General • Re: Differences in DMA behavior between RP2040 and RP2350

I may be talking nonsense, but when I set the DMA with the DMA_SIZE_8 flag I correctly retrieve the bytes individually when I fetch them from an uint8_t[] array.

Thanks for the info, I'll give it a try with the M33, but I'll have to use another instruction than LDR? Would it be LDRB ? I don't know the ARM instruction set at all.

I need to go very fast, with as few cycles as possible to keep a high restitution frequency. I'd rather waste RAM (storing a byte in 32-bit cells) than lose a cycle.

Thanks for your interest!

Statistics: Posted by psyke — Tue Oct 15, 2024 10:50 pm

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