Microchip Technology MCP1630DM-DDBS1 User Manual

MCP1630 AUTOMOTIVE INPUT BOOST

CONVERTER DEMO BOARD USER’S GUIDE

DS51608B-page 19

Appendix C. Demo Board Firmware

C.1

DEVICE FIRMWARE

For the latest copy of the MCP1630 Automotive Input Boost Converter Demo Board
User’s Guide firmware, visit our web site at www.microchip.com

FIGURE C-1:

Firmware Flowchart.

Set PR2 for 500 kHz Freq

Configure Ansel & CMCON0 as Digital I/O

Internal Osc clock to 8 MHz, TMR0 = 0

and GP5 (for Output V

REF

)

Initialize:GP2 (for Output PWM)

Output V

REF

Signal thro’ GP5

Duty Cycle Set by CCPR1L:CCP1CON<5:4>

Start