STM32WB15CC TIM2 Interrupt Not Being Called.

[CBada.1]

Hello everyone, I have been working with the stm32wb15cc for a few months and am having a weird issue. I believe I have set up TIM2 and it's interrupts properly and my TIM1 interrupts work but TIM2 interrupts are not being called. TIM2 clk speed is 4Mhz. Any insights would be appreciated!

I noticed nowhere in the the setup function is there a  "HAL_NVIC_SetPriority(TIM2_IRQn, 0, 0);" or HAL_NVIC_EnableIRQ(TIM2_IRQn); but maybe HAL does it behind the scenes? It didn't work when I added it anyways lol.

I have set up the TIM2 Timer as follows:

• I have called "HAL_TIM_Base_Start(&htim2);"
• HAL_TIM_PeriodElapsedCallback function works for TIM1 but when I check for htim->Instance to be TIM2 it is never called. (callback image linked)
• I have made sure I enabled TIM2 interrupt in the NVIC. (interrupt image linked)

The setup Code is shown below and in TIM_Setup and TIM_Setup_Code images.

 TIM_ClockConfigTypeDef sClockSourceConfig = {0};

 TIM_MasterConfigTypeDef sMasterConfig = {0};

 htim2.Instance = TIM2;

 htim2.Init.Prescaler = 4000;

 htim2.Init.CounterMode = TIM_COUNTERMODE_UP;

 htim2.Init.Period = 10000;

 htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;

 htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;

 if (HAL_TIM_Base_Init(&htim2) != HAL_OK)

  Error_Handler();

 sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;

 if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)

  Error_Handler();

 sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;

 sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;

 if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)

  Error_Handler();

[Sara BEN HADJ YAHYA]

Hello @CBada.1​ ,

Thanks for your feedback,

Actually, the  "HAL_NVIC_SetPriority(TIM2_IRQn, 0, 0)" and HAL_NVIC_EnableIRQ(TIM2_IRQn) are generated in the HAL_TIM_Base_MspInit() function in stm32wbxx_hal_msp.c file.

And the HAL_TIM_IRQHandler(&htim2) is generated in TIM2_IRQHandler() in stm32wbxx_it.c file.

I hope this helps !

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Thanks for your contribution and do not hesitate to raise any issue/ feedback.

Sara.

[TDK]

> I have called "HAL_TIM_Base_Start(&htim2);"

HAL_TIM_Base_Start doesn't enable update interrupts. If you want interrupts, call HAL_TIM_Base_Start_IT.