update

app/src/heart_wave_sample_service.c

@@ -9,12 +9,21 @@
 #include "nrf_drv_gpiote.h"
 #include "nrfx_timer.h"
 
-#define SENSOR0_ID             0
-#define SENSOR1_ID             3
-#define SENSOR2_ID             4
-#define FRAME_FILTER_INDEX_NUM 10  // 过滤帧数，每次启动采集后，过滤掉的帧数
+#define CHANNEL_NUM 2
+
+#define SENSOR0_ID 0
+#define SENSOR1_ID 3
+#define SENSOR2_ID 4
+
+#define SENSOR_LOD_ERROR_OFF_00 0
+#define SENSOR_LOD_ERROR_OFF_01 1
+#define SENSOR_LOD_ERROR_OFF_10 8
+#define SENSOR_LOD_ERROR_OFF_11 9
+#define SENSOR_LOD_ERROR_OFF_20 10
+#define SENSOR_LOD_ERROR_OFF_21 11
 
-#define GPIO_IRQ_TRIGGER_MODE 1
+#define FRAME_FILTER_INDEX_NUM 10  // 过滤帧数，每次启动采集后，过滤掉的帧数
+#define GPIO_IRQ_TRIGGER_MODE  1
 
 /*******************************************************************************
  *                                   STRUCT                                    *
@@ -280,6 +289,48 @@ void nrfx_timer_event_handler(nrf_timer_event_t event_type, void *p_context) {
 }
 #endif
 
+static void byte_set_bit(uint8_t *byte, uint8_t off, uint8_t val) {
+  if (val) {
+    *byte |= (1 << off);
+  } else {
+    *byte &= ~(1 << off);
+  }
+}
+static uint8_t byte16_get_bit(uint16_t byte, uint8_t off) { return (byte >> off) & 0x01; }
+
+static void update_lod_error() {
+  uint8_t  loderror0  = 0;
+  uint8_t  loderror1  = 0;
+  uint16_t loderror16 = 0;
+
+  loderror0 = ads1293_read_error_lod(&m_ads1293_0);
+#if CHANNEL_NUM == 2
+  loderror1 = ads1293_read_error_lod(&m_ads1293_1);
+#endif
+  loderror16 = (loderror1 << 8) | loderror0;
+
+  m_lodstate0 = 0;
+  m_lodstate1 = 0;
+
+  byte_set_bit(&m_lodstate0, 0, byte16_get_bit(loderror16, SENSOR_LOD_ERROR_OFF_00));
+  byte_set_bit(&m_lodstate0, 1, byte16_get_bit(loderror16, SENSOR_LOD_ERROR_OFF_01));
+  byte_set_bit(&m_lodstate0, 2, byte16_get_bit(loderror16, SENSOR_LOD_ERROR_OFF_10));
+  byte_set_bit(&m_lodstate0, 3, byte16_get_bit(loderror16, SENSOR_LOD_ERROR_OFF_11));
+  byte_set_bit(&m_lodstate0, 4, byte16_get_bit(loderror16, SENSOR_LOD_ERROR_OFF_20));
+  byte_set_bit(&m_lodstate0, 5, byte16_get_bit(loderror16, SENSOR_LOD_ERROR_OFF_21));
+
+  if (!m_drop_state_triggered) {
+    if (m_lodstate0 || m_lodstate1) {
+      m_drop_state_triggered = true;
+      pEventHelper_trigger_sensor_drop_event(m_lodstate0, m_lodstate1);
+    }
+  } else {
+    if (!(m_lodstate0 || m_lodstate1)) {
+      m_drop_state_triggered = false;
+    }
+  }
+}
+
 static void ads1293_init() {
   /*******************************************************************************
    *                                  SPI初始化                                  *
@@ -340,21 +391,9 @@ static void ads1293_sample_one_frame() {
 
   static uint32_t sample[6];
   ads1293_read_ecgs(&m_ads1293_0, &sample[0]);
+#if CHANNEL_NUM == 2
   ads1293_read_ecgs(&m_ads1293_1, &sample[3]);
-
-  m_lodstate0 = ads1293_read_error_lod(&m_ads1293_0);
-  m_lodstate1 = ads1293_read_error_lod(&m_ads1293_1);
-
-  if (!m_drop_state_triggered) {
-    if (m_lodstate0 || m_lodstate1) {
-      m_drop_state_triggered = true;
-      pEventHelper_trigger_sensor_drop_event(m_lodstate0, m_lodstate1);
-    }
-  } else {
-    if (!(m_lodstate0 || m_lodstate1)) {
-      m_drop_state_triggered = false;
-    }
-  }
+#endif
 
   static uint8_t cache[9];
   cache[0] = (sample[SENSOR0_ID] >> 0) & 0xff;
@@ -373,13 +412,14 @@ static void ads1293_sample_one_frame() {
    * @brief 缓存数据，并触发数据块事件
    */
   for (int i = 0; i < 9; i++) {
-    if (prvf_buffer_is_full()) {
+    if (pFrameBufferAB_is_full()) {
       pEventHelper_trigger_capture_data_block_event(m_frame_buffer, HEART_WAVE_SAMPLE_SERVICE_CACHE_SIZE);
       pFrameBufferAB_switch();
     }
     pFrameBufferAB_push_one_byte(cache[i]);
   }
 
+  update_lod_error();
   /**
    * @brief 缓存数据，并触发小数据块事件
    */
@@ -448,7 +488,9 @@ void hwss_start_capture(void) {
   {
     // 两通道同时开始采集
     nrf_gpio_pin_clear(ADS1293_SPI_CS0_PIN);
+#if CHANNEL_NUM == 2
     nrf_gpio_pin_clear(ADS1293_SPI_CS1_PIN);
+#endif
 
     uint8_t txcache[2];
     txcache[0] = ADS1293_WRITE_BIT & TI_ADS1293_CONFIG_REG;
@@ -456,7 +498,9 @@ void hwss_start_capture(void) {
     nrf_drv_spi_transfer(&spi, txcache, 2, NULL, 0);
 
     nrf_gpio_pin_set(ADS1293_SPI_CS0_PIN);
+#if CHANNEL_NUM == 2
     nrf_gpio_pin_set(ADS1293_SPI_CS1_PIN);
+#endif
   }
 
 #if GPIO_IRQ_TRIGGER_MODE
@@ -481,8 +525,11 @@ void hwss_stop_capture(void) {
 
   {
     // 两通道同时进入低功耗
+
     nrf_gpio_pin_clear(ADS1293_SPI_CS0_PIN);
+#if CHANNEL_NUM == 2
     nrf_gpio_pin_clear(ADS1293_SPI_CS1_PIN);
+#endif
 
     uint8_t txcache[2];
     txcache[0] = ADS1293_WRITE_BIT & TI_ADS1293_CONFIG_REG;
@@ -490,7 +537,9 @@ void hwss_stop_capture(void) {
     nrf_drv_spi_transfer(&spi, txcache, 2, NULL, 0);
 
     nrf_gpio_pin_set(ADS1293_SPI_CS0_PIN);
+#if CHANNEL_NUM == 2
     nrf_gpio_pin_set(ADS1293_SPI_CS1_PIN);
+#endif
   }
 }