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Does any of this mean anything to you?
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Nope. If I get errors with Quartus I generally delete all the generated files and re-run a Tcl script to build the design again from scratch.
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See attached for the signaltap settings
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The attachments are resampled too small. I'm not sure if they are what you uploaded, or whether the web interface resampled them. Try to upload a zip with the images, rather than as .jpg.
Although, I should not need to look at the images - you should.
What are you looking for? You need to check the baud rate! For example, if I look on an ASCII chart for the hex value 0x55 I see that it is a capital U. If I hit capital U, and then look at SignalTap II, I can measure the bit period in units of the SignalTap II clock, and from that I can confirm the baud.
That is what you need to do.
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again, this sorta code worked ok for jtag_uart. usb_uart cant be that much different
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The two interfaces are nothing alike. The fact that it has UART in the name jtag_uart is completely bogus. Its not an asynchronous UART, its a synchronous JTAG interface that implements a fake UART by polling at a regular basis.
Cheers,
Dave
Honored Contributor
