Hello
I now design a product use cy7c68013A. when the board is connect to PC, The PC can identify the USB device. And I also can download the Hex file. In my code,I need config two cmos sensor with I2C BUS.So I add the I2C code in TD_INIT function. But I can not find any wave in I2C BUS. So I doubt that the code maybe is not run. So I write a very small progran to test if the chipo is run. the program is :
#include "E:\cypress\usb\target\inc\fx2.h"
#include "E:\cypress\usb\target\inc\fx2regs.h"
//#define ALLOCATE_EXTERN
sbit SDA=IOC^7; /*模拟I2C数据传送位*/
sbit SCL=IOC^6; /*模拟I2C时钟控制位*/
void delay_1ms()
{
unsigned int j ;
for(j=150;j>0;j--);
}
void delay_ms(unsigned int i)
{
for(;i>0;i--)delay_1ms();
}
main()
{
//PORTCCFG=0x00;
OEC=0xFF;
while(1)
{
SDA=1;
SCL=1;
delay_ms(5);
SDA=0;
SCL=0;
delay_ms(5);
}
}
And I also can not measure any wave in I2C BUS.
So please help me ? Where I had made some mistake?
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