Note
- Single-threaded; runs to the park loop on the main stack.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Initialises logging + console, brings up the MRAM volume, runs the program/erase round-trip, and prints a single PASS/FAIL verdict.
- Precondition
- SystemInit configured VTOR / FPU / priority grouping.
-
The extra-MRAM region is present (modelled in ra8_emulator, real on silicon).
- Postcondition
- Exactly one PASS or FAIL verdict line has been queued on SCI8.
-
Control parks in an infinite loop; the function never returns.
- Note
- Single-threaded; runs to the park loop on the main stack.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up the clocks, console, and SDHI bus pins, runs the native SD card identification, fills the payload, then runs the full ra8_io VFS round-trip over the native-SDHI block device. On success it prints the exact PASS banner the HIL runner and ra8_emulator smoke gate scrape for; on any failure it prints FAIL and parks the core.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On a clean run the CPU loops forever after the PASS banner.
-
On any failure the function prints FAIL and halts in WFI.
- Note
- Not thread-safe; this is the single-threaded app entry.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up the console and both stdio sinks, retargets the engine's stdio to the in-RAM capture sink, runs the two-backend swap, replays the RAM capture out of the UART, and prints a single PASS/FAIL verdict per abstraction before parking in an infinite loop.
- Precondition
- SystemInit configured VTOR / FPU / priority grouping.
-
The OSPI NOR array is present (modelled in ra8_emulator, real on silicon).
- Postcondition
- A PASS or FAIL verdict line has been queued on SCI8 for each abstraction.
-
Control parks in an infinite loop; the function never returns.
- Note
- Single-threaded; runs to the park loop on the main stack.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up the clocks, console, and SDHI bus pins, runs the native SD card identification, fills the payload, then writes + reads + compares one raw 512-byte block straight against ra8_sdcard. On success it prints the exact PASS banner; on any failure it prints FAIL and parks the core.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On a clean run the CPU loops forever after the PASS banner.
-
On any failure the function prints FAIL and halts in WFI.
- Note
- Not thread-safe; this is the single-threaded app entry.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The whoami PASS banner is emitted; the CPU then loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up clocks + UART + RMII + RSIP, then ThreadX.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
- Postcondition
- On clean entry the kernel runs the worker thread once.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, the FPU and the priority grouping.
- Postcondition
- The banner was printed exactly once.
-
Control passed to ThreadX and never came back.
- Note
- Everything after tx_kernel_enter happens on ThreadX; the panic-halt below is reached only if the kernel refuses to start.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, the FPU and the priority grouping.
- Postcondition
- The banner and the resolved pin map were printed exactly once.
-
Control passed to ThreadX and never came back.
- Note
- Everything after tx_kernel_enter happens on ThreadX; the panic-halt below is reached only if the kernel refuses to start.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, the FPU and priority grouping.
- Postcondition
- The probe ran exactly once and printed its verdict.
-
The CPU stays in a slow heartbeat loop afterwards.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, the FPU and the priority grouping.
- Postcondition
- The banner was printed exactly once.
-
Control passed to ThreadX and never came back.
- Note
- Everything after tx_kernel_enter runs on ThreadX; the panic-halt below is reached only if the kernel refuses to start.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Initializes and arms ADC_B, formats each successful channel sample without variadic I/O, emits the verdict, toggles LED1, and delays.
- Precondition
- Reset startup and SystemInit completed successfully.
-
The selected ADC channel matches the board analog connection.
- Postcondition
- Every PASS verdict follows a successful channel read.
-
Any read or LED failure leads to the terminal panic helper.
- Note
- Does not return during normal operation.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- On success the PASS banner is emitted; otherwise a FAIL line is.
-
The CPU parks in WFI (observable on ra8_emulator until its budget).
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up logging, releases the Cortex-M33 (which then blinks LED1), and idles. See the file header for the teaching narrative.
- Precondition
- SystemInit has completed core bring-up.
-
The M33 is held in reset by hardware until released here.
- Postcondition
- The M33 has been released and is blinking LED1.
-
This function never returns to its caller.
- Note
- Single-threaded; no RTOS on the M85 in this template.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The IDCODE/checks PASS banner is emitted; the CPU then loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
See the file header for the full behaviour summary.
- Precondition
- SystemInit has enabled the caches + MPU (this build defines RA8_BOOT_ENABLE_CACHE_MPU).
