Use DMAR to update CCR1~4 registers I now need to update the CCR1~CCR3 register at the same time with DMA with DMAR register, I use STM32F103C8T6, I use STM32F10x_StdPeriph_Lib_V3.6.0\Project\STM32F10x_StdPeriph_Examples\TIM\DMABurst example, in the example DMA is Normal mode, I need to keep updating the CCRx registers, so I changed the DMA to Circular mode, but the CCRx registers are not updated as I expected, they are misaligned #define TIM1_DMAR_ADDRESS ((uint32_t)0x40012C4C) /* TIM ARR (Auto Reload Register) address */
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
GPIO_InitTypeDef GPIO_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
uint16_t SRC_Buffer[6] = {0x1234, 0x5678, 0xABCD};
int main(void)
{
/* TIM1 and GPIOA clock enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1 | RCC_APB2Periph_GPIOA, ENABLE);
