About GKIM.4

GKIM.4 · 2022-05-11

Hello!I am using b-l475e-iot01a1, and I am currently working on DAC using Timer and DMA.DAC uses Ch1 of DAC1 and Timer uses TIM2.The TRGO of TIM2 is Update Event, and the Trigger of DAC is using TIM2 Trigger Out Event.Sine function values from 6...

GKIM.4 · 2022-05-02

I want to work on flash with B-L475E-IOT01A1.After flash erase operation, flash write operation is performed, and memory is being checked through debugging.On other boards, flash erase operation changed the memory in that location to the "?" mark, ...

GKIM.4 · 2022-04-19

I want to generate sine wave using DAC, TIMER, DMA.When TIMER do update event, Board makes DAC output.Please Help me.

GKIM.4 · 2022-04-11

GKIM.4 · 2022-05-12

Thank you.I found my error.I selected clock source to MSI.So. I changed clock source to HSI.As a result, DAC output is 200.2 Hz.

GKIM.4 · 2022-05-12

Thank you.I checked clock source.My problem is that clock source is set to MSI.And I solved my problem by changing clock source to HSI.As a result, dac output frequency is 200.2 Hz.And I need to check the application note you gave me and optimi...

GKIM.4 · 2022-05-12

Thanks for comment.I don't think that check the clock output.I'll check the clock output MCO.But RCC_MCO is assigned to only PA8 that is assigned to contol of RF module on B-L475E-IOT01A1.Thank you.

GKIM.4 · 2022-05-11

Thanks for comment.I checked that the number of samples is 64.But I know that TIM frequency is decided APB1 / ((PSC + 1) * (Period + 1).Is this wrong?Counter period of yours is set 250.So, TIM frequency is 80MHz / ((24+1) * (250 +1)), 12.749 KH...

GKIM.4 · 2022-05-11

Thanks for comment.I am a beginner about STM32.And, I don't know about HSI or HSE.So, your comment is very helpful.I'll check my workbench.Thank you.

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DAC with Timer

B-L475E-IOT01A Flash Erase & Write

I am using B-L475E-IOT01A1. I'm using B-L475E-IOT01A1 now. I want to do DAC. When I only operate DAC, it works well. However, when using DAC with TIMER and DMA, it does not work. Board itself doesn't work?

I tried getting started following x-cube-cld-gen. However, the project only works with keil or IAR. I want the project that works in STM32CubeIDE. Can I get the project?

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