OSC_IN and OSC_EN wrong initialization order

[cyber_v1]

Hi!

I have a board with an external oscillator. The oscillator would not start, and I spent a few hours debugging the issue only to find out the automatically generated code initialized the clock and the OSC_EN pin in the wrong order!

relevant ioc lines:

PC14-OSC32_IN\ (PC14).Mode=HSE-External-Clock-Source
PC14-OSC32_IN\ (PC14).Signal=RCC_OSC_IN
PC15-OSC32_OUT\ (PC15).Mode=OSC enable
PC15-OSC32_OUT\ (PC15).Signal=RCC_OSC_EN

the generated code:

/* MCU Configuration--------------------------------------------------------*/

/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();

/* USER CODE BEGIN Init */

/* USER CODE END Init */

/* Configure the system clock */
SystemClock_Config();

/* USER CODE BEGIN SysInit */

/* USER CODE END SysInit */

/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_ADC1_Init();
MX_TIM1_Init();
/* USER CODE BEGIN 2 */

...

void SystemClock_Config(void)
{
...
 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
 {
 Error_Handler();
 }
...

static void MX_GPIO_Init(void)
{
...
 /*Configure GPIO pin : PC15 */
 GPIO_InitStruct.Pin = GPIO_PIN_15;
 GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
 GPIO_InitStruct.Pull = GPIO_NOPULL;
 GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
 GPIO_InitStruct.Alternate = GPIO_AF1_OSC;
 HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

Note `HAL_RCC_OscConfig` will wait until HSERDY but it will be never ready if since PC15 is not configured as OSC_EN yet.

[Ghofrane GSOURI]

Hello @cyber_v1 

Thank you for your valuable contribution.

The issue has been escalated to our development team under internal ticket number 221262 for further investigation and resolution.

 

THX

Ghofrane