www.pudn.com > S3C44B0X_USB.rar > ctrl_set.c
#include "inc\44b0x.h"
#include "DataType.h"
#define EXT_OSC_CLK 10000000
unsigned int MCLK = 20000000;
void ChangePllValue(int mdiv, int pdiv, int sdiv)
{
int i = 1;
rPLLCON = (mdiv<<12)|(pdiv<<4)|sdiv;
while(sdiv--)
i *= 2;
MCLK = (EXT_OSC_CLK*(mdiv+8))/((pdiv+2)*i);
}
/****************************************************************************
【功能说明】IO端口功能、方向设定
****************************************************************************/
void PortInit(void)
{
//ADB V1.0 B/D Status
//USB D12SUSPD
// PC0
//LED D0 D1 D2
// PC1 PC2 PC3
//KEY K0 K1 K2 K3
// PG4 PG5 PG6 PG7
//CAUTION:Follow the configuration order for setting the ports.
// 1) setting value
// 2) setting control register
// 3) configure pull-up resistor.
//16bit data bus configuration
//PORT A GROUP
//rPCONA[9:0]
//|BIT9 |.......................................................|BIT0
//|ADDR24|ADDR23|ADDR22|ADDR21|ADDR20|ADDR19|ADDR18|ADDR17|ADDR16|ADDR0
//| 0| 1| 1| 1| 1| 1| 1| 1| 1| 1
rPCONA=0x1ff;
//PORT B GROUP
//rPCONB[10:0]
//|BIT10|....................................................|BIT0
//|nGCS5|nGCS4|nGCS3|nGCS2|nGCS1|nWBE3|nWBE2|nSRAS|nSCAS|SCLK|SCKE
//| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1| 1
rPDATB=0x3ff;
rPCONB=0x3ff;
//PORT C GROUP
//BUSWIDTH=16
//PORT C GROUP
//rPCONC[31:0]
//|GPC15|....................................................................| GPC0
//|BIT31|....................................................................| BIT0
//|nCTS0|nRTS0|RXD1|TXD1|nCTS1|nRTS1|nEL|nDISP|VD4|VD6|VD5|VD7|LED2|LED1|LED0|D12SUSPD
//| 00| 00| 11| 11| 00| 00| 01| 01| 11| 11| 11| 11| 01| 01| 01| 01
//rPUPC[15:0]
//| 0| 0| 1| 1| 0| 0| 0| 0| 1| 1| 1| 1| 0| 0| 0| 0
rPDATC=0xffff; //All I/O Is High
rPCONC=0x0f05ff55;
rPUPC=0x30fe; //PULL UP RESISTOR should be enabled to I/O
//PORT D GROUP
//rPCOND
//| BIT15|.........................|BIT0
//|VFRAME|VM|VLINE|VCLK|VD3|VD2|VD1|VD0
//| 10|10| 10| 10| 10| 10| 10| 10
rPDATD=0xff;
rPCOND= 0x0;
rPUPD = 0x0;
//These pins must be set only after CPU's internal LCD controller is enable
//rPCOND=0xaaaa;
//rPUPD=0xff;
//PORT E GROUP
//rPCONE
//| BIT17 |..............................|BIT0
//|CODECLK|PE7|PE6|BEEP|PE4|PE3|RXD0|TXD0| PE0
//| 10| 01| 01| 01| 01| 01| 10| 10| 00
//|rPUPE[7:0]
// | 0| 0| 0| 0| 0| 1| 1| 0
rPDATE=0x1ff; //All I/O Is High
rPCONE=0x25568; //All NC is INPUT
rPUPE=0x0df; //PE8 do not have programmable pull-up resistor.
