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Re: Serial device driver problem.


"Dennis Ehlin (ECS)" wrote:
> 
> When i do a serial_read (located serial.c) everything seems to work ok, and  i get to the
> cyg_drv_cond_wait(&cbuf->wait) line and it stops there to wait for the cbuf->wait signal. ok.
> 
> Then i generate a serial receive interrupt and the serial_rcv_char function is called,
> which sends the cbuf->wait signal with the line cyg_drv_cond_signal(&cbuf->wait).
> 
> But nothing happends?, the cyg_drv_cond_wait(&cbuf->wait) never continues, as if it never gets the
> signal.

Perhaps it did get the signal but hasn't read all the bytes requested (the
*len argument).

Jifl
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