Hi
My trusty EB-006 remains trusty
The issue was with the breakout board I used to convert the 9-pin D-type to SIL header. The MOSI connection was unreliable, found of course after I swapped SPI from C to D port and loads of other stuff.....
Whilst this was going on I milled a PCB to create a breakout board for the NRF's. However the first one wasn't a success as I accidently used too large a bit for holes and ate away the pad. Next board wasn't a success either as I didn't notice that I'd set the mill for multiple passes and this of course ate this up. Last attempt was a success in terms of milling etc but for one eentsy-weentsy flaw... The traces were "reversed" as I'd screwed up..... Doh..!
Tomorrow I am confident of creating a board..........
Anyway, I followed the "flow" using my analyser and all appears good up until we transmit. I can see the registers being set, and comparing with the datasheet the commands / registers seem to be good. We then send values (e.g. 1, 2, 3 etc) to the Tx Buffer. Then we make CE high (for a min of 10uS) and this should transmit the contents of the buffer. We then "read" the NRF status and if sent we should return a "1". I can see the buffer being set with the value, the CE going high and sending (MOSI) 0xFF (NOP) which clocks MISO. This "return" is always "0".
I'll continue to look when I get a chance, hopefully tomorrow.
Regards
