Part Number:EM1402EVM
Hi,
I have not been able to get the EM1402EVM board to work (respond to commands and report status etc back to the microprocess).
I believe I have the batteries hooked up properly.
I can see commands being sent to EM1402EVM, However, there is no communication (on the scope the EM1402EVM Tx line remains high with no data) back to the microprocessor.
First question, what would cause the EM1402EVM not to communicate ? I see the wake line toggle (is there a minimum time)?. Could I have received a bad board?
The fault line is always low. Since there is no communication I don't know what is causing the fault. I don't have any temperature sensors hooked up. Could this cause a fault and the communication to not work. Only one board is used and I have the toggle switch set to single (I did try differential). Do I need to "terminate" the Tx and Rx signals used to communicate with a seond biard?
I am not sure why I don't see any communication and what would cause this to occur.
Any help would be appreciated.
Malcolm