关于CY7c68013的问题

只看该作者 · 2012-8-2 12:35

我用CY7C68013，怎么一执行到FIFORESET就感觉程序跑飞了一样？
就不能继续执行了，我用的是内部时钟。
void Dealy_Moment()
{
WORD i;
   for( i = 0x0000; i < 0x7FF; i++ )
{
   SYNCDELAY;
   SYNCDELAY;
}
}

void TD_Init(void)          // Called once at startup
{
// set the CPU clock to 48MHz
CPUCS = ((CPUCS & ~bmCLKSPD) | bmCLKSPD1) ;

// set the slave FIFO interface to 48MHz
IFCONFIG |= 0xC3;

  // Registers which require a synchronization delay, see section 15.14
  // FIFORESET       FIFOPINPOLAR
  // INPKTEND       OUTPKTEND
  // EPxBCH:L       REVCTL
  // GPIFTCB3       GPIFTCB2
  // GPIFTCB1       GPIFTCB0
  // EPxFIFOPFH:L    EPxAUTOINLENH:L
  // EPxFIFOCFG    EPxGPIF标志寄存器SEL
  // PINFLAGSxx    EPxFIFOIRQ
  // EPxFIFOIE       GPIFIRQ
  // GPIFIE          GPIFADRH:L
  // UDMACRCH:L    EPxGPIFTRIG
  // GPIFTRIG

  // Note: The pre-REVE EPxGPIFTCH/L register are affected, as well...
  //    ...these have been replaced by GPIFTC[B3:B0] registers

  // default: all endpoints have their VALID bit set
  // default: TYPE1 = 1 and TYPE0 = 0 --> BULK
  // default: EP2 and EP4 DIR bits are 0 (OUT direction)
  // default: EP6 and EP8 DIR bits are 1 (IN direction)
  // default: EP2, EP4, EP6, and EP8 are double buffered

  // we are just using the default values, yes this is not necessary...
REVCTL = 0x03; // MUST set REVCTL.0 and REVCTL.1 to 1
SYNCDELAY;

SYNCDELAY;
EP2CFG=0xA0;          //需要设定为四缓冲，每个缓冲区大小为512字节
SYNCDELAY;
EP4CFG=0x00;
SYNCDELAY;
EP6CFG=0xE0;          //in 2缓冲，大小512Byte
SYNCDELAY;
EP8CFG=0x00;

PORTACFG       = 0x00;
SYNCDELAY;
  OEA                |= 0x0F;
SYNCDELAY;
PA0 = 1;
SYNCDELAY;       SYNCDELAY;
SYNCDELAY;       SYNCDELAY;
SYNCDELAY;       SYNCDELAY;
PA1 = 1;
SYNCDELAY;       SYNCDELAY;
SYNCDELAY;       SYNCDELAY;
SYNCDELAY;       SYNCDELAY;
Dealy_Moment();

SYNCDELAY;
FIFORESET = 0x80; // Reset the FIFO
SYNCDELAY;
FIFORESET = 0x02;
SYNCDELAY;
FIFORESET = 0x06;
SYNCDELAY;
FIFORESET = 0x00;
SYNCDELAY;

PA0 = 0;
SYNCDELAY;       SYNCDELAY;
PA1 = 0;
SYNCDELAY;       SYNCDELAY;
Dealy_Moment();

  // out endpoints do not come up armed
  // since the defaults are double buffered we must write dummy byte counts twice
  SYNCDELAY;
  EP2BCL = 0x80;             // arm EP2OUT by writing byte count w/skip.
  SYNCDELAY;
  EP2BCL = 0x80;
  SYNCDELAY;
  EP6BCL = 0x80;             // arm EP4OUT by writing byte count w/skip.
  SYNCDELAY;
  EP6BCL = 0x80;

  //小于64字节有效
  //EP6FIFOPFH=0x00; //DEIS PKSTAT  PK2 PK1 PK0 0 PFC9 PFC8
  //EP6FIFOPFL=0x40; //PFC7 PFC6 PFC5 PFC4 PFC3 PFC2 PFC1 PFC0

// handle the case where we were already in AUTO mode...
// EP2FIFOCFG    = 0x01;          // AUTOOUT=0, WORDWIDE=1
SYNCDELAY;

EP6FIFOCFG    = 0x09;          // AUTOIN=1, ZEROLENIN=0, WORDWIDE=1
SYNCDELAY;

//IO设置
//PORTCCFG       = 0x00;
//PORTECFG       = 0x00;
//OEC=0x00;
//OEE=0xff;
//串口初始化

  // enable dual autopointer feature
  AUTOPTRSETUP |= 0x01;

只看该作者 · 2012-8-2 12:42

我用PA看波形，发现PA变高后就不变低了，这是怎么回事？

只看该作者 · 2012-8-2 15:56

没有高手指教一下么？

只看该作者 · 2012-8-9 14:56

晕啊