I am working with the DMA features of RP2040 and find the RP2040 Datasheet a bit lacking with the description of DMA ring_size.
Could someone help by explaining ring_size?
RING_SIZE: Size of address wrap region. If 0, don’t wrap. For values n > 0, only
the lower n bits of the address will change. This wraps the address on a (1 <<
n) byte boundary, facilitating access to naturally-aligned ring buffers.
Ring sizes between 2 and 32768 bytes are possible.
Could someone help by explaining ring_size?
Statistics: Posted by sk8board — Tue Nov 05, 2024 2:20 am — Replies 0 — Views 29