TAS5825PEVM: Can we use the TAS5825MEVM to debug the TAS5825P?

Hi Switch,

It depends on what you want to debug. The two devices are pin 2 pin, but the DSP of the devices are completely different. The TAS5825P uses the hybrid-pro algorithm for class-H control while the TAS5825M has smart amp. The TAS5825MEVM does not have the class-H boost controller that the TAS5825PEVM has and needs the purepath motherboard to work. This means that you will be unable to debug class-H outside of measuring the GPIO output. You would also need to configure the motherboard to give you your clocks. If you need to do this for debug and cannot get a TAS5825PEVM, then these are the steps that should be able to run the device. I would still recommend to get a TAS5825P EVM though.

1) Without connecting to an EVM, open the TAS5825M GUI

2) Select stereo (2.0) and go to the Tuning and Audio Processing menu.

3) Select the Base/Pro (2.0 48k) process flow. This should be the third column. 

4) Click the I2C button in the bottom of the menu. Go to the Log option in the I2C window that opened and click the green circle to begin logging I2C commands

5) Click the USB In icon in the top right of the main GUI. Select whichever input you want to use. You should see some I2C code being written in the I2C window opened in the previous step

6) Copy the I2C commands from the I2C window. I recommend saving this somewhere.

7) Close out of the GUI and power on and connect the EVM with a TAS5825P on it

8) Open the TAS5825P EVM GUI. Once selecting your speaker config and connecting to the EVM, open the I2C Window

9) go to the I/O menu in the I2C window and paste the code from earlier

10) run the code. You should now be seeing your I2S clocks using the test points on the EVM

11) You should now be able to use the TAS5825P GUI as needed to work with the device.

Regards,

Ramsey