hi to everyone,
i'm trying to set a communication with CAN interface on a LF2406A dsp, but =
till now it doesn't work.
When i try to transmit a standard data frame, i get an ACK error, bit 3 of =
error status register is set, transmit error counter is incremented by 8, a=
nd the transmitter send an error frame.
The configuration i used is: Mailbox 5 for transmitting the message, Mailbo=
x0 for receiving message, an CANTX pin connected directly to CANRX pin, wit=
hout using a CAN tranceiver and connecting it to a real CAN bus line.
I've also acquired the transmitted message with an oscilloscope, and this m=
essage is correct till the ACK field, where ACK slot bit, transmitted as 1 =
(recessive) isn't set to 0 (dominant). After this an error frame is transmi=
tted.

my question is: Why i cannot receive the data frame propelrly? and CANRX ca=
n't set to 0 the ACK slot bit?

Emanuele

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