S12 / MagniV MicrocontrollersのトピックRe: PWM0 on MC9S12C32

PWM0 on MC9S12C32

lasteem1 — Wed, 16 Jul 2008 20:40:07 GMT

I'm attempting to get the PWM working on the S12C32 here is what I'm doing to config the pwm:

PWMCLK=0x01; //clock SA is the source clock
PWMSCLA=0x32; //Clock SA = Clock A / (2 * PWMSCLA)
PWMPRCLK=0x04;//prescaler=bus clock/16
PWMPER0=0xF9;//period = channel clock period * (2 * PWMPERx)
PWMDTY0=0x7B; //Duty cycle = [(PWMPERx PWMDTYx)/PWMPERx] * 100%
PWME=0x01; //enable PWM0

I would greatly appreciate the help if anyone can help me figure out what I"m doing wrong. Thanks in advance.

Re: PWM0 on MC9S12C32

allawtterb — Thu, 17 Jul 2008 21:36:46 GMT

I don't see anything wrong with your initialization, what exactly is your problem?

Re: PWM0 on MC9S12C32

lasteem1 — Thu, 17 Jul 2008 21:41:49 GMT

I finally figured out that I was not configuring the mux for the pin. Thanks.