When I use 9S12ZVM for 24V motor control, external pre-driver used for 24V driver, I want to close GDU high-side driver and just use it as TTL-level PWM output to external pre-driver, how I can do in hardware design and software configuration?

[sunmmyxu]

When I use 9S12ZVM for 24V motor control, external pre-driver used for 24V driver, I want to close GDU high-side driver to reduce 9S12ZVM power comsuption, and just need high-side driver signal  as normal TTL-level PWM output to external pre-driver, how I can do in hardware design and software configuration?

[danielmartynek]

Hi,

Please refer to AN5082 MagniV in 24V Applications, Figure 4.

https://www.nxp.com/docs/en/application-note/AN5082.pdf 

You need to route PWM1 signals to the corresponding PP PT pins in MODRR1[PWMxxRR].

Please note that the MODRR1 register can be write only once in Normal mode.

Regards,

Daniel