检一2103做的产品，想拿来学学。查查资料写了个SPI的程序，用示波器看怎么连SCK信号都没有？郁闷了好几天了，芯片没坏，我串口都能出数据。请高手帮忙看看，谢谢！
#include "config.h"
#define PWM0CON (*((volatile unsigned long *) 0xE0004074))
/* flash */
#define FlashCmd1 0x03;
unsigned char inbuff[32];
unsigned char outbuff[32];
unsigned char in_num;
unsigned char out_num;
unsigned char out_ptr;
uint8 temp;
unsigned int rec_num;
unsigned char flag;
uint32 step_num;
void Delay(uint32 dly);
//uint8 rcv_buf[8]; // UART0数据接收缓冲区
//volatile uint8 rcv_new; // 接收新数据标志
/***********FLASH 函数*************/
//spi
//dig=(dig%100)+160+((dig/100)+160)*256
#define MSTR (1<<5) //
#define CPOL (1<<4) //
#define CPHA (1<<3) //
#define LSBF (1<<6) //
#define MSPI_MODE (MSTR|CPOL|CPHA) /*接口模式MSTR = 1,CPOL = 1,CPHA = 0,LSBF = 0 */
#define SSPI_MODE (CPHA)
#define SPI_CS (1<<18)
/*
void SSpiIni(void)
{
S1PCR = SSPI_MODE;
}
void SSendData(unit8 data)
{
S1PDR = data;
while(0 == (S1PSR&0X80));
}
unit8 SRcvData(void)
{
while(0 == (S1PSR&0x80));
return(S1PDR);
}
*/
///////////////////////////////////////////////////////////////////////////////////////////////
void MSPI_Init(uint8 fdiv) //初始化SPI接口，设置为主机fdiv 大于8的偶数
{
if(fdiv<8) fdiv = 8;
S0PCCR = fdiv&0xfe; //2103没有SPI0和SPI1 !!!!!设置SPI时钟分频
Delay(5555);
IOSET|= 1<<9; //deng mei
Delay(5555);
S0PCR = MSPI_MODE; // S0SPCR??????
// S0PCR = 0x38;
IOCLR|= 1<<9;
Delay(5555);
}
uint8 MSendData(uint8 data)
{
IOCLR = SPI_CS;
S0PDR = data;
while(0==(S0PSR&0X80));
IOSET = SPI_CS;
return(S0PDR);
}
///////////////////////////////////////////
void Feed(unsigned long step)
{
step_num = step;
T0TCR = 0x01; //启动定时器
IOSET |= 1<<30; //打开电动机电源
}
void __irq InterUart0()
{
if((U0LSR & 0x01)==1)
{
IOSET |= 1<<9;
inbuff[in_num] = U0RBR;
// U0THR = inbuff[in_num];
U0THR = temp; //
in_num++;
if(in_num > 32)
{
in_num=0;
}
}
VICVectAddr = 0;
Feed(200);
}
void __irq InterTime0()
{
T0IR = 0x01; //CR3中断；p0.18 复位中断；
T0TCR = 0x00; //关闭定时器；
// U0THR = 'o';
while( (U0LSR&0x40)==0);
VICVectAddr = 0;
if(flag==0)
{
if((IOSET&(1<<11))!=0)
{
IOCLR |= 1<<11;
}
else
{
IOSET |= 1<<11;
}
flag = 1;
}
else
{
if((IOSET&(1<<12))!=0)
{
IOCLR |= 1<<12;
}
else
{
IOSET |= 1<<12;
}
flag = 0;
}
if(--step_num!=0)
{
T0TCR = 0x01;
}
else
{
uint32 loop=0xff;
while(loop--!=0);
IOCLR |= 1<<30;
}
}
void Uart0Init()
{
unsigned int fdiv;
VICIntSelect &= 0xbf;
VICIntEnable |= 1<<6;
VICVectCntl1 = 0x26;
VICVectAddr1 = (uint32)InterUart0;
U0LCR = 0X83; //允许访问除数寄存器在DLAB==1
fdiv = (Fpclk/16)/9600; //
U0DLM = fdiv>>8;
U0DLL = fdiv&0xff;
U0FCR = 0x01; //FIFO控制，BIT
U0LCR = 0x03;
U0IER = 0x01; //必须在DLAB==0时允许接受中断
}
void Time0Init(void)
{
T0TC = 0;
T0PR = 0; //最大值
T0MCR =0x03; //设置匹配后，复位T0TC，并产生中断；
T0MR0 = Fpclk/200;
T0TCR = 0x01; //启动定时器；//
VICIntEnable |= 1<<4;
VICVectAddr2 = (uint32)InterTime0;
VICVectCntl2 = 0x24;
}
void Delay(uint32 dly)
{
uint32 i;
for(;dly > 0;dly--)
{
for(i=0;i<5000;i++);
}
}
int main (void)
{
do
{
// PINSEL0 = 0x05;
PINSEL0 = 0X5505;
IODIR |= 0xfff<<9; //p0.9-p0.12为输出模式
IOCLR |= 1<<9; //DENG liang
Delay(5555);
IOSET |= 1<<9; //DENG mei
Delay(5555); //
IODIR |= 1<<30;
MSPI_Init(52); ////?????????
// MSendData(0x03);
temp = MSendData(0x03);
// Feed(temp);
Delay(9999);
IOSET |= 1<<30;
U0FCR = 0x81; //8bit 可改 使能FIFO，并设置触发点为8字节,就是Rx触发
U0IER = 0x01;
IRQEnable(); //IRQ 中断必须开
Uart0Init();
// VICSoftInt =1<<6;
Time0Init();
U0IIR = 0x00;
IOSET |= 1<<10; //打开1838使能
Feed(400);
}
while(1);
return 0;
}
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