topic Re: PWM in assembly code in S12 / MagniV Microcontrollers

PWM in assembly code

CristinaMares — Tue, 01 Apr 2014 10:10:25 GMT

Hi, I'm working with an evaluation board CSM-12C32 (HCS12C32) and I'm having some problems using PWM, here is my code:

Entry:

MOVB $01, MODRR

MOVB $00, PWMPOL

MOVB $01, PWMCLK

MOVB $01, PWMPRCLK

MOVB $00, PWMCAE

MOVB $00, PWMSCLA

MOVB $80, PWMDTY0

MOVB $FF, PWMPER0

MOVB $01, PWME

Spin: BRA Spin

But I get nothing in the Bit0, Port T.... Is there anything else I should set or configure besides MODRR to enable PWM in Port T??
Please help me
Regards

Re: PWM in assembly code

Wlodek_D_ — Tue, 01 Apr 2014 13:52:14 GMT

Hello,

Thank you for your post, however please consider moving it to the right community place (e.g. 16-bit Microcontrollers ) to get it visible for active members.

For details please see general advice Where to post a Discussion?

Thank you for using Freescale Community.

Re: PWM in assembly code

kef2 — Tue, 01 Apr 2014 17:24:58 GMT

Cristina,

MOVB $01, MODRR

and

MOVB #$01, MODRR

are different like hell and heaven :-)

Edward

Re: PWM in assembly code

CristinaMares — Tue, 01 Apr 2014 18:47:06 GMT

My God.. Do not code at 3am!!! Thank you