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The Hercules microcontroller family has a programmable timer coprocessor. In this post, I'm making it simulate an extra SCI / UART channel. With read and write interrupts. I did this exercise for a fellow member on the TI e2e forum, Praveen. He got most of it working, except the interrupts.It's 100% based on the application note UART Implementation Using the N2HET, but ported to one of the smallest controllers in the Hercules family - the TMS570LS04x -  that has a single SCI / UART con ...

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