About VNado.1

VNado.1 · 2020-12-21

Here's the essence of what I have at the moment. I wonder why it does not enter DMATxComplete, I have tried with 128 and 30 buffer sizes...//****** dac.c **********// DAC_HandleTypeDef hdac1; DMA_HandleTypeDef hdma_dac_ch1; DMA_HandleTypeDef hdma_d...

VNado.1 · 2020-12-17

VNado.1 · 2020-12-16

VNado.1 · 2020-12-14

VNado.1 · 2020-11-30

VNado.1 · 2020-12-22

Where can I find the DMA and DAC registers content? I have looked in HAL_DMA_Start_IT() and I am not sure I know where to focus.

VNado.1 · 2020-12-22

When I set DMA for DAC_Ch1 as a circular buffer it enters WavePlayer_DMATxComplete_IRQHandler constantly. However, when I set the DMA as a "normal" buffer, it only enters it at the beginning. It is supposed to do reset BufferRead = 1, since it does n...

VNado.1 · 2020-12-17

This is what I found in the manual, "Dual DAC channel independent or simultaneous conversions• External triggers for conversionThe DAC channels are triggered through the timer update outputs that are also connected to different DMA channels."2. I als...

VNado.1 · 2020-12-17

It is a L4+. I guess it also works?

VNado.1 · 2020-11-26

This is the clock config I have in CubeMX

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Trying to integrate the waveplayer from stm32137 example in L4+ MCU. However, the loop updating the DMA buffer only enters DMATxComplete on 3 occasions?

Does the order of the pins assigned with GPIO_InitStruct.Pin matter? ex: PIN1 | PIN2 | PIN3 vs PIN2 | PIN1 | PIN3, does it give the same result? and what about HAL_GPIO_WritePin, does the order of the pins matter?

Can I use TIM7 for DAC1 Channel1 and TIM6 for DAC1 Channel2 (two different timers..) ? Second question, there is HAL_DAC_ConvCpltCallbackCh1 however I cannot find HAL_DAC_ConvCpltCallbackCh2, does it exist for the DAC1Channel2?

Once the DAC DMA is started, do I need to stop it in order to change the content of the buffer? Or I can simply do a HAL_DAC_Start_DMA() again with an updated buffer?

How the System clock is set in the files? I see uint32_t SystemCoreClock = 4000000U in system_stm32l4xx.c however I had set 120MHz in CubeMX for SysClock...

Re: Trying to integrate the waveplayer from stm32137 example in L4+ MCU. However, the loop updating the DMA buffer only enters DMATxComplete on 3 occasions?

Re: Trying to integrate the waveplayer from stm32137 example in L4+ MCU. However, the loop updating the DMA buffer only enters DMATxComplete on 3 occasions?

Re: Can I use TIM7 for DAC1 Channel1 and TIM6 for DAC1 Channel2 (two different timers..) ? Second question, there is HAL_DAC_ConvCpltCallbackCh1 however I cannot find HAL_DAC_ConvCpltCallbackCh2, does it exist for the DAC1Channel2?

Re: Can I use TIM7 for DAC1 Channel1 and TIM6 for DAC1 Channel2 (two different timers..) ? Second question, there is HAL_DAC_ConvCpltCallbackCh1 however I cannot find HAL_DAC_ConvCpltCallbackCh2, does it exist for the DAC1Channel2?

Re: Upgraded my project to a new MCU, going from 80MHz to 120MHz SysClock. Since then my USART1 and 2 do not work well. My debugging until now suggests a baud rate problem. Where (which file) can I modify the prescaler/divisor if needed?