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PGA970EVM: How to download and start firmware

Part Number: PGA970EVM
Other Parts Discussed in Thread: PGA970

After powering up the EVM I didn't see any signal at the output of the LVDT primary driver. I have checked the jumpers - they are in default configuration.

Then I have modified the file pga970_main.c and just added code to toggle the gpio1 pin. After compiling (without errors) I have downloaded the new hexfile to the DEVRAM, enabled the remapping and unreset the microprocessor by clicking on "Digital Interface" ... but NOTHING happens !

After this I have downloaded the "PGA970_FW_Release_1_5_Generic.hex" to the board in the same way - verify was ok - but still NO change of any signals. The only activity I can see is when there is traffic on the SPI lines.

Using the "digital interface" I'm able to toggle the gpios.

I didn't find any docs showing a "step-by-step " guide to generate, download, start and test the PGA970-firmware.

Is there anybody who can help me ? I have no more ideas ...