Nuvoton M480: Some SPI fixes using test shield#467

Merged

multiplemonomials merged 6 commits intomasterfrom

dev/m480-testshield-spi-fixes

Jun 2, 2025

Commits on May 15, 2025

FIx M480 word size issues, implement extra functionality
multiplemonomials
committed

Commits on May 18, 2025

Fix spi_init() not freeing DMA channels, causing DMA to get stuck
multiplemonomials
committed

Commits on May 23, 2025

Fix spi_abort_async leaving flags set that will cause the next transfer to fail
multiplemonomials
committed

Commits on Jun 1, 2025