[SOLVED] problem with PWM modulation

[madusanka]

i am using pic16f887 chip , i am successfully get 2 PWM signal on ccp1 and ccp2 ,
my problem is how can i used more than 2 PWM on 16f887 mcu ?
thanks

 

[milind.a.kulkarni]

one of the way to do this is use interrupt timer and in the time intervals use the port pins that your are interested to use to generate the PWM seq.....but this also will not give you simeltinous PWM outputs.....AS in case of micro-controller the exectuation is sequential ....

Good Luck

 

[engshahrul]

What is frequency needed? If low frequency, can use Timer Interrupt. If high frequency (1kHz), no choice to have third PWM. You need to change other PIC.

 

[madusanka]

i have try many time get 4 pwm output in pic16f887 but i couldn't, so i jump to another MCU 18F4431 it has 6 pwm chanel , it's work for me,

thanks for quick reply
best regard