io.c

使用USB2.0芯片CY7C68013A开发的usb转串口的源码。

#include "fx2.h"
#include "fx2regs.h"
#include "io.h"

void IO_Init()
{
	PORTECFG &= ~WORK_LED;  
	PORTECFG &= ~CPLD_RST;  
	OEE |= WORK_LED;  
	OEE |= CPLD_RST;     
/////////////////////////////
	IOE &= ~CPLD_RST;         //CPLD reset
	IOE |= CPLD_RST;
	IOE &= ~WORK_LED;         //Word Led Light
}

void REG_Init()
{
	CPUCS = 0x10; //48Mhz
	CKCON = (CKCON&(~bmSTRETCH)) | 1; // Set stretch to 0 (after renumeration)	
}