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PICDEM-1 User’s Guide
6.3
Init_ports and Init_serial Routines
The I nit_ports routine simply initializes PORTB.
Set PORTB All Outputs
Set PORTB All Low
Return
Figure 6.5: Initialize Ports Routine
Init_serial initializes the USART. The baud rate is set to 9600, reception
and transmit are enabled, and corresponding interrupts are also enabled.
Select 9600 baud
Set up Serial Pins
Set up Transmit Status
Clear all Interrupts and Enables
Enable Recieve Interrupt
Enable Transmit
Enable Peripheral Interrupts
Return
Figure 6.6: Initialize Serial Port (USART)
DS33015C-page 38
? 1999 Microchip Technology Inc.
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