Hmm.. I still can't make the software usart to work. This time I exchange BARCODE to hardware, PC to software. Now the PC part can't even start. my terminal freeze after sending character
Help me on ...
Now I've moved on and replaced rs232 with a bluetooth module. But the code below doesn't work. It should TX back whatever I type at PC. It only works if there are no delay instructi ...
Great! Now I see the problem.
But it now lead to another confusion. I've used the method above, it works only if I do not add any other instruction in it. Else, there are characters will be missed. I ...