[Libre-soc-bugs] [Bug 517] Define JTAG pins and set up with litex for ulx3s85f

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=517

--- Comment #129 from Cole Poirier <colepoirier at gmail.com> ---
(In reply to Luke Kenneth Casson Leighton from comment #126)
> _________________________
> | Pin # | Name |  Colour  |
> |-------|------|----------|
> |   1   | GND  |  Black   |
> |   2   | CTS  |  Brown   |
> |   3   | VCC  |  Red     |
> |   4   | TXD  |  Orange  |
> |   5   | RXD  |  Yellow  |
> |   6   | RTS  |  Green   |
> |_______|______|__________|
> ft232 pin and wire colour table converted to jtag signal names:
> 
>  _________________________
> | Pin # | Name |  Colour  |
> |-------|------|----------|
> |   1   | GND  |  Black   |
> |   2   | TMS  |  Brown   |
> |   3   | VCC  |  Red     |
> |   4   | TCK  |  Orange  |
> |   5   | TDI  |  Yellow  |
> |   6   | TDO  |  Green   |
> |_______|______|__________|
> 
> 
> how are people supposed to read these and understand that they are related?
> 
> eyes flick ftom one table to the other and miss a row.
> 
> also you missed the point that the numbering is completely different.
> 
> look at the DCD FT232 photo. does the numbering match?
> 
> 
> this is how mistakes are made.

It’s all there. If you do not like how it has been done please help and modify
it to suit your needs. Given that we have mere days until the deadline why
don’t you contribute to this instead of unhelpfully pointing out things you
would do differently and saying they are wrong but doing nothing to rectify
this and actually helping.

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