About jls

jls · 2024-01-06

Hello, I am using a STM32F334 for a project where I am reading several analog channels, specifically connected to thermistors. I am using DMA to read the analog channels and also sending this data out on UART via DMA. I am seeing some weird jumps in...

jls · 2024-01-16

I changed some of the priorities of the DMA and interrupts and restructured the code a little bit and was able to get the problem to go away.

jls · 2024-01-06

Hello, thanks again. I am sending 48 bytes of data every 150 iterations of the loop. This is at 115,200 baud rate. This should take about 3.3 ms for the data to be sent out. Since my loop speed seems to be around 5000 Hz, I should have around 30ms be...

jls · 2024-01-06

Thanks for the reply. I can try that, it seems like a good idea. The thermistor data is real though. I heated it up at the start with hot-air and this data was taken from when it was naturally cooling in the ambient air. I will see if I can send o...

jls · 2024-01-06

Thanks for your reply. I'm not sure why there is this intermittent longer interval in UART sending. I just have one main loop with the same calculations running and then the UART DMA transmit is sending every 150 loop iterations. I also have anothe...

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