Hi,
I'm using a FT232RL in bitbang mode to communicate to a device with a
proprietary protocoll. It has a lot of burst writes, but occasionally
replies with short messages. For those I need reads correlating to
specific clock edges.
The way I intended to do this was:
1. change to BITMODE_BITBANG
2. burst write the data
3. change to BITMODE_SYNCBB
4. ftdi_usb_purge_rx_buffer
5. toggle the clock line a couple of times
6. read the data
7. change back to BITMODE_BITBANG and continue writing
The problem with this solution was, that even after a successful
"ftdi_usb_purge_rx_buffer" call, the buffer seemed to contain data
(>200bytes!). Why is this? For now I clear the buffer manually by
reading it's content.
If you need code I'll gladly try to reproduce this in a simpler
example. The current code is too nested to post here.
Best regards
--
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