serial.h
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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
*/
#ifndef __RT_SERIAL_H__
#define __RT_SERIAL_H__
#ifndef AT91C_BASE_US0
#define AT91C_BASE_US0 (0xFFFC0000) // (US0) Base Address
#endif
#ifndef AT91C_BASE_US1
#define AT91C_BASE_US1 (0xFFFC4000) // (US1) Base Address
#endif
#define AT91C_US_RXRDY ((unsigned int) 0x1 << 0) /* US RXRDY Interrupt */
#define AT91C_US_TXRDY ((unsigned int) 0x1 << 1) /* US TXRDY Interrupt */
#define AT91C_US_RSTRX ((unsigned int) 0x1 << 2) /* US Reset Receiver */
#define AT91C_US_RSTTX ((unsigned int) 0x1 << 3) /* US Reset Transmitter */
#define AT91C_US_RXEN ((unsigned int) 0x1 << 4) /* US Receiver Enable */
#define AT91C_US_RXDIS ((unsigned int) 0x1 << 5) /* US Receiver Disable */
#define AT91C_US_TXEN ((unsigned int) 0x1 << 6) /* US Transmitter Enable */
#define AT91C_US_TXDIS ((unsigned int) 0x1 << 7) /* US Transmitter Disable */
#define AT91C_US_RSTSTA ((unsigned int) 0x1 << 8) /* US Reset Status Bits */
#define AT91C_US_USMODE_NORMAL ((unsigned int) 0x0) /* USAR) Normal */
#define AT91C_US_USMODE_RS485 ((unsigned int) 0x1) /* USAR) RS485 */
#define AT91C_US_USMODE_HWHSH ((unsigned int) 0x2) /* USAR) Hardware Handshaking */
#define AT91C_US_USMODE_MODEM ((unsigned int) 0x3) /* USAR) Modem */
#define AT91C_US_USMODE_ISO7816_0 ((unsigned int) 0x4) /* USAR) ISO7816 protocol: T = 0 */
#define AT91C_US_USMODE_ISO7816_1 ((unsigned int) 0x6) /* USAR) ISO7816 protocol: T = 1 */
#define AT91C_US_USMODE_IRDA ((unsigned int) 0x8) /* USAR) IrDA */
#define AT91C_US_USMODE_SWHSH ((unsigned int) 0xC) /* USAR) Software Handshaking */
#define AT91C_US_CLKS_CLOCK ((unsigned int) 0x0 << 4) /* USAR) Clock */
#define AT91C_US_CLKS_FDIV1 ((unsigned int) 0x1 << 4) /* USAR) fdiv1 */
#define AT91C_US_CLKS_SLOW ((unsigned int) 0x2 << 4) /* USAR) slow_clock (ARM) */
#define AT91C_US_CLKS_EXT ((unsigned int) 0x3 << 4) /* USAR) External (SCK) */
#define AT91C_US_CHRL_5_BITS ((unsigned int) 0x0 << 6) /* USAR) Character Length: 5 bits */
#define AT91C_US_CHRL_6_BITS ((unsigned int) 0x1 << 6) /* USAR) Character Length: 6 bits */
#define AT91C_US_CHRL_7_BITS ((unsigned int) 0x2 << 6) /* USAR) Character Length: 7 bits */
#define AT91C_US_CHRL_8_BITS ((unsigned int) 0x3 << 6) /* USAR) Character Length: 8 bits */
#define AT91C_US_PAR_EVEN ((unsigned int) 0x0 << 9) /* DBGU Even Parity */
#define AT91C_US_PAR_ODD ((unsigned int) 0x1 << 9) /* DBGU Odd Parity */
#define AT91C_US_PAR_SPACE ((unsigned int) 0x2 << 9) /* DBGU Parity forced to 0 (Space) */
#define AT91C_US_PAR_MARK ((unsigned int) 0x3 << 9) /* DBGU Parity forced to 1 (Mark) */
#define AT91C_US_PAR_NONE ((unsigned int) 0x4 << 9) /* DBGU No Parity */
#define AT91C_US_PAR_MULTI_DROP ((unsigned int) 0x6 << 9) /* DBGU Multi-drop mode */
#define AT91C_US_NBSTOP_1_BIT ((unsigned int) 0x0 << 12) /* USART 1 stop bit */
#define AT91C_US_NBSTOP_15_BIT ((unsigned int) 0x1 << 12) /* USART Asynchronous (SYNC=0) 2 stop bits Synchronous (SYNC=1) 2 stop bits */
#define AT91C_US_NBSTOP_2_BIT ((unsigned int) 0x2 << 12) /* USART 2 stop bits */
#define MCK 48054857
#define BR 115200 /* Baud Rate */
#define BRD (MCK/16/BR) /* Baud Rate Divisor */
#endif