USB low-full-high speed peripherals Forum Discussions

 Hello!

  I bulit a set of system, which has 68013A and XC9572XL, the communication between them is used slave fifo, and the flags is in index mode, so the flagb is full flag of all usb fifos and the flagc is empty flag.In firmware, the EP2 is set to 2X out buffer, and it's size is 512.When I sent 512 data from pc to cpld through EP2, the flagb and flagc is both high, when I sent 1024 data or sent 512 data twice, the the flag c is high, and the flagb is low, it means that the fifo of EP2 is full.Cpld is ready to receive the 512 data, when the usb fifo is full only, and stoped when the fifo is empty, but I found that the flag is still full, when the cpld received the 512 data over correctly, and new 512 data could not be sent to EP2 next time any more (Even if I reset EP2)using cyconsole.Is the firmware has problem or the cpld program.Thanks a lot! SOS!!

  there are my codes:

  /***************************************firmware*************************************/

 CPUCS = 0x10;                 // CLKSPD[1:0]=10, for 48MHz operation

 SYNCDELAY;

 IFCONFIG = 0x43;

 SYNCDELAY;

 EP2CFG = 0xA2;

 SYNCDELAY;

 EP4CFG = 0x02;

SYNCDELAY;

 EP6CFG = 0xe2;

SYNCDELAY;

 EP8CFG = 0x02;

SYNCDELAY;

FIFORESET = 0x80;    SYNCDELAY;          // activate NAK-ALL to avoid race conditions

FIFORESET = 0x02;    SYNCDELAY;         // reset, FIFO 2

FIFORESET = 0x04;    SYNCDELAY;         // reset, FIFO 4

FIFORESET = 0x06;    SYNCDELAY;         // reset, FIFO 6

FIFORESET = 0x08;    SYNCDELAY;         // reset, FIFO 8

FIFORESET = 0x00;    SYNCDELAY;

EP2FIFOCFG = 0x01;   SYNCDELAY;  

EP2FIFOCFG = 0x11;   SYNCDELAY; 

EP6FIFOCFG = 0x0D;   SYNCDELAY; 

PINFLAGSAB = 0x00;   SYNCDELAY;         // FLAGB - Indexed 满标志低电平有效

PINFLAGSCD = 0x00;   SYNCDELAY;

FIFOPINPOLAR = 0x3C; SYNCDELAY;

EP6AUTOINLENL = 0x00;  SYNCDELAY;

EP6AUTOINLENH = 0x20;  SYNCDELAY;

/**************************************************cpld*****************************************/

always @(negedge clk)//clk=IFCLK

begin

  if(!rst)

  begin

   present_state <= state_idel;

   count_clk <= 10'd0;

   slrd <= 1'b0;

   sloe <= 1'b0;

   config_done <= 1'b0;

   done_delay_cnt <= 3'd0;

   user_control_data <= 20'd0;

  end

  else

  begin

   case(present_state)

   state_idel :

   begin

     if((!usbfifo_full)&(usbfifo_empty))// if only full start 

     begin

       present_state <= state_read;

       slrd <= 1'b1;

       sloe <= 1'b1;

     end

     else if((!usbfifo_empty)&(usbfifo_full)) if only empty stop

     begin

       present_state <= state_idel;

       slrd <= 1'b0;

       sloe <= 1'b0;

     end

   end

   state_read :

   begin

     if(count_clk <= 10'd511) 

     begin

       count_clk <= count_clk + 1'b1;

       if(count_clk == 10'd511)

       begin

         slrd <= 1'b0;

         sloe <= 1'b0;

       end

       else

       begin

         slrd <= 1'b1;

         sloe <= 1'b1;

       end

       case(count_clk)

       0：

         user_control_data[15:0] <= fddata;

       1:

         user_control_data[19:16] <= fddata[3:0];

       endcase

     end

     else if(count_clk == 10'd512)

     begin

       count_clk <= 10'd0;

       config_done <= 1'b1;

       present_state <= state_delay;

     end

   end

   state_delay :

   begin

     if(done_delay_cnt<=3'd6)

       done_delay_cnt <= done_delay_cnt + 1'b1;

     else

     begin

       config_done <= 1'b0;

       done_delay_cnt <= 3'd0;

       present_state <= state_idel;

     end

   end

   default :

     present_state <= state_idel;

   endcase

 end

end

Hello

I try to setup an isochronous endpoint to read data from an external application. As it did not work out, I setup the following minimal example which does not work either. The example should simply feed the computer with data.

WORD i;  REVCTL = (1 << 1) | (1 << 0); // DYN_OUT, ENH_PKT SYNCDELAY;  CPUCS = (2 << 3) | (1 << 1); // 48MHz CPU clock, CLKOUT enable SYNCDELAY;  IFCONFIG = (1 << 7) | (1 << 6) | (1 << 3) | (3 << 0); // internal 48MHz FIFO clock, asynchronous I/O, slave FIFO SYNCDELAY;  EP2CFG = 0; // EP2: off SYNCDELAY; EP4CFG = 0; // EP4: off SYNCDELAY; EP6CFG = (1 << 7) | (1 << 6) | (1 << 4) | (2 << 0); // EP6: valid, in, isochronous, 512B, double buf SYNCDELAY; EP8CFG = 0; // EP8: off SYNCDELAY;  RESETFIFOS();  EP2FIFOCFG = 0; // EP2: off SYNCDELAY;  EP4FIFOCFG = 0; // EP4: off SYNCDELAY;  EP6FIFOCFG = (1 << 0); // EP6: 16bit //EP6FIFOCFG = (1 << 3) | (1 << 0); // EP6: AUTOIN, 16bit SYNCDELAY;  EP8FIFOCFG = 0; // EP8: off SYNCDELAY;  PORTACFG = 0; SYNCDELAY;  FIFOPINPOLAR = 0; // all FIFO control pins low-active SYNCDELAY;  USE_USB_INTS();  ENABLE_SUDAV(); ENABLE_USBRESET(); ENABLE_HISPEED();  EA = 1;  RENUMERATE_UNCOND();  while(TRUE) {     for(i=0;i<512;i++){         EP6FIFOBUF = 0xee;     }     EP6BCH = 0x02;     SYNCDELAY;     EP6BCL = 0x00;     SYNCDELAY; }

Whenever I try to read data from the endpoint, the FX2 always reports that there is no data available. How to fix this problem?

Thank you for your support!

Kind regards,
Peter

Good afternoon all,

Why we need INT0(PA0) and INT1(PA1) pins of cy7c68013a-56 pin? When we should use this pins?

Regards

Vimala

Good afternoon all,

In our project we are using one cypress board(56pin breakout board) with FPGA(spartan 3AN). We should interface cypress with FPGA board. For this we refered AN61345 and AN63620 application note from cypress. We downloaded sample code mentioned in AN61345 application note.

After we program cypress board by using slave.hex file and slavefifo.bit file to FPGA, How to see the output of this two code?

Regards

Vimala

 Good morning all,

I want to download the USB control center utility software which is given in application note of AN61345(pg-10). Please go through the below attached document.

So, can you please send me the link where i will get this software?

Thank you,

Regards

Vimala

 Good morning all,

We go through the EZ-USB contents and tutorials document, in that they have given(pg-10) about EZ-USB Control panel application. We follow the steps given in that page, but in start->peogram->cypress-> usb we not finding ez-usb control panel application.

So, Can you please tell me where we will get this one? Or send me the link to download this application.