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RISCBoy

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Ramp up baud rate in second part of UART loopback, simulation time was far too long. Handle baud-mismatch garbage from behav uart rx in the test script.

Luke Wren · Apr 20, 2019, 10:43 PM UTC

7c8f95c88ce9

Add simple glitch filter to UART RX, and aggressive (long back-to-back) UART loopback test. Added these while debugging the SPI programming shell... turned out to be something completely different

Luke Wren · Apr 1, 2019, 6:26 PM UTC

4c85fdbf64d3

Fix a bug where UART RX falls through idle (I never tested it...) and add a UART loopback test to make sure it stays fixed. Also make UART RX more robust: half a bit time of slack between stop bit sampling and start bit detection, which maintains sync if the TX clock is slightly too fast.

Luke Wren · Mar 30, 2019, 6:41 PM UTC

4c5bb98c4be3