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https://github.com/armink/FreeModbus_Slave-Master-RTT-STM32.git
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de7bad9245
2、【创建】Eclipse工程，并支持IAR插件调试 3、【创建】Keil工程，位于/RVMDK目录下 4、【创建】IAR工程，位于/EWARM目录下 5、【添加】RT-Thread1.1.1操作系统支持 6、【添加】LED1、LED2系统运行指示灯 7、【修改】Readdme.md文件 Signed-off-by: armink <armink.ztl@gmail.com>
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
#ifndef __RT_HW_SERIAL_H__
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#define __RT_HW_SERIAL_H__
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#include <rthw.h>
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#include <rtthread.h>
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#include "at91sam926x.h"
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#define RXRDY 0x01
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#define TXRDY (1 << 1)
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#define BPS 115200 /* serial baudrate */
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#define UART_RX_BUFFER_SIZE 64
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#define UART_TX_BUFFER_SIZE 64
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struct serial_int_rx
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{
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rt_uint8_t rx_buffer[UART_RX_BUFFER_SIZE];
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rt_uint32_t read_index, save_index;
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};
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struct serial_int_tx
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{
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rt_uint8_t tx_buffer[UART_TX_BUFFER_SIZE];
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rt_uint32_t write_index, save_index;
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};
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typedef struct uartport
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{
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/* USART register offsets */
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volatile rt_uint32_t USART_CR;
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volatile rt_uint32_t USART_MR;
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volatile rt_uint32_t USART_IER;
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volatile rt_uint32_t USART_IDR;
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volatile rt_uint32_t USART_IMR;
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volatile rt_uint32_t USART_CSR;
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volatile rt_uint32_t USART_RHR;
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volatile rt_uint32_t USART_THR;
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volatile rt_uint32_t USART_BRGR;
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volatile rt_uint32_t USART_RTOR;
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volatile rt_uint32_t USART_TTGR;
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volatile rt_uint32_t reseverd0[5];
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volatile rt_uint32_t USART_FIDI;
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volatile rt_uint32_t USART_NER;
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volatile rt_uint32_t USART_XXR;
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volatile rt_uint32_t USART_IFR;
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volatile rt_uint32_t reserved1[44];
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volatile rt_uint32_t USART_RPR;
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volatile rt_uint32_t USART_RCR;
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volatile rt_uint32_t USART_TPR;
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volatile rt_uint32_t USART_TCR;
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volatile rt_uint32_t USART_RNPR;
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volatile rt_uint32_t USART_RNCR;
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volatile rt_uint32_t USART_TNPR;
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volatile rt_uint32_t USART_TNCR;
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volatile rt_uint32_t USART_PTCR;
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volatile rt_uint32_t USART_PTSR;
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}uartport;
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struct serial_device
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{
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uartport* uart_device;
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/* rx structure */
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struct serial_int_rx* int_rx;
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/* tx structure */
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struct serial_int_tx* int_tx;
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};
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rt_err_t rt_hw_serial_register(rt_device_t device, const char* name, rt_uint32_t flag, struct serial_device *serial);
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void rt_hw_serial_isr(rt_device_t device);
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#endif
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