Hello,
I'm tyring to program a STM32F4 (with ARM F4) board to generate a sinusoidal PWM, that is a sequence of pulses with variable width that, once filtered by a LPF, gives a sinusoid.
I was told the best way to get it is by generating a sequence of single pulses synchronized to timer by interrupts.
I've tried several solutions but I'm not good at managing interrupts.
Do you have any idea how to achieve this goal? Can you attach a piece of code where it's explained how to do it?
Thanks in advance! ;)
Mara
It looks like you have a STM32F401RE-Nucleo board. You can download at:
www.st.com/.../PF259243
at the bottom of the page is a read button. It provides a few projects for your board as well as other STMF4 Boards. The more expensive boards have the most project examples. I am looking at a Nucleo board the STM32F153RE. It has one project called TIM_DMA which creates a output PWM signal that varies its pulses since the DMA continuously writes to TIM1 Capture Compare Register 3.
Description in readme file This example provides a description of how to use DMA with TIM1 Update request to transfer Data from memory to TIM1 Capture Compare Register 3 (CCR3).
The following configuration values are used in this example:
- TIM1CLK = SystemCoreClock - Counter repetition = 3 - Prescaler = 0 - TIM1 counter clock = SystemCoreClock - SystemCoreClock is set to 64 MHz for STM32F1xx
The objective is to configure TIM1 channel 3 to generate complementary PWM (Pulse Width Modulation) signal with a frequency equal to 17.57 KHz, and a variable duty cycle that is changed by the DMA after a specific number of Update DMA request.
The number of this repetitive requests is defined by the TIM1 Repetition counter, each 4 Update Requests, the TIM1 Channel 3 Duty Cycle changes to the next new value defined by the aCCValue_Buffer.
The PWM waveform can be displayed using an oscilloscope.
The examples provided for the STM32F401RE-Nucleo do not include a PWM project. But if you download the STM32F4 Cube software there are also examples for the Other STM32F4 boards included. You can browse the other projects and take a look at PWM examples. Especially look at the EVAL board projects.
With DMA
// NUCLEO-F401RE DMA Driven PWM - Not good for school or work assignments. // Copyright (C) 2015 sourcer32@gmail.com, All Rights Reserved #include "stm32f4xx.h" #define PWM_ELEMENTS 100 const u32 PWM_Buffer[PWM_ELEMENTS] = { // Sine Table 0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 50, 53, 56, 58, 61, 63, 66, 68, 70, 72, 75, 77, 79, 80, 82, 84, 86, 87, 89, 90, 91, 92, 94, 95, 96, 96, 97, 98, 98, 99, 99, 99, 99,100, 99, 99, 99, 99, 98, 98, 97, 96, 96, 95, 94, 92, 91, 90, 89, 87, 86, 84, 82, 80, 79, 77, 75, 72, 70, 68, 66, 63, 61, 58, 56, 53, 50, 48, 45, 42, 39, 36, 33, 30, 27, 24, 21, 18, 15, 12, 9, 6, 3 }; /**************************************************************************************/ void RCC_Configuration(void) { /* GPIOA clock enable */ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); /* DMA1 clock enable */ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA1, ENABLE); /* TIM2 clock enable */ RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); } /**************************************************************************************/ void GPIO_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; /* GPIO Configuration */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz; GPIO_Init(GPIOA, &GPIO_InitStructure); /* Connect TIM2 pins to AF */ GPIO_PinAFConfig(GPIOA, GPIO_PinSource5, GPIO_AF_TIM2); // PA5 TIM2_CH1 } /**************************************************************************************/ void DMA_Configuration(void) { DMA_InitTypeDef DMA_InitStruct; /* TIM2_UP - DMA1, Channel 3, Stream 1 */ DMA_InitStruct.DMA_Channel = DMA_Channel_3; DMA_InitStruct.DMA_BufferSize = PWM_ELEMENTS; DMA_InitStruct.DMA_DIR = DMA_DIR_MemoryToPeripheral; DMA_InitStruct.DMA_Mode = DMA_Mode_Circular; DMA_InitStruct.DMA_FIFOMode = DMA_FIFOMode_Disable; DMA_InitStruct.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull; DMA_InitStruct.DMA_Memory0BaseAddr = (uint32_t)&PWM_Buffer[0]; DMA_InitStruct.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; DMA_InitStruct.DMA_MemoryInc = DMA_MemoryInc_Enable; DMA_InitStruct.DMA_MemoryBurst = DMA_MemoryBurst_Single; DMA_InitStruct.DMA_PeripheralBaseAddr = (uint32_t)&TIM2->CCR1; DMA_InitStruct.