Debugger is showing signed value for unsigned char

[Guven47]

Hello guys,

I have a problem like this. How can I fix this problem

[Guven47]

I tried but it didn't work.

[Guven47]

[Karl Yamashita]

Here are some things to try.

1. Create a new project with the same variable. Then in the main while loop, just increment one of the array index. Add a HAL delay of maybe 10ms. Then watch the Live Expressions to see if you see if the value go negative.
2. Create a new project and initiate all the peripherals. Then copy your source files to that project and try again.

• Is your array update inside an interrupt, outside of an interrupt, or both?
• Show your code that updates the array.
• What version STM32CubeIDE are you using?
• Which STM32 uC or development board are you using?

[SofLit]

Again, could you please attach your project as we could reproduce the behavior?

[AScha.3]

Just to check:

can you write the variables not by pointer->array - only 3 bytes, like this:

uint8_t  txData0, txData1,txData2; 

Then show, what in debug is shown... for txData0 , etc...