代码搜索：如何学习 UART？
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www.eeworm.com/read/350657/3120472
c uart.c
/*
* BK Id: SCCS/s.uart.c 1.23 12/29/01 14:50:03 trini
*/
/*
* UART driver for MPC860 CPM SCC or SMC
* Copyright (c) 1997 Dan Malek (dmalek@jlc.net)
*
* I used the serial.c driver as the frame
www.eeworm.com/read/350657/3120699
c uart.c
/*
* BK Id: SCCS/s.uart.c 1.13 12/29/01 14:50:03 trini
*/
/*
* UART driver for MPC8260 CPM SCC or SMC
* Copyright (c) 1999 Dan Malek (dmalek@jlc.net)
* Copyright (c) 2000 MontaVista Software,
www.eeworm.com/read/350657/3124223
serial_uart
The SA1100 serial port had its major/minor numbers officially assigned:
> Date: Sun, 24 Sep 2000 21:40:27 -0700
> From: H. Peter Anvin
> To: Nicolas Pitre
> Cc: Dev
www.eeworm.com/read/267676/4263499
h uart.h
/* 定义串口模式设置数据结构 */
typedef struct UartMode
{
uint8 datab; // 字长度，5/6/7/8
uint8 stopb; // 停止位，1/2
uint8 parity; // 奇偶校验位，0为无校验，1奇数校验，2为偶数校验
}UARTMODE
www.eeworm.com/read/267676/4263500
c uart.c
#include "config.h"
#include "uart.h"
uint8 rcv_buf[8]; // UART0数据接收缓冲区
volatile uint8 rcv_new; // 接收新数据标志
/*
********************************************************************
www.eeworm.com/read/267293/4267981
d uart.d
MIPS/uart.o MIPS/uart.d : \
customer/uart.c customer\h\config.h customer\h\set.h \
customer\h\regmap.h customer\h\types.h customer\h\dmabuf.h \
customer\h\uart.h
www.eeworm.com/read/267293/4268059
c uart.c
#include "config.h"
#include "regmap.h"
#include "uart.h"
extern BYTE *uart_buf;
#ifdef SUPPORT_EPP_DBG
void UART_init(BYTE selection)
{
uart_wp = uart_rp = 0;
UART_LSR = UART_SOFTRESE
www.eeworm.com/read/267055/4268577
c uart.c
/*
* file:
* uart.c
* description:
* uart controller code.
*/
void uart_ctrl_init(unsigned long pclk, int baudrate)
{
int i;
/* enable dbgu rx/tx */
*AT91C_PIOA_P
www.eeworm.com/read/267055/4268583
c uart.c
/*
* file:
* uart.c
* description:
* uart controller code.
*/
void uart_ctrl_init(unsigned long pclk, int baudrate)
{
int i;
/* enable uart rx0/tx0 */
rPCONE &= ~