aliexpress sucks

Core/Src/app_main.c

@@ -97,6 +97,7 @@ void app_task_main(void *argument)
     bool any_change = true;
     uint32_t last_redraw = osKernelGetTickCount();
 
+    uint32_t last_blink = xTaskGetTickCount();
     for (;;) {
         // sampling is done in the heater loop
 
@@ -144,11 +145,16 @@ void app_task_main(void *argument)
             any_change = false;
 
             // Blink
-            HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin);
         }
 
         vTaskDelay(pdMS_TO_TICKS(10));
 
+        now = osKernelGetTickCount();
+        if (now - last_blink > 250) {
+            HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin);
+            last_blink = now;
+        }
+
         // feed dogs
         HAL_IWDG_Refresh(&hiwdg);
     }

Core/Src/main.c

@@ -106,6 +106,7 @@ int main(void)
   MX_TIM3_Init();
   MX_SPI2_Init();
   /* USER CODE BEGIN 2 */
+    printf("Kernel start\r\n");
   /* USER CODE END 2 */
 
   /* Init scheduler */
@@ -224,6 +225,7 @@ void Error_Handler(void)
 void assert_failed(uint8_t *file, uint32_t line)
 {
   /* USER CODE BEGIN 6 */
+  printf("assert_failed %s:%d\r\n", file, line);
   /* User can add his own implementation to report the file name and line number,
      ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
   /* USER CODE END 6 */

Core/Src/spi.c

@@ -44,7 +44,7 @@ void MX_SPI2_Init(void)
   hspi2.Init.CLKPolarity = SPI_POLARITY_LOW;
   hspi2.Init.CLKPhase = SPI_PHASE_1EDGE;
   hspi2.Init.NSS = SPI_NSS_SOFT;
-  hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
+  hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_64;
   hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;
   hspi2.Init.TIMode = SPI_TIMODE_DISABLE;
   hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;