-
The M33 is held in reset by hardware until released here.
- Postcondition
- The M33 has been released and the round-trip loop is running.
-
This function never returns to its caller.
- Note
- Single-threaded; no RTOS on the M85 in this template.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up logging, the clock tree, and the VCOM console, runs the three-step self-test (cacheable SRAM, RO MRAM const, Device MMIO), emits the matching PASS / FAIL banner over the console and ra8_log, then parks in WFI. Every byte the self-test touches runs with the L1 caches and MPU enabled by the shared boot (RA8_BOOT_ENABLE_CACHE_MPU).
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit enabled the MPU + I-cache + D-cache (cache+MPU build).
- Postcondition
- Exactly one banner (PASS or a step-specific FAIL) has been emitted.
-
The core is parked in WFI.
- Note
- Single-threaded; no RTOS and no IRQ sources in this template.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR, FPU and priority grouping.
- Postcondition
- The verdict banner is on SCI8 and the CPU parks.
-
The result globals hold the outcome for SWD probing.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Lights HOCO + PLL, then runs a 1 Hz blink.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the toggle loop forever.
-
On any HAL init failure the function halts in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
See file header for behaviour summary.
- Precondition
- Boot init has completed.
-
CPU1 is held in reset.
- Postcondition
- CPU1 released and the ping-pong loop running.
-
Function never returns.
- Note
- Single-threaded entry.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR, FPU, priority grouping.
- Postcondition
- Control passes to the active app, or to the ThreadX-hosted DFU device.
-
On any HAL init failure the function halts in WFI.
- Note
- Single entry point; not re-entrant.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss; SystemInit ran.
-
The embedded image's first two words are a valid MSP + Thumb reset vector.
- Postcondition
- On success, control is at the image's reset vector in the SRAM run window.
-
On a failed run-target check, control parks in internal_dcr_panic_halt.
- Note
- Single entry point; not re-entrant.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR, FPU, priority grouping.
- Postcondition
- On clean entry the CPU stays in tx_kernel_enter forever.
-
On any HAL init failure the function halts in WFI.
- Note
- Single entry point; not re-entrant.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit enabled the MPU + caches via RA8_BOOT_ENABLE_CACHE_MPU.
- Postcondition
- Exactly one PASS/FAIL banner is emitted, then the core parks.
-
The core ends in WFI so ra8_emulator's idle-stop terminates the run.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Initializes the demo, executes one comparison per period, increments the exported match or mismatch counter, and toggles the matching LED.
- Precondition
- Reset startup and SystemInit completed successfully.
-
DOC and the status LEDs are not owned by another context.
- Postcondition
- Every iteration increments exactly one HIL result counter.
-
LED1 represents matches and LED2 represents failures or mismatches.
- Note
- Does not return during normal operation.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up the clock tree, MSTP, ISR/ELC, and the VCOM console, programs a software-triggered DTC block copy, runs it with the L1 caches + MPU enabled by the shared boot (RA8_BOOT_ENABLE_CACHE_MPU), emits the matching PASS / FAIL banner over the console and ra8_log, then parks in WFI.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit enabled the MPU + caches via RA8_BOOT_ENABLE_CACHE_MPU.
- Postcondition
- Exactly one PASS/FAIL banner is emitted, then the core parks.
-
The core ends in WFI so ra8_emulator's idle-stop terminates the run.
- Note
- Single-threaded; the completion IRQ is left masked and the result polled.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up logging, zeros the shared control block, releases the Cortex-M33, waits for its boot signature, then yields while the M33 counts autonomously to k_bg_target_count. After the M33 sets done, the M85 reads the counter and logs the PASS/FAIL verdict.
- Precondition
- SystemInit has completed core bring-up.
-
The M33 is held in reset by hardware until released here.
- Postcondition
- The M33 has autonomously incremented the counter and set done.
-
This function never returns to its caller.
- Note
- Single-threaded; no RTOS on the M85 in this example.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up logging, releases the Cortex-M33, confirms it booted, runs k_m85_demo_rounds narrated mailbox rounds, then drops into the idle heartbeat. See the file header for the teaching narrative.
- Precondition
- SystemInit has completed core bring-up.
-
The M33 is held in reset by hardware until released here.
