ESP32 Flash SPI Speed Issues
Posted: Sat Sep 21, 2019 5:50 am
Hey everyone,
I have an ESP32-WROVER-B on multiple custom PCBs with an issue I can't explain:
- If I set the menuconfig -> Serial flasher config -> Flash SPI speed to 26, 40, or 80MHz I can flash an image successfully but I will receive a checksum error when the device reboots
- If I set the menuconfig -> Serial flasher config -> Flash SPI speed to 20MHz everything seems to run OK
Is this SPI flash speed expected? If not, any ideas what might cause my issues?
Thanks!
-AD
I have an ESP32-WROVER-B on multiple custom PCBs with an issue I can't explain:
- If I set the menuconfig -> Serial flasher config -> Flash SPI speed to 26, 40, or 80MHz I can flash an image successfully but I will receive a checksum error when the device reboots
- If I set the menuconfig -> Serial flasher config -> Flash SPI speed to 20MHz everything seems to run OK
Is this SPI flash speed expected? If not, any ideas what might cause my issues?
Thanks!
-AD