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Luka (@Keno)

EE student interested in embedded systems

Re: UART communication with ACK/NACK error handling

Reply posted 3 years ago (03/25/2021)
No, its not first design, but I'n not "native" in these waters just yet either. I know shorting output directly to either of power supply pins is stupid and can...

Re: UART communication with ACK/NACK error handling

Reply posted 3 years ago (03/24/2021)
One reason for choosing pull-ups is that I chose to simulate framing error with breaking physical connection of transmission line from transmitter to receiver. However...

Re: UART communication with ACK/NACK error handling

Reply posted 3 years ago (03/24/2021)
Well, that is obviously a mistake. Thanks for reminder!Why do you think pull-up is not required? Might be useful in case of microprocessor reset (or programming)...

Re: UART communication with ACK/NACK error handling

Reply posted 3 years ago (03/24/2021)
For now, I only have to find what is the main problem here; why isn't the program responding as programmed. After I find, where is the catch, I can then move on...

Re: UART communication with ACK/NACK error handling

Reply posted 3 years ago (03/24/2021)
Okay, I agree with you, but this is early version of this program - for start I was only trying to realize some basic error checking (I read somewhere about ACK/NACK...

Re: UART communication with ACK/NACK error handling

Reply posted 3 years ago (03/24/2021)
Can you elaborate slightly more on what "keep alive" and "broken channel" word of control mean?I think I understand what "word of reception" control means - just...

Re: UART communication with ACK/NACK error handling

Reply posted 3 years ago (03/24/2021)
Regarding volatile, I will try and understand why is needed there and use it properly, then. float is only for generation of delay in main() (so characters of...
IDEA: I'm trying to establish firm communication between a transmitter and receiver; firm in a sense of some basic error handling. I'm trying to implement ACK(acknowledgement)/NACK(negative-acknowledgement)...

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