User`s guide

MCP1630 DUAL BUCK DEMO
BOARD USER’S GUIDE
© 2005 Microchip Technology Inc. DS51531A-page 21
Appendix C. Evaluation Board Firmware
C.1 DEVICE FIRMWARE
For the latest version of the MCP1630 Dual Buck Demo Board firmware, visit the
Microchip web site at www.microchip.com.
FIGURE C-1: Firmware Flowcharge - Page 1.
Power-Up
Initialize:
Ports, Clocks, A/D,
PWM, IIC and
Interrupts
Yes
No
ON
Detected?
No
Mode
Pressed?
No
Start Converter
Using programmed
settings
LED Flashing
Turn V
OUT1
On
Mode
Pressed?
No
Set
Pressed?
No
Set up V
OUT2
Select
Sequencing
Select Frequency
Dithering On or
Off
Setup
Complete
No
Increment
PWM
Yes
Yes
Yes
Yes
Fault
Detected
Yes
Shutdown Converter
Flash LED
No
Off
Detected
No
End
Yes
Yes
V
IN
ok?
or Tracking