更换串口为USB

Power_Pico/Core/Inc/adc.h

@@ -30,18 +30,70 @@ extern "C" {
 
 /* USER CODE BEGIN Includes */
 
-#define ADC_TIMES 1
-#define ADC_CHANELS 5
+#define ADC_TIMES 100 // 每次采样 100 次 (10ms)
+#define ADC_CHANNELS 5 // 5 通道：电压 + 3 档电流 + REF
+#define PACKET_HEADER_0 0xAA
+#define PACKET_HEADER_1 0x55
 
+// Rank1=PA5, Rank2=PA6, Rank3=PA7, Rank4=PB0, Rank5=PB1
+#define IDX_VOL  0
+#define IDX_LOW  1
+#define IDX_MID  2
+#define IDX_HIGH 3
+#define IDX_REF  4
+
+// Resistance values in ohms
+#define HIGH_CUR_RES 0.005f   // 5 m ohm
+#define MID_CUR_RES 0.5f      // 500 m ohm
+#define LOW_CUR_RES 50.0f     // 50 ohm
+
+// 预先计算标度因子
+#define SCALE_LOW  (3.0f / 4096.0f / 50.0f / LOW_CUR_RES *  1000000.0) // uA
+#define SCALE_MID  (3.0f / 4096.0f / 50.0f / MID_CUR_RES *  1000000.0) // uA
+#define SCALE_HIGH (3.0f / 4096.0f / 50.0f / HIGH_CUR_RES * 1000000.0) // uA
+
+// 量程阈值
+#define THRESH_HIGH 4000-2048 // 对应550uA 50mA
+#define THRESH_LOW  15 // 对应大概450uA 45mA
+// 次数
+#define THRESH_TIMES 8
+
+// 监视器更新频率和对应的采样点数量
+#define MONITOR_UPDATE_PERIOD_MS 250
+#define MONITOR_UPDATE_CHUNK_COUNT (MONITOR_UPDATE_PERIOD_MS / 10)
+
+/* --- USB 数据包结构 (总长 711 字节) --- */
+#pragma pack(push, 1) // 强制 1 字节对齐
 typedef struct {
-  uint8_t  header[4]; //2的倍数
-  // 0x55, 0xAA header
-  // 0x0A adc times, 0x05 adc channels (so data lenth is times * channels * 2 bytes)
-  // 0x?0 for LOW, 0x?1 for MID, 0x?2 for HIGH.
-  uint16_t data[ADC_TIMES][ADC_CHANELS];
-} ADC_Packet;
+    uint8_t  header[2];      // 0x55, 0xAA
+    uint64_t timestamp;      // 64位微秒级时间戳
+    uint8_t  data_count;     // 固定 100
 
-extern ADC_Packet adc_packet;
+    struct {
+        uint8_t  range;      // 量程: 0=Low, 1=Mid, 2=High
+        uint16_t vol_adc;    // 电压
+        uint16_t cur_adc;    // 电流 (选择后)
+        uint16_t ref_adc;    // 参考电压
+    } samples[ADC_TIMES];
+
+} USB_ADC_Packet_t;
+#pragma pack(pop)
+
+/* --- 统计监视器结构体 --- */
+typedef struct {
+    /* * 累加和使用 64 位整数，防止溢出并保持精度
+     * sum_cur_resolution_10na: 用户要求的 uA*100，即分辨率 0.01uA (10nA)
+     * sum_vol_mv: 电压为了保持精度累加 mV，Get时再转 V
+     */
+    volatile int64_t sum_cur_resolution_10na;
+    volatile int64_t sum_vol_mv;
+    volatile uint32_t count;
+    volatile float avg_vol_v;
+    volatile float avg_cur_ua;
+} Data_Monitor_t;
+
+// 原始 DMA 缓冲区 [200][5]
+extern uint16_t adc_raw_buffer[ADC_TIMES * 2][ADC_CHANNELS];
 
 /* USER CODE END Includes */
 
@@ -55,6 +107,9 @@ void MX_ADC1_Init(void);
 
 /* USER CODE BEGIN Prototypes */
 
+void Data_Monitor_Get_Values(float *out_vol_v, float *out_cur_ua);
+void Data_Monitor_Clear(void);
+
 /* USER CODE END Prototypes */
 
 #ifdef __cplusplus