左边那颗芯片是之前买的,右边这颗是新买的,
新买的这颗不能像之前的那颗正常控制,感觉程序时序没有问题
求助
IO_595_RCK_0;
for(i=0;i<8;i++)
{
IO_595_SCK_0;
nop();
if(dat&0x80){
IO_595_SI_1;
}else{
IO_595_SI_0;
}
nop();
IO_595_SCK_1;
nop();
dat <<= 1;
}
IO_595_RCK_1;
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左边那颗芯片是之前买的,右边这颗是新买的,
新买的这颗不能像之前的那颗正常控制,感觉程序时序没有问题
求助
IO_595_RCK_0;
for(i=0;i<8;i++)
{
IO_595_SCK_0;
nop();
if(dat&0x80){
IO_595_SI_1;
}else{
IO_595_SI_0;
}
nop();
IO_595_SCK_1;
nop();
dat <<= 1;
}
IO_595_RCK_1;
您好,
这样看像是物料问题,建议你先确认下物料来源,新购物料最终是否来源于TI或TI授权代理商。