📄 44b0evb.c
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#include "includes.h"
#define EXT_OSC_CLK 10000000
volatile unsigned int MCLK=60000000;
/*****************************************************************************/
void Delay(unsigned int time)
{
while(--time);
}
/*****************************************************************************/
void UartInit(int ch, int baud)
{
unsigned char a;
if(!ch)
{
rUFCON0 = 0x0; //禁止使用FIFO
rUMCON0 = 0x0; //禁止使用FIFO
rULCON0 = 0x3; //正常无奇偶校验，一个停止位，8个数据位
rUCON0 = 0x45; //TX RX 都用PULSE非LEVEL中断
//rx=edge,tx=level,disable timeout int.,enable rx error int.,normal,interrupt or polling
rUBRDIV0 = (int)(MCLK/(16.0*baud)+0.5)-1;
a = rURXH0;
}
else
{
rUFCON1 = 0x0; //禁止使用FIFO
rUMCON1 = 0x0; //禁止使用FIFO
rULCON1 = 0x3; //正常无奇偶校验，一个停止位，8个数据位
rUCON1 = 0x45;
//rx=edge,tx=level,disable timeout int.,enable rx error int.,normal,interrupt or polling
//baud *= 16;
rUBRDIV1 = (int)(MCLK/(16.0*baud)+0.5)-1;
a = rURXH1;
}
}
void UartSend(int ch, char data)
{
if(!ch)
{
if(data=='\n')
{
while(!(rUTRSTAT0&0x2));
//改动延时时间1--10
Delay(10); //由于超级终端反应较慢，有一个微小延迟
WrUTXH0('\r');
}
while(!(rUTRSTAT0&0x2)); //等待知道THR变空
//改动延时时间1--10
Delay(10);
rUTXH0 = data;
}
else
{
if(data=='\n')
{
while(!(rUTRSTAT1&0x2));
//改动延时时间1--10
Delay(10); //由于超级终端反应较慢，有一个微小延迟
rUTXH1 = '\r';
}
while(!(rUTRSTAT1&0x2)); //等待知道THR变空
//改动延时时间1--10
Delay(10);
rUTXH1 = data;
}
}
int UartReceive(int ch)
{
if(!ch)
{
while(!(rUTRSTAT0&0x1)); //等待直到接受到一个数据
return rURXH0;
}
else
{
while(!(rUTRSTAT1&0x1)); //等待直到接受到一个数据
return rURXH1;
}
}
int UartRxStat(int ch)
{
if(!ch)
return (rUTRSTAT0&0x1);
else
return (rUTRSTAT1&0x1);
}
/*****************************************************************************/
int UartGetch(int ch)
{
if(!ch)
{
if(rUTRSTAT0&0x1) //如果收到字符就返回该字符
return rURXH0;
else
return -1; //如果没有收到字符就返回-1
}
else
{
if(rUTRSTAT1&0x1) //如果收到字符就返回该字符
return rURXH1;
else
return -1; //如果没有收到字符就返回-1
}
}
int UartGetkey(int ch)
{
return ch?rURXH1:rURXH0;
}
void UartSendString(int ch, char *pt)
{
while(*pt)
UartSend(ch, *pt++);
}
void putch(char data)
{
UartSend(CONSOLE_UART, data);
}
void uputs(char *str)
{
while(*str)
UartSend(CONSOLE_UART, *str++);
}
int getch()
{
return UartReceive(CONSOLE_UART);
}
int getkey()
{
return UartGetkey(CONSOLE_UART);
}
int kbhit()
{
return UartRxStat(CONSOLE_UART);
}
void uprintf(char *fmt, ...)
