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by narrob
Sat Jan 07, 2023 4:28 am
Forum: ESP-IDF
Topic: ESP32-S3 SDMMC not running 40Mhz on 4.4.3
Replies: 0
Views: 746

ESP32-S3 SDMMC not running 40Mhz on 4.4.3

Using ESP32-S3-N8R2 with SDMMC 4-bit mode. It runs fine on 20 MHz SD Mode when compiling with 4.4.3. Fails when trying to up it to 40 MHz. The same exact board & code runs 40 MHz when compiling with v5.0 or Master branch. On v5.0+ it run 40 MHz with no issue every reset. External Pull-ups are in pla...