Has anyone had any luck talking SPI to the GPS chip from Telit called the JF2? I realize its full duplex, so I pull CS low, load the Tx buffer, but for some reason, I cannot seem to read from this JF2 IC.
While CS is low, I tx then I try to read. Then pull CS high and there is no data. I even tried a level shifter since the JF2 is 1.8VDC
Any ideas?
Thanks