Microchip define examples
#ifdef __DEBUG //Debug mode selected in MPLAB
#if defined(__18CXX)
#elif defined(__C30__)
#elif defined (__PIC32MX__)
#else
#endif
#ifndef __DEBUG
#if (defined(__18CXX) & !defined(PIC18F87J50_PIM))
#endif
#if defined(PIC18F87J50_PIM) || defined(PIC18F46J50_PIM)
#if defined(__PIC24FJ256GB110__)
#if defined(__18F46J50)
Is This Microcontoller In Use
#if defined( __PIC24FJ256GB106__ )
#if defined(__PIC24FJ256GB110__) || defined(__PIC24FJ256GB106__) || defined(__PIC24FJ256GA110__) || defined(__PIC24FJ256GB210__)
Handy UART Setup Example
#define USART1_BAUDRATE 19200
#define USART1_BRG (((GetSystemClock()/2)+(USART1_BRG_DIV/2*USART1_BAUDRATE))/USART1_BRG_DIV/USART1_BAUDRATE-1)
#define BAUD1_ACTUAL ((GetSystemClock()/2)/USART1_BRG_DIV/(USART1_BRG+1))
#define BAUD1_ERROR ((BAUD1_ACTUAL > USART1_BAUDRATE) ? BAUD1_ACTUAL-USART1_BAUDRATE : USART1_BAUDRATE-BAUD1_ACTUAL)
#define BAUD1_ERROR_PERCENT_HUNDREDS ((BAUD1_ERROR*10000+USART1_BAUDRATE/2)/USART1_BAUDRATE)
#if (BAUD1_ERROR_PERCENT_HUNDREDS > 200)
#error UART frequency error is worse than 2%
#endif
USEFUL?
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