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by JanDupal
Thu Feb 15, 2018 9:29 am
Forum: General Discussion
Topic: Problem writing to card in SPI mode
Replies: 1
Views: 7764

Re: Problem writing to card in SPI mode

Hi Marek, we you able to resolve the issue? We’re having very similar issue — timeouts or CRC fails when writing larger files (about 2 MB) to microSD card in SPI mode. Decreasing write size (1 kB in your case) to 256 B and decreasing SPI clock (via sdmmc_host_t.max_freq_khz ) seems to help a bit — s...