C code to get variable frequency

[aalevoltage]

im working a project using PIC16F877A to generate six gating signals to control three phase inverter.the output voltage from the inverter should be of variable frequency and im using square wave operation(six step modulation) &open loop type.

would you pls help me in developing the C code to get a variable frequency? thank you in advance for your cooperation

 

[hanif]

Hi,

plz check following, may be it helps you

Inverter for driving 3 phase motors



in above there are many links one of them i am giving here for quick review

LOW COST 3-PHASE AC MOTOR CONTROL
SYSTEM BASED ON MC68HC908MR24

**broken link removed**

it also include the c code at the end. if it suited to your need what you need is a simple modification in registers name etc and include PIC header files in the beginning. this is what the beauty in C embedded programming.