TIM_DMA sample

stm32f4xx_it.c:49

This function handles NMI exception.

stm32f4xx_it.c:58

This function handles Hard Fault exception.

stm32f4xx_it.c:119

This function handles Debug Monitor exception.

stm32f4xx_it.c:71

This function handles Memory Manage exception.

stm32f4xx_it.c:84

This function handles Bus Fault exception.

stm32f4xx_it.c:97

This function handles Usage Fault exception.

stm32f4xx_it.c:137

This function handles SysTick Handler.

stm32f4xx_it.c:110

This function handles SVCall exception.

stm32f4xx_it.c:128

This function handles PendSVC exception.

main.c:59

Main program

main.c:287

System Clock Configuration The system Clock is configured as follow : System Clock source = PLL (HSE) SYSCLK(Hz) = 100000000 HCLK(Hz) = 100000000 AHB Prescaler = 1 APB1 Prescaler = 2 APB2 Prescaler = 1 HSE Frequency(Hz) = 8000000 PLL_M = 8 PLL_N = 400 PLL_P = 4 VDD(V) = 3.3 Main regulator output voltage = Scale1 mode Flash Latency(WS) = 3

stm32f4xx_it.c:153

This function handles TIM3 update interrupt.

stm32f4xx_it.c:171

This function handles DMA interrupt request.

main.c:332

Timer update interrupt processing

main.c:258

Set LED2 to Blinking mode for an infinite loop (toggle period based on value provided as input parameter).

main.c:86

This function enables the peripheral clock for the DMA, configures the DMA transfer, configures the NVIC for DMA and enables the DMA.

main.c:135

This function configures TIM3 channel 3 to generate a PWM edge aligned 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 requests. The number of this repetitive requests is defined by the TIM3 repetition counter, each 4 update requests, the TIM3 Channel 3 Duty Cycle changes to the next new value defined by the aCCValue.

main.c:357

DMA transfer complete callback

main.c:373

DMA transfer error callback

main.c:237

Initialize LED2.

system_stm32f4xx.c:79

Miscellaneous Configuration *********************** Vector Table base offset field. This value must be a multiple of 0x200.

main.h:21

@file Examples_LL/TIM/TIM_DMA/Inc/main.h @author MCD Application Team Header for main.c module @attention Copyright (c) 2017 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.

stm32f4xx_it.h:21

@file Examples_LL/TIM/TIM_DMA/Inc/stm32f4xx_it.h @author MCD Application Team This file contains the headers of the interrupt handlers. @attention Copyright (c) 2017 STMicroelectronics. All rights reserved. This software is licensed under terms that can be found in the LICENSE file in the root directory of this software component. If no LICENSE file comes with this software, it is provided AS-IS.

main.h:41

LED2

main.h:42

main.h:50

main.h:43

main.h:48

Toggle periods for various blinking modes

main.h:49

main.c:40

main.c:35

main.c:43