工程下載地址：http://blog.chinaunix.net/u3/106835/showart_2390102.html
#include "config.h"

?

#define??HC595_CS??????(1 << 7)
#define??NixieTube_CS?? (1<< 11)??

void DelayMS(uint32 dly)
{
?? ?uint32i;
?? ?for(; dly> 0; dly--)
?? ?{
??????for(i = 0; i < 50000; i++);
?? ?}
}

void? MSPI_Init(void)
{ ?
?? ?PINSEL0 =(PINSEL0 & 0xFFFF00FF) | 0x00001500;

??? SPCCR =0x52;?????????????????// 設(shè)置SPI時(shí)鐘分頻
????SPCR? = (0<< 3)|????????????// CPHA = 0, 數(shù)據(jù)在SCK 的第一個(gè)時(shí)鐘沿采樣
??????????(1 << 4)|????????????// CPOL = 1, SCK 為低有效
??????????(1 << 5)|????????????// MSTR = 1, SPI 處于主模式
??????????(0 << 6)|????????????// LSBF = 0, SPI 數(shù)據(jù)傳輸MSB (位7)在先
??????????(0 <<7);????????????// SPIE = 0, SPI 中斷被禁止
}

void? MSPI_SendData(uint8 data)
{ ?
??? IOCLR =HC595_CS;????????????????// 片選74HC595
? ?
??? SPI_SPDR =data;
??? while( 0 ==(SPI_SPSR &0x80));??????// 等待SPIF置位，即等待數(shù)據(jù)發(fā)送完畢
? ?
??? IOSET =HC595_CS;

}

?

uint8 const DISP_TAB[19] = {
//????0?????1????2???3???4???5???6???7???8???9?? ?
???0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,
//????A???b?????C???d???E?????F
?? ?0x88, 0x83,0xC6, 0xA1,0x86, 0x8E,
// ?? ?L????P??? C
????0xC7, 0x8C,0xC6 };

int main (void)
{
?? ?uint8i;
?? ?
??? PINSEL0 =0x00001500; // 設(shè)置SPI管腳連接
??????????????????????????
??? IODIR =HC595_CS|NixieTube_CS;? ?
??? IOSET =IOSET|NixieTube_CS;
???MSPI_Init();// 初始化SPI接口??????????????????????????????
???while(1)???
??? {?
?????????for(i = 0; i < 16; i++)
?????????{
???????????MSPI_SendData(DISP_TAB[i]);???// 發(fā)送顯示數(shù)據(jù)
???????????DelayMS(80);
???????????}
??? }
?
??? return0;
}

轉(zhuǎn)載于:https://www.cnblogs.com/hnrainll/archive/2010/11/14/1877230.html

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