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word; DMA_InitStruct.DMA_PeripheralInc = DMA_PeripheralInc_Disable; DMA_InitStruct.DMA_PeripheralBurst = DMA_PeripheralBurst_Single; DMA_InitStruct.DMA_Priority = DMA_Priority_Medium; DMA_Init(DMA1_Stream1, &DMA_InitStruct); /* Enabling DMA */ DMA_Cmd(DMA1_Stream1, ENABLE); } /**************************************************************************************/ void TIM2_Configuration(void) { TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; TIM_OCInitTypeDef TIM_OCInitStructure; TIM_TimeBaseStructure.TIM_Prescaler = (SystemCoreClock / 10000) - 1; // 10 KHz tick TIM_TimeBaseStructure.TIM_Period = 100-1; // 0..99, 100 Hz period TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; TIM_TimeBaseStructure.TIM_RepetitionCounter = 1; TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); /* Channel 1 configuration (PA.5) */ TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_Pulse = 50; // 50% TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset; TIM_OC1Init(TIM2, &TIM_OCInitStructure); /* Associating DMA and TIM2 Update (DMA1 Channel 3, Stream 1) */ TIM_DMACmd(TIM2, TIM_DMA_Update, ENABLE); /* Turning on TIM2 and PWM outputs */ TIM_Cmd(TIM2, ENABLE); } /**************************************************************************************/ int main(void) { RCC_Configuration(); GPIO_Configuration(); DMA_Configuration(); TIM2_Configuration(); while(1); } /**************************************************************************************/ #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None */ void assert_failed(uint8_t* file, uint32_t 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) */ /* Infinite loop */ while (1) { } } #endif /**************************************************************************************/
With IRQ
// NUCLEO-F401RE IRQ Driven PWM - Not good for school or work assignments. // Copyright (C) 2015 sourcer32@gmail.com, All Rights Reserved #include "stm32f4xx.h" #define PWM_ELEMENTS 100 const u32 PWM_Buffer[PWM_ELEMENTS] = { // Sine Table 0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 50, 53, 56, 58, 61, 63, 66, 68, 70, 72, 75, 77, 79, 80, 82, 84, 86, 87, 89, 90, 91, 92, 94, 95, 96, 96, 97, 98, 98, 99, 99, 99, 99,100, 99, 99, 99, 99, 98, 98, 97, 96, 96, 95, 94, 92, 91, 90, 89, 87, 86, 84, 82, 80, 79, 77, 75, 72, 70, 68, 66, 63, 61, 58, 56, 53, 50, 48, 45, 42, 39, 36, 33, 30, 27, 24, 21, 18, 15, 12, 9, 6, 3 }; /**************************************************************************************/ void RCC_Configuration(void) { /* GPIOA clock enable */ RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE); /* TIM2 clock enable */ RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE); } /**************************************************************************************/ void GPIO_Configuration(void) { GPIO_InitTypeDef GPIO_InitStructure; /* GPIO Configuration */ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF; GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz; GPIO_Init(GPIOA, &GPIO_InitStructure); /* Connect TIM2 pins to AF */ GPIO_PinAFConfig(GPIOA, GPIO_PinSource5, GPIO_AF_TIM2); // PA5 TIM2_CH1 } /**************************************************************************************/ void NVIC_Configuration(void) { NVIC_InitTypeDef NVIC_InitStructure; NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; NVIC_Init(&NVIC_InitStructure); } /**************************************************************************************/ void TIM2_Configuration(void) { TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; TIM_OCInitTypeDef TIM_OCInitStructure; TIM_TimeBaseStructure.TIM_Prescaler = (SystemCoreClock / 10000) - 1; // 10 KHz tick TIM_TimeBaseStructure.TIM_Period = 100-1; // 0..99, 100 Hz period TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; TIM_TimeBaseStructure.TIM_RepetitionCounter = 1; TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); /* Channel 1 configuration (PA.5) */ TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; TIM_OCInitStructure.TIM_Pulse = 50; // 50% TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; TIM_OCInitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset; TIM_OC1Init(TIM2, &TIM_OCInitStructure); /* Enable TIM2 Update Interrupt */ TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE); /* Turning on TIM2 and PWM outputs */ TIM_Cmd(TIM2, ENABLE); } /**************************************************************************************/ void TIM2_IRQHandler(void) // Per Keil forum example, modified to suit { static int index = 0; if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET) { TIM_ClearITPendingBit(TIM2, TIM_IT_Update); TIM2->CCR1 = PWM_Buffer[index]; index = (index + 1) % PWM_ELEMENTS; } } /**************************************************************************************/ int main(void) { RCC_Configuration(); GPIO_Configuration(); NVIC_Configuration(); TIM2_Configuration(); while(1); } /**************************************************************************************/ #ifdef USE_FULL_ASSERT /** * @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retval None */ void assert_failed(uint8_t* file, uint32_t 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) */ /* Infinite loop */ while (1) { } } #endif /**************************************************************************************/
Thanks for your help!
