Xmega Application Note


defines.h

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00001 /* definitions generated by preprocessor, copy into defines.h */                
00002 #ifndef PPINC   
00003 #define _ATMEGA324P     // device select: _ATMEGAxxxx
00004 #define _B4096      // boot size select: _Bxxxx (words), powers of two only
00005 #ifdef  __ICCAVR__      
00006 #include "ioxm128A1.h"
00007 #endif          
00008 #if     __GNUC__        
00009 #include        <avr/io.h>      
00010 #endif
00011 
00012 #include "avr_compiler.h"
00013 
00014 #define LARGE_MEMORY
00015 
00016 /* define pin for enter-self-prog-mode */               
00017 #define PROGPORT        PORTD.OUT
00018 #define PROGPIN         PORTD.IN
00019 #define PROG_NO         PIN4_bp
00020 
00021 /* baud rate register value calculation */              
00022 #define CPU_FREQ        2000000
00023 #define BAUD_RATE       9600
00024 #define BRREG_VALUE      12
00025 
00026 /* definitions for UART control */              
00027 #define UART_PORT                                   PORTD
00028 #define UART_TX_PIN                                 PIN3_bm
00029 #define BAUD_RATE_LOW_REG                       USARTD0.BAUDCTRLA
00030 #define UART_CONTROL_REG                        USARTD0.CTRLB
00031 #define ENABLE_TRANSMITTER_BIT          USART_TXEN_bp
00032 #define ENABLE_RECEIVER_BIT                     USART_RXEN_bp
00033 #define UART_STATUS_REG                         USARTD0.STATUS
00034 #define TRANSMIT_COMPLETE_BIT           USART_TXCIF_bp
00035 #define DATA_REG_EMPTY_BIT                  USART_DREIF_bp
00036 #define RECEIVE_COMPLETE_BIT            USART_RXCIF_bp
00037 #define UART_DATA_REG                           USARTD0.DATA
00038 
00039 /* definitions for SPM control */               
00040 #define SPMCR_REG                   NVM.CTRLB
00041 #define PAGESIZE                    512
00042 #define APP_END                     0x20000
00043 
00044 /* EEPROM definitions */
00045 #define EEPROM_NO_PAGES     64
00046 #define EEPROM_BYTES_IN_PAGE 32
00047 // Masking out the byte address in a page
00048 #define EEPROM_BYTE_ADDRESS_MASK    0x1f
00049 
00050 /* definitions for device recognition */                
00051 #define PARTCODE                        0xFA
00052 #define SIGNATURE_BYTE_1        0x1E
00053 #define SIGNATURE_BYTE_2        0x97
00054 #define SIGNATURE_BYTE_3        0x4C
00055 
00056 /* indicate that preprocessor result is included */             
00057 #define PPINC
00058 #endif  
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