CCS/TMS570LS1224: TMS570LS1224 with HET PWM generation

Ahmad ali

Intellectual 885 points

Part Number: TMS570LS1224

Tool/software: Code Composer Studio

Hello ,

I tried to run HALCoGen (example_hetPwm.c) as a study project.

But It doesn't work, the oscilloscope shows no signal , could anyone help??

over 6 years ago

0 Miro over 6 years ago

TI__Mastermind 21425 points

Hello,

Please follow the instructions in HALCoGen->Help->Help topics->Examples

In Step 3 for Configuring pin as output go to HET1->Pin 8-15 Tab and check DIR check box for HET1[8].

Signal will appear at connector J8.3

0 Ahmad ali over 6 years ago in reply to Miro

Intellectual 885 points

thanks so much

0 Ahmad ali over 6 years ago in reply to Miro

Intellectual 885 points

Hello Miro,

I had tested the code to generate a PWM signals with a 80 MHz and different periods (900 µs ,999 µs ) and 50% duty cycle on HET1 pin 8. it shows the accurate measurements on oscilloscope.

but if i increase the periods to above of 999µs (1ns,10ns ,....) it shows incorrect measurments.

do you know the maximum range i can reach? do i need to change the frequency ?

Best Regards,

0 Miro over 6 years ago in reply to Ahmad ali

TI__Mastermind 21425 points

Hello,
Please take a look at this thread:

Arm-based microcontrollers

Arm-based microcontrollers forum

CCS/TMS570LS1224: TMS570LS1224 with HET PWM generation