I'm using the second code, the one with IRQ, but I got 26 errors because a lot of functions and structures you've used are unknown to Keil, like:
TIM_IT_Update TIM_Cmd RCC_AHB1PeriphClockCmd NVIC_InitStructure ... and many more
What library did you use? I can't find none of these functions. Did you program the code for the STM32F401RE?
Just another question ... how can I modify that code if I want to introduce another two phases at 120 and 240 degrees to drive a brushless motor?
"What library did you use? I can't find none of these functions."
I thought Google was available almost world-wide.
I got all the STM32F4 driver libraries I've found on the ST website, but none of them got the functions you've used.
Thsnks for the Code Clive.
It uses the ST Standard Peripheral Library (SPL)
The Red Download button at the bottom www.st.com/.../PF257901
You'd have to make sure the project called out the 401, and configure the PLL correctly in the system_stm32f4xx.c
There are project templates for MDK4, for MDK5 you will probably need to install the Cortex Legacy Pack
The 401C Discovery firmware library may be a shorter jump www.st.com/.../PF259428
Hello Clive,
I'm replacing the functions you've used for the F4 library's functions, so I can better understand what you meant to do.
But there is one thing I can't still figure it out.
Why did you define the "TIM2_IRQHandler(void)" function if you din't even call it in the main part?
Do I have to call it just before the "while(1)" cycle?
Thank you, Mara
It's an Interrupt, it's called by the processor when the TIM2 Update Interrupt asserts. The NVIC/TIM configuration enable this, and the vector table of interrupt handlers are listed in startup_stm32f4xx.s direct execution to the routine.
It will be called outside the flow of regular code, you don't need to explicitly call it. This is how interrupts work. Please refer to Computer Science and Micro-Controller texts if you need foundational understanding.
I'd recommend one of Joseph Yiu's books on the Cortex-Mx series parts, and there are of course ARM's Technical Reference Manuals (TRM) which describe the cores in significant detail.
Hi Clive,
There is below the code I've modified starting from the code you've posted.
I used the library functions associated to my board (STM32F401RE) and not the functions of the standard library, but the firmware didn't work: I have no signal at output.
Do you have any idea why it doesn't work?
Thanks, Mara
#include "stm32f4xx_hal.h" #include "stm324x9i_eval.h" #include "stm32f4xx_hal_tim.h" #include "core_cm4.h" /* Private typedef -----------------------------------------------------------*/ #define Period_Value (1000-1) /* Period Value */ // Timer handler declaration TIM_HandleTypeDef TimHandle; // OC structure definition TIM_OC_InitTypeDef OCConfig; // GPIO PWM structure definition GPIO_InitTypeDef GPIOConfig; // Counter Prescaler value uint32_t uwPrescalerValue = 0; int sintable[300] = {250,255,260,266,271,...}; // max sin value = 500 /* Function prototypes -----------------------------------------------*/ static void SystemClock_Config(void); static void Timer_Config(void); static void GPIO_Config(void); static void Timer_OC (void); static void NVIC_Config(void); int main(void) { // Hal library initialization HAL_Init(); // Set Systemclock @ 180 Mhz SystemClock_Config(); // Timer configuration Timer_Config(); // "Output compare mode" configuration Timer_OC(); // TIM2 interrupt configuration NVIC_Config(), // Output PIN configuration GPIO_Config(); // Infitite cycle while (1) { } } /** * @brief System Clock Configuration * The system Clock is configured as follow : * System Clock source = PLL (HSE) * SYSCLK(Hz) = 180000000 * HCLK(Hz) = 180000000 * AHB Prescaler = 1 * APB1 Prescaler = 4 * APB2 Prescaler = 2 * HSE Frequency(Hz) = 25000000 * PLL_M = 25 * PLL_N = 360 * PLL_P = 2 * PLL_Q = 7 * VDD(V) = 3.3 * Main regulator output voltage = Scale1 mode * Flash Latency(WS) = 5 * @param None * @retval None */ static void SystemClock_Config(void) { RCC_ClkInitTypeDef