//PORT F GROUP
//rPCONF[21:0]
//| BIT21|....................................| BIT0
//|IISCLK|PF7|IISDO|IISLRCK|PF4|PF3|PF2|IICSDA|IICSCL
//| 100|000| 100| 100| 00| 00| 00| 10| 10
//rPUPF[8:0]
//| 1| 0| 1| 1| 0| 0| 0| 1| 1
rPDATF=0x1ff; //All I/O Is High
rPCONF=0x20900a;//All NC is INPUT
rPUPF=0x163;
//PORT G GROUP
//rPCONG[15:0]
//|BIT15|....................................| BIT0
//| KEY3|KEY2|KEY1|KEY0|EXINT3|EXINT2|NET_INT|USB_INT
//| 11| 11| 11| 11| 11| 11| 11| 11
rPDATG=0xff;
rPCONG=0x00ff; //KEY0~KEY3定义为I/O,采用查询方式
//rPCONG=0xffff,KEY0~KEY3定义为中断,
rPUPG=0x0; //should be enabled
rSPUCR=0x7; //D15-D0 pull-up disable
rEXTINT=0x0; //All EXTINT0-7 Low level interrupt
//Define the Non_Cache area
// rNCACHBE0=(((Non_Cache_End)>>12)<<16)|((Non_Cache_Start)>>12);
}
/*********************************************************/
#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
rTICNT = 0x80+127; //enable tick timer interrupt, set tick timer interrupt time = (127+1)/128 second
RTC_RW_DS();
}
void RtcAlarm(TIME_STRUC *time)
{
rALMYEAR = time->year; //年
rALMMON = time->month; //月
rALMDAY = time->day; //日
rALMHOUR = time->hour; //小时
rALMMIN = time->min; //分
rALMSEC = time->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)
{
U8 m;
RTC_RW_EN(); //RTC读写使能
time->year = 2000 + rBCDYEAR;
time->weekday = rBCDDATE;
m = rBCDMON;
time->month = m;//(m>>4)*10 + (m&0xf); //BCD码转十进制
m = rBCDDAY;
time->day = m;//(m>>4)*10 + (m&0xf); //BCD码转十进制
m = rBCDHOUR;
time->hour = m;//(m>>4)*10 + (m&0xf); //BCD码转十进制
m = rBCDMIN;
time->min = m;//(m>>4)*10 + (m&0xf); //BCD码转十进制
m = rBCDSEC;
time->sec = m;//(m>>4)*10 + (m&0xf); //BCD码转十进制
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 InitSysTimer(U8 Freq)
{
rTCON &= 0xf0ffffff; //clear manual update bit, stop Timer 5
rTCFG0 &= 0xff00ffff; //定时器4/5的预分频为16
rTCFG0 |= (16-1)<<16;
rTCFG1 &= 0xff0fffff; //定时器5的MUX为1/8
rTCFG1 |= 2<<20;
rTCNTB5 = MCLK/(Freq*16*8); //定时器5的重装值,在ENABLE之前设定
rTCON |= 0x02000000; //定时器5的MANUAL UPDATE BIT设为1
rTCON &= 0xf0ffffff; //MANUAL UPDATE BIT清零
rTCON |= 0x05000000; //定时器5 start, 设为INTERVAL模式
}
#define MaxBeepFreq 20000
#define MinBeepFreq 20
void SetBeepPwm(U16 Freq, U8 HiRatio)
{
if(Freq>MaxBeepFreq)
Freq = MaxBeepFreq;
if(HiRatio>100)
HiRatio = 100;
rTCON &= 0xffff0fff; // clear manual update bit, stop Timer2
rTCFG0 &= 0xffff00ff; // set Timer 2&3 prescaler 0
rTCFG1 &= 0xfffff0ff; // set Timer 2 MUX 1/16
rTCFG1 |= 0x00000300;
rTCNTB2 = MCLK/(Freq*16); //if set inverter off, when TCNT2<=TCMP2, TOUT is high, TCNT2>TCMP2, TOUT is low
rTCMPB2 = (rTCNTB2*(100-HiRatio))/100; //if set inverter on, when TCNT2<=TCMP2, TOUT is low, TCNT2>TCMP2, TOUT is high
rTCON |= 0x00002000; // manual update
rTCON &= 0xffff0fff; // clear manal update bit
rTCON |= 0x0000d000; // auto reload, inverter on, start Timer 5
}