- Postcondition
- The M33 has been released and the mailbox exchange is running.
-
This function never returns to its caller.
- Note
- Single-threaded; no RTOS on the M85 in this example.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Fires ELC software events once a second.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the trigger + blink loop.
-
On any HAL hard error LED2 latches ON.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The geometry-hash banner is emitted; the CPU then loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The framebuffer hash banner is emitted; the CPU then loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The bmp/gif framebuffer-CRC banner is emitted; CPU loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The hit-test / nav result banner is emitted; the CPU loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The nav-result banner is emitted; the CPU then loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The per-chapter page-count + render-hash banner is emitted; loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The svg-size / framebuffer-CRC banner is emitted; CPU loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On a clean run the CPU loops forever after the ALL PASS banner.
-
On any failure the function halts in WFI after a FAIL diagnostic.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The layer1=ok ... PASS banner is emitted on a programmed GLCDC, or FAIL glcdc on a bring-up failure; the CPU then loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Initializes the demo, tracks falling SW1 edges as counter deltas, and independently increments the exported liveness counter whenever successive GPT samples advance.
- Precondition
- Reset startup and SystemInit completed successfully.
-
The board wiring matches the EK-RA8D2 LED1 and SW1 definitions.
- Postcondition
- During operation, each detected edge toggles LED1.
-
A terminal control-flow escape parks the core in the panic helper.
- Note
- Does not return during normal operation.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Initializes the demo and GPT0, runs one bounded DMA request per iteration, updates the exported match/mismatch counter, and delays.
- Precondition
- Reset startup and SystemInit completed successfully.
-
GPT0 and the DMA allocator are not owned by another context.
- Postcondition
- Every iteration increments exactly one HIL result counter.
-
Allocated DMA channels are released by internal_run_one.
- Note
- Does not return during normal operation.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Initializes and arms GPT0 once, then starts, polls, records the exported pass/failure counters, toggles LED1 on completion, and delays before the next one-shot.
- Precondition
- Reset startup and SystemInit completed successfully.
-
GPT0 and LED1 are not owned by another execution context.
- Postcondition
- Each completed one-shot increments g_gpt_one_shot_match.
-
Each start or bounded-poll failure increments the mismatch counter.
- Note
- Does not return during normal operation.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up both controllers then scans each.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the scan + blink loop forever.
-
On any HAL hard error the CPU parks.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up CGC + IIC_B + console then probes.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the scan + blink loop forever.
-
On any HAL hard error LED2 latches ON and the loop exits.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The iic_b facade: up banner is emitted every period in the loop.
-
On any bring-up failure the CPU BKPT-halts before the loop.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Emits the boot banner, initializes the option-controlled IWDT, samples its counter, and on legal samples queues a refresh, clears status, toggles LED1, and emits the refresh banner.
- Precondition
- Reset startup and SystemInit completed successfully.
-
OFS0 contains the window policy represented by the demo constants.
- Postcondition
- Each reported refresh was requested only within the inclusive window.
-
Any HAL or output error leads to the terminal panic helper.
- Note
- Does not return during normal operation.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The query/commit banner is emitted; the CPU then loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Performs one Deep-Sleep cycle, emits the wake banner, then parks in a normal blink loop.
- MC/DC:
- Compound decision: enter_sleep != ok || any_sci_write != ok. Two atomic conditions x N+1 = 3 vectors – both-ok happy path, enter_sleep fails (covered by host test), sci_write fails (covered by host test).
- Precondition
- Reset_Handler / SystemInit completed normally.
-
LPM init has not yet been attempted.
- Postcondition
- On clean entry the chip emitted both banners and is parked in a normal blink loop, ready for the next bench flash.
-
On any HAL hard error LED1 latches OFF and the chip halts.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU and priority grouping.
- Postcondition
- The verdict banner is printed and remains the terminal UART line.
-
g_pdm_mic_result carries the validated capture result.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Initializes channel zero, formats and enqueues each counter line, toggles LED1, and delays before incrementing the next sample.
- Precondition
- Reset startup and SystemInit completed successfully.
-
J-Link may update only the consumer offset in the shared descriptor.
- Postcondition
- Each successful iteration advances the counter and toggles LED1.
-
Any producer or LED error leads to the terminal panic helper.
