我想用FPGA控制射频天线的信号通过FX2芯片传输给电脑，FX2的驱动、固件能识别，
用EP2OUT写入数据，存给EP6IN，能在计算机上用Cyconsole读出数据。但是用FPGA给FX2写数据的时候读不出数据。总是失败！
Dscr.a51里面照cypress给的开发包更改的内容是：
;; Interface Descriptor
db DSCR_INTRFC_LEN ;; Descriptor length
db DSCR_INTRFC ;; Descriptor type
db 0 ;; Zero-based index of this interface
db 0 ;; Alternate setting
db 4 ;; Number of end points
db 0ffH ;; Interface class
db 00H ;; Interface sub class
db 00H ;; Interface sub sub class
db 0 ;; Interface descriptor string index
;; Endpoint Descriptor
db DSCR_ENDPNT_LEN ;; Descriptor length
db DSCR_ENDPNT ;; Descriptor type
db 02H ;; Endpoint number, and direction
db ET_BULK ;; Endpoint type
db 00H ;; Maximun packet size (LSB)
db 02H ;; Max packect size (MSB)
db 00H ;; Polling interval
;; Endpoint Descriptor
db DSCR_ENDPNT_LEN ;; Descriptor length
db DSCR_ENDPNT ;; Descriptor type
db 86H ;; Endpoint number, and direction
db ET_BULK ;; Endpoint type
db 00H ;; Maximun packet size (LSB)
db 02H ;; Max packect size (MSB)
db 00H ;; Polling interval
;; Endpoint Descriptor
db DSCR_ENDPNT_LEN ;; Descriptor length
db DSCR_ENDPNT ;; Descriptor type
db 01H ;; Endpoint number, and direction
db ET_BULK ;; Endpoint type
db 40H ;; Maximun packet size (LSB)
db 00H ;; Max packect size (MSB)
db 00H ;; Polling interval
;; Endpoint Descriptor
db DSCR_ENDPNT_LEN ;; Descriptor length
db DSCR_ENDPNT ;; Descriptor type
db 81H ;; Endpoint number, and direction
db ET_BULK ;; Endpoint type
db 40H ;; Maximun packet size (LSB)
db 00H ;; Max packect size (MSB)
db 00H ;; Polling interval
HighSpeedConfigDscrEnd:
另外TD_Init()里面改的内容是：
void TD_Init(void) // Called once at startup
{
BREAKPT &= ~bmBPEN; // to see BKPT LED go out TGE
Rwuen = TRUE; // Enable remote-wakeup
CPUCS = ((CPUCS & ~bmCLKSPD) | bmCLKSPD1) ;
// set the slave FIFO interface to 48MHz
SYNCDELAY;
PORTACFG=0x40; // 设置PA.7 为 slcs;
SYNCDELAY;
FIFORESET = 0x80;
SYNCDELAY;
FIFORESET = 0x02;
SYNCDELAY;
FIFORESET = 0x04;
SYNCDELAY;
FIFORESET = 0x06;
SYNCDELAY;
FIFORESET = 0x08;
SYNCDELAY;
FIFORESET = 0x00;
SYNCDELAY;
IFCONFIG |= 0xCB;
SYNCDELAY;
EP1OUTCFG = 0xA0;
EP1INCFG = 0xA0;
SYNCDELAY;
EP2CFG = 0xA2;
SYNCDELAY;
EP6FIFOCFG =0x08;
SYNCDELAY;
EP6CFG = 0xe8;
SYNCDELAY;
PINFLAGSCD = 0x0e;
SYNCDELAY;
FIFOPINPOLAR = 0x00;
SYNCDELAY;
EP6AUTOINLENH = 0x02;
SYNCDELAY;
EP6AUTOINLENH = 0x02;
SYNCDELAY;
EP6AUTOINLENL = 0x00;
SYNCDELAY;
EP6AUTOINLENL = 0x00;
SYNCDELAY;
EP2BCL = 0x80;
SYNCDELAY;
EP2BCL = 0x80;
SYNCDELAY;
// enable dual autopointer feature
AUTOPTRSETUP |= 0x01;
}请问这是什么原因呢？？是固件的问题还是FPGA根本就没把数据写入呢？？ |
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