[En-Nut-Discussion] at91sam7x ahdlc

[Szemző András]

Hi,
 
I have a half-ready/test ahdlc driver for at91sam7x, wich is seems more or
less working. ( At least I can get an IP address via GPRS)
My uart1 is connected to the modem with full modem mode, but the driver
works only if I use the uart with normal mode (0),
if I enable 0x03 mode (full modem) it stops working.
 
I read the datasheet, but that isn't mention if I need to use PDC in this
mode. ( I know for HW handshaking at least the receive part needs to use
PDC, 
but for full modem mode I don't know. )
 
So, my question is I need to use PDC for full modem mode? Or is there any
PDC uart driver for sam7x's usart?
 
 
Thanks,
Andras

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