Other Parts Discussed in Thread: PGA900
Tool/software: Code Composer Studio
Hello.
I have managed to make the PGA900EVM work as both a 0-10V voltage output (and 4-20mA output), now I need firmware in the PGA900 to link the analog front end to to the analog output using digital firmware.
I downloaded the generic firmware and managed to get a hex file which I loaded into the DEVRAM as instructed but I am not sure how I can test this to see if the generic firmware has been programmed to the pga900.
is there a check I can use to confirm this?
In the case of the 0-10V (or 4-20mA) output.
Question 1.
How do I go about editing the generic firmware to link the analog front end to to the analog output? know in the data sheet on page 123 I have to configure some bits etc for the 0-10V application.
but how do I actually do this in the generic firmware? which files do I edit ? is it the pga900_main.c, pga900_cfg.c? etc. which part of those files needs to be edited?
do you have a simple code for the bridge sensor that I can use as a starting point to make the analog front end link with the back end.
After I have managed to make the above work, I would like to use a my own sensor instead of the bridge and digital pot that is on the evaluation kit. I have so far connected it to Vbrg+, Vbrig-, (one end of J3 and J2), it seems to work fine with the ADC Capture and the programmable gain, but I cannot get the 0-10V output until I manage to link the analog front end with the back end.