About Andrew C

Andrew C · 2025-01-27

I had a question regarding the bootloader, more specifically, the for the F429 variant. On app note AN2606, they list the embedded bootloaders. For the F42XXX and F43XXX variants, they list two different bootloader ID's. How do you know which one you...

Andrew C · 2025-01-21

Does ST provide these manuals in a format other than pdf? Maybe an XML or HTML webpage format that you can click through?

Andrew C · 2019-03-29

Is there a way to have spi just send an abnormal number of clock cycles as opposed to just 8 cycles at a time? Is bit banging the only way? Can the LL library be configured or coded to do such a thing?

Andrew C · 2019-01-04

I am trying to set up a timer go to a one shot timer that goes to the DAC update command (to output data that was written via DMA). I am little confused on how to set everything up. I want to set up timer 1 to go to timer 2 and timer 2 will be a one ...

Andrew C · 2018-11-26

I have a question with regards to DMA. When I do transfer, do I have to re-transfer once I finished transferring my data to the DAC? I am trying to just have go through the same points over and over again, so it could be a time saver if i could do th...

Andrew C · 2019-01-04

Awww that helped a lot. I thought the ITRx inputs were open to any TRGO. That makes much more sense. Thanks!

Andrew C · 2018-11-26

OK, I got...turns out I was missing lots of code enabling more DAC to DMA things. Thanks!

Andrew C · 2018-11-26

Thanks....So I tried doing DMA, but it outputs a random pulse and then nothing happens. I think the values I am feeding it do nothing because the waveform looks the same no matter what. You guys mind taking a look at my code to see what i am doing wr...

Andrew C · 2018-10-31

Thanks! One more question. If I wanted to do DMA to the DAC, do I write to the DMA buffer instead of the DAC buffer? if I understand correctly, I have to map the DMA stream to the DAC buffer register?

Andrew C · 2018-10-31

I see, the buffer is something different. I thought the DAC had to go through a buffer. That 200mV offset if pretty big.....I was pretty confused about the trigger. Not sure why you would even use it, but is in in the API and the demo code as well.

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Some Bootloader questions

MCU manuals/api as an XML or HTML instead of PDF

SPI with non standard clk cycles.

STM32F429 and Controlling a timer to control another timer that is a one shot to update the internal DAC.

Question about looping a DMA transfer to the internal DAC

Re: STM32F429 and Controlling a timer to control another timer that is a one shot to update the internal DAC.

Re: Question about looping a DMA transfer to the internal DAC

Re: Question about looping a DMA transfer to the internal DAC

Re: LL Library, CubeMX and DAC not working (F429) and do we really need the software trigger?

Re: LL Library, CubeMX and DAC not working (F429) and do we really need the software trigger?