S3C2451_uart_ARM串口操作

最新推荐文章于 2024-06-11 14:22:17 发布

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最新推荐文章于 2024-06-11 14:22:17 发布 · 1.1k 阅读

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CC 4.0 BY-SA版权

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#ARM-UART #串口初始化 #S3C2451 #波特率配置

本文介绍了如何进行S3C2451微处理器的UART多接口初始化，包括设置串口号、波特率、比特位宽度和停止位。还提供了自动配置波特率以及串口的发送、接收、中断处理等功能的实现代码。欢迎指正讨论。

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这里给大家看一下我写的S3C2451的UART多接口初始化程序

只要输入想要配置的串口号，波特率，比特位宽度以及停止位，自动配置串口波特率
以及发送接受字符、发送字符串、串口中断等函数
如果有什么不对的地方希望赐教！

/*UART*/
#define     ULCON0      (*(volatile unsigned long *)0x50000000)
#define     ULCON1      (*(volatile unsigned long *)0x50004000)
#define     ULCON2      (*(volatile unsigned long *)0x50008000)
#define     ULCON3      (*(volatile unsigned long *)0x5000c000) 

#define     UCON0       (*(volatile unsigned long *)0x50000004)
#define     UCON1       (*(volatile unsigned long *)0x50004004)
#define     UCON2       (*(volatile unsigned long *)0x50008004)
#define     UCON3       (*(volatile unsigned long *)0x5000c004)

#define     UFCON0      (*(volatile unsigned long *)0x50000008)
#define     UFCON1      (*(volatile unsigned long *)0x50004008)
#define     UFCON2      (*(volatile unsigned long *)0x50008008)
#define     UFCON3      (*(volatile unsigned long *)0x5000c008)

#define     UMCON0      (*(volatile unsigned long *)0x5000000c)
#define     UMCON1      (*(volatile unsigned long *)0x5000400c)
#define     UMCON2      (*(volatile unsigned long *)0x5000800c)

#define     UTRSTAT0    (*(volatile unsigned long *)0x50000010)
#define     UTRSTAT1    (*(volatile unsigned long *)0x50004010)
#define     UTRSTAT2    (*(volatile unsigned long *)0x50008010)
#define     UTRSTAT3    (*(volatile unsigned long *)0x5000c010)

#define     UERSTAT0    (*(volatile unsigned long *)0x50000014)
#define     UERSTAT1    (*(volatile unsigned long *)0x50004014)
#define     UERSTAT2    (*(volatile unsigned long *)0x50008014)
#define     UERSTAT3    (*(volatile unsigned long *)0x5000c014)

#define     UFSTAT0     (*(volatile unsigned long *)0x50000018)
#define     UFSTAT1     (*(volatile unsigned long *)0x50004018)
#define     UFSTAT2     (*(volatile unsigned long *)0x50008018)
#define     UFSTAT3     (*(volatile unsigned long *)0x5000c018)

#define     UMSTAT0     (*(volatile unsigned long *)0x5000001c)
#define     UMSTAT1     (*(volatile unsigned long *)0x5000401c)
#define     UMSTAT2     (*(volatile unsigned long *)0x5000801c)

#define     UTXH0       (*(volatile unsigned long *)0x50000020)
#define     UTXH1       (*(volatile unsigned long *)0x50004020)
#define     UTXH2       (*(volatile unsigned long *)0x50008020)
#define     UTXH3       (*(volatile unsigned long *)0x5000c020)

#define     URXH0       (*(volatile unsigned long *)0x50000024)
#define     URXH1       (*(volatile unsigned long *)0x50004024)
#define     URXH2       (*(volatile unsigned long *)0x50008024)
#define     URXH3       (*(volatile unsigned long *)0x5000c024)

#define     UBRDIV0     (*(volatile unsigned long *)0x50000028)
#define     UBRDIV1     (*(volatile unsigned long *)0x50004028)
#define     UBRDIV2     (*(volatile unsigned long *)0x50008028)
#define     UBRDIV3     (*(volatile unsigned long *)0x5000c028)

#define     UDIVSLOT0   (*(volatile unsigned long *)0x5000002c)
#define     UDIVSLOT1   (*(volatile unsigned long *)0x5000402c)
#define     UDIVSLOT2   (*(volatile unsigned long *)0x5000802c)
#define     UDIVSLOT3   (*(volatile unsigned long *)0x5000c02c)

/* 枚举串口号 */
typedef enum
{
    UART0 = 0,
    UART1,
    UART2,
    UART3

}UAR

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