Using pktuart with 7i80hd

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7 years 1 week ago #148148 by sneci
Replied by sneci on topic Using pktuart with 7i80hd
Hi Peter,

the checking of frame_to_send works fine!
Thanks

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7 years 1 week ago #148207 by sneci
Replied by sneci on topic Using pktuart with 7i80hd
Two things altered in this version:
-- checking tx-fifo overflow
-- dummy message to enforce the last stuck frame

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7 years 1 week ago #148338 by PCW
Replied by PCW on topic Using pktuart with 7i80hd
I did a bunch of testing the firmware on Friday and I cannot find any issue with the last
packet. I suspect its a driver bug of some kind (maybe a race, or read order, or duplicated
read problem)

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7 years 1 week ago #148340 by sneci
Replied by sneci on topic Using pktuart with 7i80hd
it is interesting that rx_fifo counter 0 but the frame is still there. The next frame pushes it out.
I'm going to do that if the message is more than 1 frame, I'll send a short dummy message that I will drop.

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7 years 1 week ago #148341 by sneci
Replied by sneci on topic Using pktuart with 7i80hd
Better yet :) not a standard message but 0 long blank message (with only one short int 0 content). This is swallowed by a handler, the client doesn't even know about

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7 years 1 week ago #148343 by PCW
Replied by PCW on topic Using pktuart with 7i80hd
My suspicion is that the driver does an extra read, perhaps of the RXcount register

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6 years 11 months ago #150357 by sneci
Replied by sneci on topic Using pktuart with 7i80hd
The interface card is ready.
On the card, an xmega communicates with the 7i80. The previous loop test runs fine. As time permits, software development for the application comes.

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