still timer

cube/User/Src/main2.c

@@ -6,6 +6,7 @@
 #include <main.h>
 #include <usart.h>
 #include <spi.h>
+#include <tim.h>
 
 #include <PontCoopScheduler.h>
 
@@ -47,6 +48,10 @@ void my_setup_2() {
 //    cmdHandlerInit();
 
     schAdd(second_tick, NULL, 0, 60*1000);
+
+
+    HAL_TIM_IC_Start_IT(&mainsCnt, TIM_CHANNEL_1);
+    
     logMsg("Application running");
 }
 
@@ -78,3 +83,22 @@ void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi) {
     }
 }
 
+void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim) {
+    static uint8_t state = 0;
+    static uint32_t savedV = 0;
+    if (htim == &mainsCnt) {
+        uint32_t v = HAL_TIM_ReadCapturedValue(htim, TIM_CHANNEL_1);
+        if (state == 0) {
+            show(DEBUG_2, ON);
+            savedV = v;
+            state = 1;
+        } else if (state == 1) {
+            show(DEBUG_2, OFF);
+            uint32_t captured = (savedV < v) ? (v - savedV) : ((htim->Init.Period - savedV) + v);
+            logMsg("CCR: %ld", captured);
+            state = 0;
+        } else {
+            state = 0;
+        }
+    }
+}