Comments (6)
(Memory writing of code)
from ch32v003fun.
Is this related to debugging? Because there's no caches on this chip, so the only things you could be fighting with memory fences would be prefetch queues, etc.
from ch32v003fun.
I have not yet had an issue when debugging, but when I modified code in RAM, it was required. There is definitely some kind of cache.
https://github.com/cnlohr/ch32v003fun/blob/master/examples/self_modify_code/self_modify_code.c#L50
Without this line, things don't work right.
from ch32v003fun.
Fetch of next instruction happens before the store is commited, most likely.
Shouldn't it be fence.i
, btw?
from ch32v003fun.
I will have to experiment to see what is required.
from ch32v003fun.
It looks like this has not been and likely will not be an issue. I was worried something may be janky with debugging.
from ch32v003fun.
Related Issues (20)
- Wrong definition of funPinMode? HOT 2
- FUN_HIGH and FUN_LOW behave reversed for funDigitalWrite HOT 1
- Convoluted UART_BRR calculation HOT 3
- Redundant `blink[_raw].bin` files source controlled in repo? HOT 11
- TODO For new updates
- Configurable RAM sizes for V20x, V30x HOT 8
- Compilation results in no code HOT 1
- Make minichlink print flash amount HOT 1
- Make semihosting printf speed along if it times out.
- Empty LD file on missing build tools HOT 2
- prebuilt blink.bin example doesn't seem to work on a CH32V003 board HOT 1
- PWM 8 KHz 16 bit HOT 11
- Onewire slave
- CH32V003A4M6 SPI? HOT 2
- Is this board right for me? HOT 5
- Are there defined symbolic constants for AFIO_EXTICR register values? HOT 5
- minichlink not detecting esp32 programmer on MacOS. HOT 1
- DISCUSSION - Could this run Klipper ? I think it really could omg HOT 8
- Why does my code stop when I connect minichlink terminal? HOT 8
- v30x blink example don't run if TARGET_MCU_PACKAGE sets to CH32V307VCT6 HOT 6
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