I am using a combination of MSP430F2619 and CC2420 to initiate wireless data transfer. Right now I am just trying to run the test program which in the CC2420 datasheet tells you to write the following values to the following registers.

MDMCTRL1: 0x0508
CC2420_DACTST: 0x1800
then issue a STX_ON command strobe which tells the CC2420 to transmit what is in it buffer

My code is as follows:

SET_VREG_ACTIVE(); //sets VREG_EN pin high to wake up CC2420
halWait(1000);
SET_RESET_ACTIVE(); //resets registers of CC2420 to default
halWait(1000);
SET_RESET_INACTIVE(); //sets RESET pin to high (active low)
halWait(500);
FASTSPI_STROBE(CC2420_SXOSCON); //turns on crytal oscillator
halRfWaitForCrystalOscillator(); //waits for oscillator to stabilize

FASTSPI_SETREG(CC2420_MDMCTRL1,0x0508);
FASTSPI_SETREG(CC2420_DACTST,0x1800);
FASTSPI_STROBE(CC2420_STXON);
for(;;)

I have verified the SPI functionality between the MSP430 and CC2420 via a logic analyzer and I know my FASTSPI_SETREG function works because I am able to write to a register on the CC2420 and then read it back with the correct new values in the register. I have also double and triple checked that my register addresses and command strobes are defined correctly. These commands should intialize the CC2420 to a built in test mode that simply transmits a random unmodulated carrier but when I try to view the transmission on a spectrum analyzer I dont see anything.

Has anyone ever run into similar problems with this chip (CC2420) or see anything in my code that is missing or should be done differently? I can post the code for each function if anyone wants to see exactly what I am doing. Also, I know that this is more of a CC2420 question and not a MSP430 question but I know that other people on this forum are working with this and similar transceiver chips so I thought I would post here. Any help is very much appreciated.
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