About bsakas

bsakas · 2023-12-03

Hello,I am verifying timer functionality on an STM32F303K8 Nucleo development board. After generating an update event, the counter register does not update immediately - in downcounting mode, it takes several nops for the counter to read the same as ...

bsakas · 2023-06-23

Hello,I am familiarizing myself with the SPI controller on a NUCLEO-F303K8 development board using the CMSIS device headers. I have written a program to send and receive a single byte using polling or interrupts. While functionally it appears correct...

bsakas · 2023-05-08

Hello,I am currently trying to set up a minimal example of using DMA for ADC conversions on a NUCLEO-F303K8 development board. I'm using the CMSIS device headers rather than the HAL, so I apologize if my issue is due to misunderstanding something in ...

bsakas · 2023-12-03

Great, the read did in fact make the correct count observable immediately. Sysclock was HSI at 8MHz with no prescalers on any bus clocks, so everything at 8MHz. I've had issues similar to this before where a read after write flushes the write buffers...

bsakas · 2023-06-23

Thank you, this document was very insightful and exactly what I wanted to know more about.I forgot to consider a DMA transfer as well. I set up a routine to use the RX DMA channel and transfer complete interrupt to transmit and receive a byte, which ...

bsakas · 2023-06-23

I have only used the HSI as system clock in my projects, so I would need to look into how to use the PLL. However, according to JW's response, if I ran the CPU at 72MHz and SPI at 36MHz, I would see delays proportional to the delays above (just scale...

bsakas · 2023-06-23

Thanks for the detailed response; I figured there was a lot of complexity that I made too many assumptions about. I was primarily looking at the disasm when I made the post (just posted the C source because I don't know if people want to see the asm,...

bsakas · 2023-05-08

Thank you very much! I figured it would be a detail I overlooked. Works flawlessly now.

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Timer update generation delay

SPI timing

How can I configure DMA to transfer an ADC sample triggered by a timer?

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Re: How can I configure DMA to transfer an ADC sample triggered by a timer?