nRF24L01 registers trouble

[Alexander Bubnov]

I have 2 moduls from ebay (rfinchina). I write little librarie for nRF24L01 and my msp430. When i start my coard and init spi and try read few register - i have problem. Ican't read 0x0E in status, but i can read 0x1E or 0x1F. I try read few other register and i got it - TX_ADDR and pipe's addr can read default value. I read all register and i found what a half have bob-default value. What is it? Why???

[ovrebekk]

Hi Alexander

Can you share a picture of your module, and maybe a link to the manufacturer page?

Unfortunately many of the cheap nRF24L01+ modules are based on fake nRF24L01+ rip offs, and they might behave slightly differently.

If the chip is authentic I would expect the issue to be related to the SPI communication. Otherwise you should be able to read the default values of all the registers after a reset.

Regards Torbjørn

[Alexander Bubnov]

I'l use arduino+nrf24l01 and my msp430+nrf24l01. And they are work. I transmit small buffer form arduino to msp with my librarie and i can receive and read all data from fifo. But half a registers in start have not default value.

[ovrebekk]

Could you list which registers give you a non-default value, and exactly what you get back?