TMS320F28377D: TMS320F28377D

Ashrumochan NathSharma said:

Part Number: TMS320F28377D

Hi friends,

I am doing can interface  in TMS320F28377D Dev Board Rev1.1 and I have taken the reference code from C2000.

The example code can_external_loop-back.c file i modified as per my requirement I have to communicate with SOC board.

SOC board having two on board transceiver so I am using one for TMS320f28377D(I  have taken the TX and RX wires from the transceiver to my board pin 80 and 82) other for SOC board.

But while transmitting their receiving end very first time no data is available.After 28377D reset SOC is able receive the datas

but only once next time SOC only reading constant those datas.

While I am modified as only receiver i am not getting the interrupt in ISR?

I read status reg LEC is coming 7 and sometimes 1.How it is happening?

Can anybody please help me how to find out the issue?

Here SOC means microsemi's FPGA based ARMcortex+DSP dev Board.

Reagrds,

Ashru

Thanks Mr Hareesh for responding.

Now I am testing on TMS320F28377D Developemnt board and using the canloopback.c example code.

Its working fine and i am able to read the data as it is loopbacked. On Tx pin when I am probing I am getting very low voltage

output so I probed on Rx pin It is giving correct 3.3v and data is able to monitor.

Can you please tell me in which manner data is being transmitting and receiving and how the frame format is filling?

In the example code canloopback.c i am sending 8 bytes of data and i am getting the pulses as below.

total time=206microsec

i bit time = 2.03microsec

data = 000001000001010010011111011111011111011111011111011111011111011111011111011111011111011111011111011100110001010

This is the output as i am transmitting

bute[8] = {FF,FF,FF,FF,FF,FF,FF,FF};