我用CY3261A-RGB板子上的led16做了个小程序，用rgb实现颜色的变更，采用for循环嵌套，程序代码如下：
#include <m8c.h> // part specific constants and macros
#include "PSoCAPI.h"
#define uchar unsigned char
#define uint unsigned int // PSoC API definitions for all User Modules
void delay(uint x)
{
uint i,j;
for(i=0;i<=x;i++)
{
for(j=0;j<=50;j++);
}
}
void main()
{
uchar r1=0,g1=0,b1=0，i=3;
PRT2DR&=~0x80;
SSDM_1_Start();
SSDM_2_Start();
SSDM_3_Start();
M8C_EnableGInt;
while(i--)
{
SSDM_1_WriteSignalDensity(0xff);
SSDM_2_WriteSignalDensity(0x80);
SSDM_3_WriteSignalDensity(0x00);
delay(2000);
SSDM_1_WriteSignalDensity(0x00);
SSDM_2_WriteSignalDensity(0x80);
SSDM_3_WriteSignalDensity(0xff);
delay(2000);
SSDM_1_WriteSignalDensity(0x80);
SSDM_2_WriteSignalDensity(0x00);
SSDM_3_WriteSignalDensity(0xff);
delay(2000);
}
for(r1=0;r1<=250;r1+=5)
{
for(g1=0;g1<=250;g1+=5)
{
for(b1=250;b1>=0;b1-=25)
{
delay(1000);
SSDM_1_WriteSignalDensity(r1);
SSDM_2_WriteSignalDensity(g1);
SSDM_3_WriteSignalDensity(b1);
}
}
}
}
}
程序执行后，第一个while循环可以正常执行，但是后面的for嵌套却不行，每次都只是蓝灯渐暗，另外两个始终点不亮，很奇怪。后来我把for嵌套程序修改如下后，正常执行了。感到莫名其妙，不知道是哪里的问题。
for(r1=0;r1<=250;r1+=5)
{
for(g1=0;g1<=250;g1+=5)
{
b1=250;
while(b1-=5)
{
delay(1000);
SSDM_1_WriteSignalDensity(r1);
SSDM_2_WriteSignalDensity(g1);
SSDM_3_WriteSignalDensity(b1);
}
}
}
}
不知道这是不是designer的bug？
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楼主
