Picomite and AD9833 (SigGenerator)

Author	Message
redtif Newbie Joined: 15/06/2022 Location: Germany Posts: 7	Posted: 05:41pm 15 Jun 2022       Hello, I'm trying to port the SigGenerator to a Picomite. Changes are done and the programm runs, but only the AD9833 doesn't work, no output. The AD9833 works correct in a testcase on an Arduino nano with bitbanging SPI. So the only difference is in handling the clock signal of SPI. Picomite let the CLK go low in idle mode and comes up only short before sending data. The AD9833 datasheet states the CLK has to be high when FSY (CS) goes low. This is not the case on Picomite. I modified the testcase in the way the Picomite SPI communicates and the AD9833 has no output. Does the SPI on Picomite works as designed? Any workaround to get the AD9833 work? Any help is appreciated!  Tks Regards redtif