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SPI Bus set up TMS320f28069

Marco_Andarcia
Intellectual 370 points

Other Parts Discussed in Thread: TMS320F28069

Hi, 

I am using my TMS320f28069  SPIb bus to talk to my AD9952; however I am having troubles with my MCU communicating with my slave device(AD9952).

I Set up the pins for the SPI-b Bus using the functions from the  F2806x_spi.c  file, and I was wondering if for the MISO and MOSI pins I need to enable the pull up resistor. So far I can see all the data bytes coming out of the SPI-bus on the processor on my oscilloscope and the baud rate if far lower than the maximum supported by the salve device.  

I have 4-Wire set up as a master device.I did try playing with the clock polarity and phase (went through mode0-4) and still nothing happened. I think the problem is in the other end (the slave device) but I just wanted to ask  if maybe I am overlooking something on this side.


Thanks in advance.  

but no nothing happens on my slave device.