CCS/TMS320F28379S: pwm12 mux2 not output

Mattia Settin

Prodigy 50 points

Part Number: TMS320F28379S

Tool/software: Code Composer Studio

Dear all,

I working with TMS320F28379SZWT micro controller and PWM output signals.

I am able to output the pwm1a (on GPIO0), pwm1b (GPIO1) and so on to the pwm8b (on PGIO15), and it works fine.

here the code for pwm6:

GpioCtrlRegs.GPAPUD.bit.GPIO10 = 1;    // Disable pull-up on GPIO10 (EPWM6A)
GpioCtrlRegs.GPAPUD.bit.GPIO11 = 1;    // Disable pull-up on GPIO11 (EPWM6B)
GpioCtrlRegs.GPAMUX1.bit.GPIO10 = 1;   // Configure GPIO8 as EPWM6A
GpioCtrlRegs.GPAMUX1.bit.GPIO11 = 1;   // Configure GPIO9 as EPWM6B

The problem appears when I try to use the pwm on GPIO22. I not able to output the pwm12 on GPIO22.

I thing that the problem is related to GPAGMUX2

Can someone help me ?

thanks

Regards

over 7 years ago

0 Veena Kamath over 7 years ago

TI__Mastermind 32655 points

Hi Mattia Settin,

There are two registers that needs to be set : GPAGMUX2 and GPAMUX2. Have you configured both of them? You can find the values to be configured in the device datasheet.

Regards,
Veena

0 Whitney Dewey over 7 years ago

TI__Guru 54675 points

GpioCtrlRegs has write protection as well, so make sure you have the required EALLOW in your code before you try to set the registers.

Whitney

C2000™︎ microcontrollers

C2000 microcontrollers forum

CCS/TMS320F28379S: pwm12 mux2 not output