CCS/TRF7960A: No response on the MISO port and and no tag detection

Tool/software: Code Composer Studio

Hi,

I tried to run an adapted version of the code given with the DLP-TRF7970A, to make it work with an TRF7960A associated with a MSP430F5529.

The thing is I don't have any response on the MISO port and the IRQ signal seems unusual.

I already changed the polarity of the serial clock on read/write direct command but as I followed the  the application report on "Using SPI Interface with TRF7960",

I couldn't quite understand the next instruction about the IRQ Status Register Read, I tried to send the 0x6C command at each command sent but I had no more RF output  after making that change.

Also, does the fact that the FIFO in the 60A is 12-bytes long and not 127-bytes long interfere with the reading protocol ?

Here a pic on the signals that I obtain :

Blue : IRQ

Red : RF output

Green : MOSI

Yellow :MISO

Regards,

Samy