{
va_list arg_ptr;
char buf[256];
va_start(arg_ptr,fmt);
vsprintf(buf,fmt,arg_ptr);
uputs(buf);
}
/*****************************************************************************/
void ChangePllValue(int mdiv, int pdiv, int sdiv)
{
int i = 1;
rPLLCON = (mdiv<<12)|(pdiv<<4)|sdiv;
while(sdiv--!=0)
i *= 2;
MCLK = (EXT_OSC_CLK*(mdiv+8))/((pdiv+2)*i);
}
/*****************************************************************************/
void PortInit(void)
{
// PORT A GROUP
/* BIT 9 8 7 6 5 4 3 2 1 0 */
/* A24 A23 A22 A21 A20 A19 A18 A17 A16 A0 */
/* 0 1 1 1 1 1 1 1 1 1 */
rPCONA = 0x1ff;
// PORT B GROUP
/* BIT 10 9 8 7 6 5 4 3 2 1 0 */
/* /CS5 /CS4 /CS3 /CS2 /CS1 nWBE3 nWBE2 /SRAS /SCAS SCLK SCKE */
/* EXT NIC 8019 IDE D12 NC NC Sdram Sdram Sdram Sdram */
/* 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1 */
rPDATB = 0x04f;
rPCONB = 0x7cf;
//PORT C GROUP
//BUSWIDTH=16 */
/* PC15 14 13 12 11 10 9 8 */
/* o o RXD1 TXD1 o o o o */
/* NC NC Uart1 Uart1 NC NC NC NC */
/* 01 01 11 11 01 01 01 01 */
/* PC7 6 5 4 3 2 1 0 */
/* o o o o o o o o */
/* NC NC NC NC LED LED LED LED */
/* 01 01 01 01 01 01 01 01 */
rPDATC = 0x0000; //All IO is low
rPCONC = 0x5f555555;
rPUPC = 0x3000; //PULL UP RESISTOR should be enabled to I/O
//PORT D GROUP
/* PORT D GROUP(I/O OR LCD) */
/* BIT7 6 5 4 3 2 1 0 */
/* VF VM VLINE VCLK VD3 VD2 VD1 VD0 */
/* 01 01 01 01 01 01 01 01 */
rPDATD= 0x55;
rPCOND= 0xaaaa;
rPUPD = 0x00;
//These pins must be set only after CPU's internal LCD controller is enable
/////////////////////////////////////////////////////
//PORT E GROUP
/* Bit 8 7 6 5 4 3 2 1 0 */
/* ENDLAN o o TOU2 o o RXD0 TXD0 FOUT */
/* 00 01 01 10 01 01 10 10 11 */
rPDATE = 0x157; //Beep = 10
rPCONE = 0x556b;
rPUPE = 0xff;
//PORT F GROUP
/* Bit8 7 6 5 4 3 2 1 0 */
/* IISCLK IISDI IISDO IISLRCK Input Input Input IICSDA IICSCL */
/* 100 100 100 100 00 00 00 10 10 */
rPDATF = 0x0;
rPCONF = 0x24900a;
rPUPF = 0x1d3;
//PORT G GROUP
/* BIT7 6 5 4 3 2 1 0 */
/* EINT7 EINT6 EINT5 EINT4 EINT3 EINT2 EINT1 EINT0 */
/* KEY3 KEY2 KEY1 KEY0 NIC EXT IDE USB */
/* 11 11 11 11 11 11 11 11 */
rPDATG = 0xff;
rPCONG = 0xffff; //enable extint0 extint1
rPUPG = 0x00; //enabled pull up register
rSPUCR= 0x7; //D15-D0 pull-up disable
//rSPUCR= 0x6; //D15-D0 pull-up enable
rSYSCFG = 0x0e; //使用8K字节的指令缓存,write buffer disable
rNCACHBE0 = 0xc0000000; //定义非Cache区,从0x0000000到0xbffffff 烧写FLASH时不能对FLASH cache
rEXTINT = 0x44; //所有的外部硬件中断为低电平触发, extint0 为下降沿，extint1为上升沿
rINTCON = 5; // non vector mode, irq enable
rINTMOD = 0; //all are irq mode
}
/*****************************************************************************/
#define RTC_YEAR0 (0x03) //年
#define RTC_MONTH0 (0x02) //月
#define RTC_DAY0 (0x0e) //日
#define RTC_DATE0 (0x06) //星期SUN:1 MON:2 TUE:3 WED:4 THU:5 FRI:6 SAT:7
#define RTC_HOUR0 (0x08) //小时
#define RTC_MIN0 (0x08) //分
#define RTC_SEC0 (0x08) //秒
#define RTC_YEAR1 (0x03) //年
#define RTC_MONTH1 (0x03) //月
