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USB to serial converter timing issues
dwillmore edited this page Sep 12, 2019
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In Issue #4, a problem with verifying LGT8F328P-SSOP20 boards was encountered. Programmers based on the FTDI chip can program (write and verify) and verify boards. Using a CH341 based USB to serial converter board could write, but not verify.
Captures of the programming transaction were captured. They show signifigant timing differences between the FTDI and CH341 converters.
Put links to the capture files here. Also add a few images of Pulseview screens.
Let's hope we come up with something.