Hello,

i try to run BeRTOS on an netduino plus board. It is simliar to AT91SAM7X-EK. The Interface seems to work but no data are transmitted.

The DM9161AEP is connected in the same way on both boards. On difference is in the generation of TX_CLK The Atmel Board has different ways to generate this Clock and netduino has an connection between TCX_CLK an PB0. A 50MHz Impulse must be generated on this pin.

In eth_ar91c.h this pin is defined as PHY_REFCLK_XT_BIT but never beeing used anywhere. Other Implementations using Functions like SetMdcClock.

Where is the best place to implement an SetMdcClock function? Where is the best place define the usage of this function to make the code portable to other Boards?

I am new to BeRTOS and ARM development.

Hi Frank,
for what I can see, the wiring of the PB0 pin on both boards is the same.

On the AT91SAM7X-EK there are 3 jumpers: S23, S25 and S26 which by default set PB0 to be connected to DM9161 pin 22 (TCX_CLK). This pin it is connected in the netduino 2 plus board in the very same way.

Have you tried to update to the newest version of BeRTOS?
Maybe you simply have a bug in the code.