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ra8-firmware 0.1.0
Bare-metal firmware for the Renesas RA8 family (RA8D2 / RA8P1)
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Samples ADC_B channel AN000 in 12-bit software-triggered mode, scales the raw code to millivolts against the board's 3.3 V VREFH, and logs each conversion over the J-Link OB console. LED1 is the heartbeat between samples.
Nothing on the EVM drives AN000 to a known voltage, so the reading is not ground truth. What this proves is that a software-triggered conversion starts, completes, and reads back.