完善PGA设置：ADC通道改为CH6、添加PB4(PGA2_OUT)模拟模式、配置CHSMPR2采样时间

app/main.c

@@ -116,6 +116,9 @@ static void gpio_pin_init(void)
     cfg.port = GPIOB;
     cfg.pin = 3;
     gpio_init(&cfg);
+    cfg.port = GPIOB;
+    cfg.pin = 4;
+    gpio_init(&cfg);
 }
 
 static void uart_config_all(void)
@@ -210,7 +213,8 @@ int main(void)
 
     log_out("INFO: System initialized\n");
 
-    while (1) {
+    while (1)
+    {
         work_task_run();
         monitor_task_run();
 

drv/adc/adc_driver.c

@@ -10,7 +10,7 @@ ret_code_t adc_init(void)
 
     ADC1->CFGR1 = ADC_CFGR1_RES_1;
 
-    ADC1->CHSMPR2 = (0x7 << 0);
+    ADC1->CHSMPR2 = (0x7 << 3);
 
     ADC1->SMPR1 = 0x07;
 

drv/adc/pga_driver.h

@@ -5,7 +5,7 @@
 #include "sys_data_bus.h"
 #include <stdint.h>
 
-#define PGA_ADC_CH            ADC_CH_0
+#define PGA_ADC_CH            ADC_CH_6
 
 #define PGA_GAIN_1            0x00
 #define PGA_GAIN_2            0x01