added h4m i2c slowdown

Totoo 2024-10-06 14:53:20 +02:00
parent f0ec66c447
commit 66c53fde68

@ -105,3 +105,7 @@ Firmware starting at version 1.5.4 and onward contain the <a href="https://githu
### Additional notes :
I used to have many frequent “black LCD boot brick” when exchanging binaries compiled with different gcc-arm… version , from 9.4 to 10.3 or 12 . But thanks to @ufokas PR fix pmem -> make backup_ram_t data members volatile [#1135](https://github.com/portapack-mayhem/mayhem-firmware/pull/1135), all those problems are gone , and now I do not have any persistent memory boot problems , so I do not need to go back to any old version 1.4.3 anymore.
## H4 users
If you got any addon plugged in, try to remove it, and power off, wait a bit, and power on your device. If the addon board / module has problems, it can extremely slow down the boot, and the working. (usually happens when the I2C line goes wrong, and each operation have to wait for the timeout)