MCF8329A: Controlling the motor speed with I2C communication of GUI

John Lee

Part Number: MCF8329A

Tool/software:

Dear team,

In order to control the motor speed with I2C communication of GUI on EVM board,

I need to set R47 to 25kΩ so that 3.3V is applied to POT(DACOUT/SOx/SPEED_ANA) Pin.

Can you tell me why?

0 Venkatadri Shantaram84961 6 months ago

Hi John Lee,

Speed pin used for entering / exiting stanby or sleep condition in I2C mode.

When speed pin is low and if device is standby mode then even if there is speed command through I2C device will remain in stanby.

Thanks and Best Regards

Venkatadri S

0 John Lee 6 months ago in reply to Venkatadri Shantaram84961

Thank you, I found the solution.

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