感谢，CSAE语句有选择，我想会造成执行时间有长短，但是有一个思路，应该尝试指针 ...
#include <STC32G.H>
volatile unsigned char aiData[] = {0x1,0x3,0x7,0xF,0x1F,0x3F,0x7F,0xFF};
volatile unsigned char iIndex;
volatile unsigned char iIndexa;
volatile unsigned char edata iByte;
volatile unsigned char iBit;
sbit iByte0 = iByte^0;
sbit iByte1 = iByte^1;
sbit iByte2 = iByte^2;
sbit iByte3 = iByte^3;
sbit iByte4 = iByte^4;
sbit iByte5 = iByte^5;
sbit iByte6 = iByte^6;
sbit iByte7 = iByte^7;
void main()
{
WTST = 0;
EAXFR = 1;
CKCON = 0;
P0M1 = 0xF0;
P0M0 = 0x00;
EA = 0;
iIndex = 0;
while (1)
{
if (iIndex > 7)
{
iIndex = 0;
P03 = 0;
}
P01 = 0;
iIndexa = 7 - iIndex;
iByte = aiData;
P03=iByte0;
P03=iByte1;
P03=iByte2;
P03=iByte3;
P03=iByte4;
P03=iByte5;
P03=iByte6;
P03=iByte7;
P01 = 1;
iIndex++;
}
} stc单片机里面有个PSR寄存器控制引脚电平转换速度,可以试试,我只看到过,没有测试
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