Hi, I suspect that my code with Serial1.write() is blocking due to having 0 tx buffer. PaulZC pointed out the following: https://github.com/sparkfun/OpenLog_Art … 1617442577 What should I be modifying so that the tx buffer is nonzero?

V1.x The V1.x library is using a separate TX buffer to store the bytes to be sent. In V1.x, which is interacting directly with the HAL (Hardware Abstraction Layer), it will get infomration in return about the number of bytes written in the TX-FIFO and keeps looping until ALL bytes that have been w…

Paul, Thank you for the explanation and a solution. Quick question before I jump in. Looking at example 7, it looks like I can continue to use hardware serial while utilizing software serial. Would you recommend that I keep my current setup as is for rx using hardware and use software for just tx? …

The SoftwareSerial is working in parallel to the hardware/UART. So yes you can do what you propose. Another, maybe easier, test you can do is to write to serial1 one byte aa time from your sketch. So do not write the complete buffer from you sketch. By doing one byte at a time, it first checks and …

Openlog Artemis: Serial1.AvailableForWrite always return 0

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Hjy July 6, 2023, 4:00am 6

Thank you, Paul. I’ll try the one byte writing.

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Openlog Artemis: Serial1.AvailableForWrite always return 0

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