ChibiOS Free Embedded RTOS

The reason th2 is getting interrupted between 4 and 5 is you are using the wrong sleep calls for an OS lock section. You should be using an S-Class function like chSysSleepS (I don't think there is an S-Class windowed function). The non-S ones internally lock and unlock, probably undoing your lock. ...

Try this:

It looks to me that or-ing PAL_STM32_OTYPE_OPENDRAIN with the alternate mode should be the solution. That ACK bit looks like the ST is pushing high while the eeprom is pulling low, especially with that spike at the end of it where the eeprom releases the bus.

If the DSO showed the known correct address with a NACK, you are likely push-pulling instead of open-draining the I2C lines. If you are using palSetLineMode, fix it by changing the SDA / SCL lines to something like palSetLineMode(x, PAL_MODE_ALTERNATE(n) | PAL_STM32_OTYPE_OPENDRAIN); Alternatively, ...

What is happening is the sdReadTimeout call is timing out due to receiving no bytes and not modifying your buffer, leaving the "message" string from the reception untouched and still valid. You need to check the return value of sdReadTimeout (which calls iqReadTimeout) which is the number ...

Are any error bits in FLASH->SR set when the failure happens (after erase or program)? Is STRT still set in CR when you clear the PER bit? RM says it clears on transition of BSY1 to 0, but maybe it is delayed a (peripheral) cycle or 2? Test with FLASH->CR = 0 instead. (A reach, but maybe it doesn't ...

Akshai, ChibiOS only zeroes the ".bss*" and ".ramX_clear*" sections on startup. Try putting the array in the ".ram0_clear" section. See rules_memory.ld next to your linker script, and crt1.c a few levels up for how that works. Ram0 is full due to the rest of the free me...

This appears to be an errata. See ES0418 2.6.2, "Writing ADC_CFGR1 register while ADEN bit is set resets RES[1:0] bitfield".

is this thread really the only mention of GD32 on this ChibiOS forum or is that me failing to use search? Anyway a bit confused about https://github.com/psycowithespn/ChibiOS-RISC-V/issues/1 but interested to leverage the progress done here :) Replied to the issue. Do note that the GD32 stuff on th...

Giovanni,

This invite link is expired. Could you make a new one?