main.c

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#include <stdint.h>
 
#include "ra8_acmphs.h"
#include "ra8_attributes.h"
#include "ra8_board_ek_ra8d2.h"
#include "ra8_boot_entry.h"
#include "ra8_cgc.h"
#include "ra8_err.h"
#include "ra8_isr.h"
#include "ra8_port_constants.h"
#include "ra8_time.h"

typedef enum : uint32_t {
  k_acmphs_demo_period_ms = 1000U, 
} acmphs_demo_const_t;

typedef enum : uint8_t {
  k_acmphs_demo_channel  = 0U, 
  k_acmphs_demo_ivpsel   = 0U, 
  k_acmphs_demo_ivrefsel = 0U, 
} acmphs_demo_chan_t;

volatile uint32_t g_acmphs_compare_tick = 0U;

RA8_INTERNAL static void internal_acmphs_demo_panic_halt(void)
{
  while (1) {
    __asm__ volatile("wfi");
  }
}

[[nodiscard]] RA8_INTERNAL static ra8_err_t internal_acmphs_demo_setup(void)
{
  uint32_t  cpuclk0_hz = 0U;
  ra8_err_t err        = ra8_cgc_init();
  if (err != k_ra8_ok) {
    return err;
  }
  err = ra8_cgc_get_clock_hz(k_ra8_clock_id_cpuclk0, &cpuclk0_hz);
  if (err != k_ra8_ok) {
    return err;
  }
  err = ra8_time_init(cpuclk0_hz);
  if (err != k_ra8_ok) {
    return err;
  }
  err = ra8_board_led_init(k_ra8_board_led1);
  if (err != k_ra8_ok) {
    return err;
  }
  err = ra8_board_led_init(k_ra8_board_led2);
  if (err != k_ra8_ok) {
    return err;
  }
  err = ra8_board_led_init(k_ra8_board_led3);
  if (err != k_ra8_ok) {
    return err;
  }
  err = ra8_acmphs_init();
  if (err != k_ra8_ok) {
    return err;
  }
  const ra8_acmphs_cfg_t cfg = {
    .ivpsel     = (uint8_t)k_acmphs_demo_ivpsel,
    .ivrefsel   = (uint8_t)k_acmphs_demo_ivrefsel,
    .edge       = k_ra8_acmphs_edge_none,
    .filter_en  = false,
    .invert_out = false,
  };
  return ra8_acmphs_channel_init((uint8_t)k_acmphs_demo_channel, &cfg);
}

[[nodiscard]] RA8_INTERNAL static ra8_err_t internal_acmphs_demo_one_iter(void)
{
  ra8_level_t     lv  = k_ra8_level_low;
  const ra8_err_t err = ra8_acmphs_read_output((uint8_t)k_acmphs_demo_channel, &lv);
  if (err != k_ra8_ok) {
    return err;
  }
  if (lv == k_ra8_level_high) {
    return ra8_board_led_toggle(k_ra8_board_led1);
  }
  return ra8_board_led_toggle(k_ra8_board_led2);
}
 
void main(void)
{
  if (internal_acmphs_demo_setup() != k_ra8_ok) {
    internal_acmphs_demo_panic_halt();
  }
  ra8_isr_globals_enable();
 
  while (1) {
    if (internal_acmphs_demo_one_iter() != k_ra8_ok) {
      (void)ra8_board_led_on(k_ra8_board_led3);
      break;
    }
    g_acmphs_compare_tick += 1U;
    ra8_delay_ms((uint32_t)k_acmphs_demo_period_ms);
  }
  internal_acmphs_demo_panic_halt();
}