- Note
- Does not return during normal operation.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Bench-tests SDRAM and prints MB/s.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the bench + blink loop.
-
On read-back mismatch LED2 latches ON.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up SPI_B + loops a self-test pattern.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the loopback + blink loop.
-
On any HAL hard error LED2 latches ON.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Configures GPIO, then launches ThreadX.
- Precondition
- Reset_Handler has copied .data + zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- The two LED threads are running and SysTick is generating 1 ms ticks for the scheduler.
-
On any HAL init failure the function halts in __WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler completed .data/.bss init.
-
SystemInit set VTOR + FPU.
- Postcondition
- Two CANFD demo threads are running.
The application entry point Reset_Handler hands control to.
Brings up clocks + UART, then enters ThreadX.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
- Postcondition
- On clean entry the kernel runs the worker thread once.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up CGC + SCI8 then drops into the ThreadX scheduler.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On success the producer/consumer pair runs forever.
-
On any HAL bring-up failure the function halts in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler completed .data/.bss init.
- Postcondition
- MPU is enabled with the s_mpu_cfg partition table.
-
Worker thread is running and blinking LED1.
The application entry point Reset_Handler hands control to.
Brings up clocks + UART + RMII pins, then enters ThreadX.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
- Postcondition
- On clean entry the kernel runs the worker thread once.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Raises CPUCLK0, configures LED1, launches ThreadX.
- Precondition
- Reset_Handler has copied .data + zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- CPUCLK0 is at the PLL1 target before the kernel starts.
-
On any HAL init failure the function halts in __WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU loops forever after printing the result.
-
On any HAL init failure the function halts in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up CGC + SCI8 + LED1 then prints.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in the print + blink loop forever.
-
On any HAL init failure the function halts in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Brings up SCI8 + ISRs, prints, then echoes via IRQ.
- Precondition
- Reset_Handler has copied .data and zeroed .bss; SystemInit set VTOR/FPU.
- Postcondition
- On clean entry the CPU idles while the SCI ISRs echo received bytes.
-
On any HAL init failure the function halts in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Initializes and arms ULPT0, then polls its underflow bit. Each event emits the fixed wake banner, stops the channel to clear status, and starts the next interval with the same reload.
- Precondition
- Reset startup and SystemInit completed successfully.
-
The EK-RA8D2 console wiring matches the board definition.
- Postcondition
- Every reported wake corresponds to an observed underflow status bit.
-
Any HAL or output error leads to the terminal panic helper.
- Note
- Does not return during normal operation.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
Both USB controllers' clocks and pins come up before the kernel so the two workers only deal with stack bring-up.
- Precondition
- Reset_Handler has copied .data and zeroed .bss.
-
SystemInit has set VTOR, FPU, and priority grouping.
- Postcondition
- On clean entry the CPU stays in tx_kernel_enter forever.
-
On any HAL init failure the function halts in WFI.
- Note
- Single entry point; not re-entrant.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The apps/CRC/flush banner is emitted; CPU loops in WFI.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The PASS banner is emitted and the panel shows the Library app; the loop polls SW1/SW2 to switch apps live, otherwise idling.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The PASS banner is emitted and the panel shows the composed chrome; the loop partial-flushes only the status band so the panel updates its clock live (the damage-tracked path), otherwise idling.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The PASS banner is emitted and the panel shows the composed tree; the loop partial-flushes only the status band so the panel updates its top band live (the damage-tracked path), otherwise idling.
- Since
- 0.1.0
The application entry point Reset_Handler hands control to.
- Precondition
- Reset_Handler copied .data and zeroed .bss.
-
SystemInit set VTOR / FPU / priority grouping.
- Postcondition
- The PASS banner is emitted and the panel shows the composed widget kit; the loop alternately taps a button and partial-flushes the body band so the panel updates a button live (the damage-tracked path).
- Since
- 0.1.0
Definition at line 285 of file main.c.
References app_bringup_clocks(), app_bringup_display(), app_paint_bars(), display_clear(), display_flush(), display_full_rect(), k_app_frame_period_ms, k_app_powerup_ms, k_display_refresh_fast, k_display_refresh_init, k_display_refresh_quality, k_ra8_board_led_blue, ra8_board_led_toggle(), ra8_delay_ms(), s_caps, s_display, s_fb, and s_scroll_offset.
1.16.1