[Oberon] FPGA - nRF24L01 connection

[Jörg]

Tomas

Don’t know whether it helps, but according datasheet chapter 6.4 you should wait at least 170us after RX on until you can trust RPD.

Jörg

> Am 12.04.2018 um 12:23 schrieb Tomas Kral <thomas.kral at email.cz>:
> 
> Hi,
> 
> As advised by Paul, I have tried carrier test example, as I am still
> unable ping payloads between RPI and Oberon.
> 
> On RPI, I run a simple example `RF24' program, it steps through all 126
> channels, and listens for 128us in each, incrementing carrier count
> if detected any on that channel.
> 
> On Oberon I just execute `NRF.Ping' command, that just tries to send
> 32 byte payload over the wireless.
> 
> Carriers detected in channels, are reported as a single hex digit
> From left to right, 0..126
> 
> On channel 5, SW := {1,0,0,0,0,0,0,0}; 
> 000033400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
> 000022300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
> 0000123000000000000000000000000000000000000000000000000000000000000000
> 00000000000000000000000000000000000000000000000000000000
> 
> On channel 85, SW := {1,1,1,0,0,0,0,0};
> 000000000000000000000000000000000000000000000000000000000000000000000000000000000000321000000000000000000000000000000000000000
> 000000000000000000000000000000000000000000000000000000000000000000000000000000000000123000000000000000000000000000000000000000
> 000000000000000000000000000000000000000000000000000000000000000000000000000000000000435000000000000000000000000000000000000000
> 
> I am surprised to see that signal carrier is detected in the spectrum
> of channels, 4,5,6 and 84,85,86 with similar count???
> 
> Many thanks for any insight.
> 
> 
> -- 
> Tomas Kral <thomas.kral at email.cz>
> --
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