update

app/src/app_event.h

@@ -1,8 +1,8 @@
 #pragma once
 #include <stdbool.h>
 #include <stdint.h>
+#include "board/board.h"
 
-#define LITTLE_DATA_BLOCK_FRAME_NUM 4  // 每四帧回调一次
 
 typedef enum {
   kevent_sensor_drop = 0,                  // 导联连接事件

app/src/board/board.h

@@ -60,8 +60,9 @@
 #define FILE_MAX_COUNT                       1
 #define SDCARD_MAX_FILE_SIZE                 (uint32_t)(3.5 * 1024 * 1024 * 1024)
 //
-#define SAMPLE_RATE      500
-#define SAMPLE_PRECISION 24
+#define SAMPLE_RATE                 400
+#define LITTLE_DATA_BLOCK_FRAME_NUM 4  // 每两帧回调一次,对应100HZ
+#define SAMPLE_PRECISION            24
 
 #define APP_MAX_EVEN_SIZE    MAX(APP_TIMER_SCHED_EVENT_DATA_SIZE, sizeof(app_event_t))
 #define APP_EVENT_QUEUE_SIZE 100

app/src/heart_wave_sample_service.c

@@ -75,7 +75,7 @@ volatile static bool m_drop_state_triggered = false;
  *******************************************************************************/
 
 // READY_PIN 中断回调函数
-//static void ads1293_ready_pin_irq(nrfx_gpiote_pin_t pin, nrf_gpiote_polarity_t action);
+// static void ads1293_ready_pin_irq(nrfx_gpiote_pin_t pin, nrf_gpiote_polarity_t action);
 // 缓冲区切换BUFFER
 static void prvf_buffer_switch(void);
 
@@ -326,7 +326,7 @@ void ads1293_sample_one_frame();
 void nrfx_timer_event_handler(nrf_timer_event_t event_type, void* p_context) {  //
   ads1293_sample_one_frame();
 }
-//static void ads1293_ready_pin_irq(nrfx_gpiote_pin_t pin, nrf_gpiote_polarity_t action) { ads1293_sample_one_frame(); }
+// static void ads1293_ready_pin_irq(nrfx_gpiote_pin_t pin, nrf_gpiote_polarity_t action) { ads1293_sample_one_frame(); }
 static void ads1293_sample_one_frame() {
   if (!m_work_flag) {
     return;
@@ -414,7 +414,11 @@ void hwss_init(void) {
   if (err != NRFX_SUCCESS) {
     NRF_LOG_ERROR("nrfx_timer_init failed with: %d\n", err);
   }
-  uint32_t timer_ticks = nrfx_timer_ms_to_ticks(&m_timer, 2);  // 500HZ
+
+  ZASSERT(SAMPLE_RATE == 400);
+  uint32_t timer_ticks = nrfx_timer_ms_to_ticks(&m_timer, 5);  // 200HZ
+  ZASSERT(timer_ticks % 2 == 0);                               //
+  timer_ticks = timer_ticks / 2;                               // 400HZ
   nrfx_timer_extended_compare(&m_timer, NRF_TIMER_CC_CHANNEL0, timer_ticks, NRF_TIMER_SHORT_COMPARE0_CLEAR_MASK, true);
 }