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LPS Node can't pass the selftest
Posted: Fri Sep 09, 2016 6:38 am
by gwiily
I made a lps node,but when I test the pcb it can't pass the selftest.like the pic.thanks.
Re: LPS Node can't pass the selftest
Posted: Mon Sep 12, 2016 6:57 am
by tobias
Not sure what that means. Have you checked what the code does?
Re: LPS Node can't pass the selftest
Posted: Wed Sep 14, 2016 8:28 am
by gwiily
tobias wrote:Not sure what that means. Have you checked what the code does?
I check the code,maybe the device id is different. I can't find how to change it ,but I ignore the device id,and the lps-node is worked.
Code: Select all
if (dwGetDeviceId(dev) != 0xdeca0130) {
return DW_ERROR_WRONG_ID;
}
Re: LPS Node can't pass the selftest
Posted: Wed Sep 21, 2016 1:32 pm
by arnaud
I was in vacation during this thread but I can answer a bit late:
The first thing the dw1000 driver does is to check the dw1000 chip ID. The most likely cause for failure is that the SPI communication is not working. You should check that your SPI bus is correctly cabled and that the low level communication routines are working.