#define RTC_DAY1 (0x0e) //日
#define RTC_DATE1 (0x06) //星期－SUN:1 MON:2 TUE:3 WED:4 THU:5 FRI:6 SAT:7
#define RTC_HOUR1 (0x08) //小时
#define RTC_MIN1 (0x08) //分
#define RTC_SEC1 (0x08) //秒
#define RTC_RW_EN() rRTCCON = 1 //|= 1
#define RTC_RW_DS() rRTCCON &= 0xfe
void RtcSetDay(TIME_STRUC *time)
{
RTC_RW_EN(); //RTC读写使能，选择BCD时钟、计数器，无复位，1/32768
rBCDYEAR = time->year;; //年
rBCDMON = time->month; //月
rBCDDAY = time->day; //日
RTC_RW_DS();
}
void RtcSetWeek(TIME_STRUC *time)
{
RTC_RW_EN();
rBCDDATE = time->weekday;
RTC_RW_DS();
}
void RtcSetTime(TIME_STRUC *time)
{
RTC_RW_EN(); //RTC读写使能，选择BCD时钟、计数器，无复位，1/32768
rBCDHOUR = time->hour; //小时
rBCDMIN = time->min; //分
rBCDSEC = time->sec; //秒
RTC_RW_DS();
}
void RtcInit(TIME_STRUC *time)
{
RTC_RW_EN(); //RTC读写使能，选择BCD时钟、计数器，无复位，1/32768
rBCDYEAR = time->year;; //年
rBCDMON = time->month; //月
rBCDDAY = time->day; //日
rBCDDATE = time->weekday; //星期
rBCDHOUR = time->hour; //小时
rBCDMIN = time->min; //分
rBCDSEC = time->sec; //秒
//rTICINT = 0x80+127; //enable tick timer interrupt, set tick timer interrupt time = (127+1)/128 second
RTC_RW_DS();
}
void RtcAlarm(TIME_STRUC *alarmtime)
{
rALMYEAR = alarmtime->year; //年
rALMMON = alarmtime->month; //月
rALMDAY = alarmtime->day; //日
rALMHOUR = alarmtime->hour; //小时
rALMMIN = alarmtime->min; //分
rALMSEC = alarmtime->sec; //秒
rRTCALM = 0x7f; //全局警报使能控制，年、月、日、星期、时分秒警报使能控制
}
void RtcGetTime(TIME_STRUC *time)
{
unsigned char m;
RTC_RW_EN(); //RTC读写使能
time->year = 2000 + rBCDYEAR;
time->weekday = rBCDDATE;
m = rBCDMON;
time->month = m;
m = rBCDDAY;
time->day = m;
m = rBCDHOUR;
time->hour = m;
m = rBCDMIN;
time->min = m;
m = rBCDSEC;
time->sec = m;
RTC_RW_DS(); //RTC读写禁止(降低功率消耗)，选择BCD时钟、计数器，无复位，1/32768
}
/*****************************************************************************/
void SysInit(void)
{
TIME_STRUC SysTime;
char table_begin[]="/***************************************************************/\n";
next_line();
uputs(table_begin);
#ifdef _OS_
uprintf("uCO/S-II Version:%d.%d for S3C44B0X\n",OSVersion()/100,OSVersion()%100);
#endif
uprintf("Hello,Uart Test\n");
uprintf("System is running at %dMHz\n", MCLK/1000000);
uprintf("Serial Baud rate is %d\n", CONSOLE_BAUD);
uputs("Build date:");
uputs(__DATE__);
putch('-');
uputs(__TIME__);
next_line();
uputs("Edit By www.mcuzone.com\n");
uputs(table_begin);
SysTime.year = 5;
SysTime.month = 8;
SysTime.day = 1;
SysTime.weekday = 1;
SysTime.hour = 0x10;
SysTime.min = 0x51;
SysTime.sec = 0;
RtcSetDay(&SysTime);
RtcSetTime(&SysTime);
uputs("System Initialized.\n");
}
/*****************************************************************************/
void EvbInit(void)
{
ChangePllValue(0x34,0x03,0x01);//60MHz
//ChangePllValue(22,3,1);//30MHz
//ChangePllValue(24,6,1);//20MHz
//ChangePllValue(8,6,1);//10MHz
PortInit();
IrqInit();
UartInit(CONSOLE_UART, CONSOLE_BAUD);
}
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