[sigrok-devel] [PATCH] libsigrokdecode: Simple decoder for ST7735 TFT controller

[Aleksander A. <af...@gm...>]

Hello everyone,

Proposed patch adds decoder of ST7735 TFT controller protocol. Currently
this decoder only allows to distinguish commands and data, and also shows
command names and their short descriptions.

Here is a screenshot:

https://afiskon.ru/s/43/ea50416b0f_temp.png

In this context I would like also to answer the question asked in IRC:

11:33 < uwe_> afiskon: sigrok-cli cannot throw exceptions, it's C code. do
you mean a Python exception or an error code or such? if yes, under which
circumstances? sounds like a bug

The circumstances are:

$ sigrok-cli -i ~/temp/st7735-minimal.sr \
  -P 'st7735:cs=CS:clk=SCLK:mosi=MOSI:dc=DC' \
  -A 'st7735=description'
...
st7735-1: CASET: Column address set
st7735-1: RASET: Row address set
st7735-1: RAMWR: Memory write

Note that the description of the last command RAMWR was successfully sent.
This is because unlike PulseView sigrok-cli makes 'self.wait()' to throw an
exception instead of hanging. The decoder interprets the exception as an
end of stream and decodes buffered data.

-- 
Best regards,
Aleksander Alekseev