RCC_ClkInitStruct; RCC_OscInitTypeDef RCC_OscInitStruct; /* Enable Power Control clock */ __HAL_RCC_PWR_CLK_ENABLE(); /* The voltage scaling allows optimizing the power consumption when the device is clocked below the maximum system frequency, to update the voltage scaling value regarding system frequency refer to product datasheet. */ __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); /* Enable HSE Oscillator and activate PLL with HSE as source */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = 25; RCC_OscInitStruct.PLL.PLLN = 360; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = 7; HAL_RCC_OscConfig(&RCC_OscInitStruct); /* Activate the Over-Drive mode */ HAL_PWREx_EnableOverDrive(); /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */ RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2); RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5); } void Timer_Config() { /* Compute the prescaler value to have TIM2 counter clock equal to 7,5 MHz */ uwPrescalerValue = ((SystemCoreClock /2) / 7500000) - 1; /* Configure the TIM peripheral */ /* Initialize TIMx peripheral as follow: + Prescaler = (SystemCoreClock/2)/10000000 + Period = 500 (to have an output frequency equal to 15 KHz) + ClockDivision = 0 + Counter direction = Up */ TimHandle.Instance = TIM2; TimHandle.Init.Prescaler = uwPrescalerValue; TimHandle.Init.Period = Period_Value; TimHandle.Init.ClockDivision = 0; TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP; TimHandle.Init.RepetitionCounter = 0; HAL_TIM_Base_Init(&TimHandle); } void Timer_OC() { OCConfig.OCMode = TIM_OCMODE_PWM1; OCConfig.OCPolarity = TIM_OCPOLARITY_HIGH; OCConfig.Pulse = sintable[0]; OCConfig.OCPolarity = TIM_ICPOLARITY_RISING; // OCConfig.OCIdleState = TIM_OCIDLESTATE_RESET only for TIM1 e TIM8 HAL_TIM_OC_Init(&TimHandle); } void NVIC_Config() { // Enable the TIM2 associated interrupt HAL_NVIC_EnableIRQ(TIM2_IRQn); // Set interrupt priority HAL_NVIC_SetPriority(TIM2_IRQn, 1, 0); } void TIM2_IRQHandler(void) { static int index = 0; if (HAL_NVIC_GetPendingIRQ(TIM2_IRQn) != RESET) { HAL_NVIC_ClearPendingIRQ(TIM2_IRQn); TIM2->CCR1 = sintable[index]; index = (index + 1) % 300; } } void GPIO_Config() { // Enable clock for GPIOs __GPIOA_CLK_ENABLE(); GPIOConfig.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2; GPIOConfig.Mode = GPIO_MODE_AF_PP; GPIOConfig.Pull = GPIO_NOPULL; GPIOConfig.Speed = GPIO_SPEED_HIGH; HAL_GPIO_Init(GPIOA, &GPIOConfig); } #ifdef USE_FULL_ASSERT void assert_failed(uint8_t* file, uint32_t line) { /* Infinite loop */ while (1) { } } #endif
I'm not using HAL/Cube, you're on your own there.
But the 401RE doesn't not run at 180MHz, it's a part limited to 84 MHz as I recall
try using a table for the values 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436 1 7 8 1 5 23 7 6 3 6 5 45 3 5 7 5 4 34 5 7 6 45 3 4 56 5 6 34 43 5 4 3 43 5 5 4 3 3 4 5 6 7 87 65 5 65 6 4 342 4 5 54 3 3 43 5 53 34 34 35 5 5 4 32 2 1 34 56 47 45 45 3 3 8 2 67 7 54 56 643 346 436
Hi Mara,
have a look at the "stm32f4xx_hal_tim.h". I can't see that you are starting the timer. Try one of the functions in the mentioned header file e.g. "HAL_TIM_Base_Start_IT". The function "HAL_TIM_Base_Start_DMA" might also be interesting for you. Try to find out which one of the functions you need as I'm also not as familiar with the HAL of ST.
Also, as Clive said, be careful with the frequency you want to run the timer with and with choosing the prescaler. The clock the timers are running with is not always the system clock. In ST's datasheets you always find an "block diagram" of the controller. In that picture you can see the maximum possible frequency the timer can run with, which is also most likely the frequency that will be configured for the timer. Good luck!
Regards, Niclas
Also, at the beginning of the corresponding c-file to the driver's header-file there is always a section "##### How to use this driver #####". Have a look at that section in the "stm32f4xx_hal_tim.c". I think it mentions some function-calls which are missing in your code.