修复iic总线无法连接问题

main/lis2dw12.c

@@ -91,17 +91,29 @@ void lis2dw12_init()
 {
     static uint8_t whoamI, rst;
     uint8_t tx_buffer[1000];
+    esp_err_t ret;
     ESP_LOGI(TAG, "LIS2DW12 Init");
 
     gpio_set_direction(I2C_MASTER_SCL_IO, GPIO_MODE_INPUT_OUTPUT_OD);
     gpio_set_direction(I2C_MASTER_SDA_IO, GPIO_MODE_INPUT_OUTPUT_OD);
     gpio_set_pull_mode(I2C_MASTER_SCL_IO, GPIO_PULLUP_ONLY);
     gpio_set_pull_mode(I2C_MASTER_SDA_IO, GPIO_PULLUP_ONLY);
-    vTaskDelay(pdMS_TO_TICKS(50));
+    vTaskDelay(pdMS_TO_TICKS(100));
         
     i2c_master_init(&s_bus_handle, &s_dev_handle);
     ESP_LOGI(TAG, "LIS2DW12 Init 2");
     vTaskDelay(pdMS_TO_TICKS(50));
+
+    while(1)
+    {
+        ret = i2c_master_probe(s_bus_handle, SLAVE_ADDR, 1000);
+        if(ret == ESP_OK){
+            ESP_LOGI(TAG, "IIC OK");
+            break;
+        }
+        vTaskDelay(pdMS_TO_TICKS(10));
+    }
+
     dev_ctx.handle = &s_dev_handle;
     dev_ctx.read_reg = lis2dw12_register_read;
     dev_ctx.write_reg = lis2dw12_register_write_byte;