Nucleo Board Upload issue

[maxgerhardt]

@paul2

As a side note, please let me express my astonishment to the fact that vivid colors+“target halted”+“Programming Finished”+“Resetting Target”+“shutdown command invoked” means “everything is fine”

That’s the OpenOCD output that is colored that way by PlatformIO. The output makes sense – first it thas to stop the MCU from executing any further code from flash, then burn the new program into flash, verify it by reading ot out again, then resetting the MCU so that it starts running the new application, and finally shutting down OpenOCD.,

@paul2

Thanks @maxgerhardt , that’s good to know. So the fact that my program doesn’t run (no led blinking, no println working) must come from somewhere else. I will investigate more.

From experience the issue in these cases stems from either wrong code (though unlikely if not even a Serial.println works, or clock initialization issues. See the thread Nucleo F401RE fails to execute Clock init issue - #17 by vortex314. The gist is that there are older Nucleo board revision which do not have the solder bridge set so that a clock-out signal from the ST-Link reaches the main STM32 MCU, but the STM32Duino expects this clock to be there since it programs the MCU to use that clock signal as its own, and if it’s not there your MCU will hang up in an error loop in the clock init function.

You check extremely fast whether you are running into this issue by adding a piece of code at the bottom of your main.cpp file to use only the internal, always-available clock source (MSI + PLL) instead of an external one.

extern "C" void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
  RCC_OscInitStruct.MSIState = RCC_MSI_ON;
  RCC_OscInitStruct.MSICalibrationValue = 0;
  RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
  RCC_OscInitStruct.PLL.PLLM = 1;
  RCC_OscInitStruct.PLL.PLLN = 40;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV7;
  RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
  RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
  {
    Error_Handler();
  }
  /** Configure the main internal regulator output voltage
  */
  if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
  {
    Error_Handler();
  }
}

if you still have problems, please post the whole platformio.ini and code that you’re testing with.