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[/] [openmsp430/] [trunk/] [fpga/] [xilinx_diligent_s3board/] [software/] [hw_uart/] [hardware.h] - Rev 143
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#ifndef HARDWARE_H #define HARDWARE_H //-------------------------------------------------- // Hardware UART register address mapping //-------------------------------------------------- #define UART_CTL (*(volatile unsigned char *) 0x0080) // UART Control register (8bit) #define UART_STAT (*(volatile unsigned char *) 0x0081) // UART Status register (8bit) #define UART_BAUD (*(volatile unsigned int *) 0x0082) // UART Baud rate configuration (16bit) #define UART_TXD (*(volatile unsigned char *) 0x0084) // UART Transmit data register (8bit) #define UART_RXD (*(volatile unsigned char *) 0x0085) // UART Receive data register (8bit) //-------------------------------------------------- // Hardware UART register field mapping //-------------------------------------------------- // UART Control register fields #define UART_IEN_TX_EMPTY 0x80 #define UART_IEN_TX 0x40 #define UART_IEN_RX_OVFLW 0x20 #define UART_IEN_RX 0x10 #define UART_SMCLK_SEL 0x02 #define UART_EN 0x01 // UART Status register fields #define UART_TX_EMPTY_PND 0x80 #define UART_TX_PND 0x40 #define UART_RX_OVFLW_PND 0x20 #define UART_RX_PND 0x10 #define UART_TX_FULL 0x08 #define UART_TX_BUSY 0x04 #define UART_RX_BUSY 0x01 //-------------------------------------------------- // Hardware UART interrupt mapping //-------------------------------------------------- #define UART_TX_VECTOR (6 *2) // Interrupt vector 6 (0xFFEC) #define UART_RX_VECTOR (7 *2) // Interrupt vector 7 (0xFFEE) //-------------------------------------------------- // Diverse //-------------------------------------------------- // BAUD = (mclk_freq/baudrate)-1 //#define BAUD 2083 // 9600 @20.0MHz //#define BAUD 1042 // 19200 @20.0MHz //#define BAUD 521 // 38400 @20.0MHz //#define BAUD 347 // 57600 @20.0MHz #define BAUD 174 // 115200 @20.0MHz //#define BAUD 87 // 230400 @20.0MHz #endif //HARDWARE_H