Microchip Technology MCP1630 Bedienungsanleitung PDF herunterladen (Seite 23)

MCP1630 AUTOMOTIVE INPUT

TRIPLE OUTPUT CONVERTER

DEMO BOARD USER’S GUIDE

Appendix C. Demo Board Firmware

C.1 DEVICE FIRMWARE

For the latest version of the MCP1630 Automotive Input Triple Output Converter Demo

Board firmware, visit our web site at www.microchip.com.

FIGURE C-1: Firmware Flowchart.

Yes

START

Initialize Registers and Osc Clock to 8 MHz

Configure GPIO<3> as Input and Enable Port Change Interrupt for this Pin,

Configure GPIO<2,4> as Output Ports

Configure PWM.

Goto sleep mode

Check for Switch Press

Wake up from SLEEP

on Switch Press

Start the PWM Pulses at 250 kHz

Frequency

Start the Vref Signal

If Switch is pressed

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Microchip Technology MCP1630 Bedienungsanleitung Seite 23