USB low-full-high speed peripherals Forum Discussions

We have a scenario in which we are developing a board application (including two PSoCs) for an international customer.  Our present Silicon Laboratories USB bridge chip requires SiLabs drivers to be installed on the user's machine.  The IT departments of many customers (including this company) prohibit the loading of non-standard external drivers in their employees machines.  From the CY7C65215 datasheet it appears that the standard Windows driver will/may be used if all we are doing is UART-to-USB traffic.  Nothing special.  However, the CYUSBS236 development kit is showing no way around installation and use of the Cypress driver.

We found we could force Windows to load the standard Microsoft driver by modifying the VID/PID,  Tests with a terminal emulator showed the USB bridge to be functioning.  However, after changing the VID/PID we can no longer change it back to the Cypress default because we can't list it in the configuration utility anymore.  The chip is functional, but bricked from a configuration standpoint.  Is there a way to unbrick it? 

This can't be this difficult.  How do we force the use of the standard Windows driver which we believe is USBSER.SYS?

Thanks.

Hello!

We encountered difficulties in the development of usb tv dongle, and could  please requested us some technical support?

Hi all,

I am trying to use isoc transfer in CY7C68013. I have 2 interface settings: alt-0 for bulk transfer and alt-1 for isoc transfer.

After device plugged in PC, the default setting alt-0 works. Then I select alt-1 and it also works. But when I select altl-0 again, the transfer failed.

I tested this using CYStreamer and ControlCenter. I also used Bus hound to capture all the transfer, as following figure.

I can not figure out why it cannot get the endpoint back to alt-1 setting correctly. What may be the reason?

I am using the following two functions (set_ep2_isoc_mode and set_ep2_bulk_mode) to set the interface in DR_SetInterface.

Here is the code snippet.

BOOL DR_SetInterface(void)    

{

  AlternateSetting = SETUPDAT[2];

SYNCDELAY;

switch(AlternateSetting)

{

case alt0_bulk_in:

set_ep2_bulk_mode();

break;

case alt1_isoc_in:

set_ep2_isoc_mode();

break;

}

   return(TRUE);         

}

// for alt-setting-0

void set_ep2_bulk_mode(void)

{

// only use EP-1 out and EP-2 in, disable EP1_IN and EP4.6.8.

EP1INCFG &= 0x7F;

SYNCDELAY;

EP4CFG &= 0x7F;     // EP4 not valid

SYNCDELAY;

EP6CFG &= 0x7F;     // EP6 not valid

SYNCDELAY;

EP8CFG &= 0x7F;     // EP8 not valid

SYNCDELAY;

// configure EP-1 bulk-out mode

EP1OUTCFG = 0xA0; // valid, bulk

  SYNCDELAY;

EP1OUTBC = 0x40; // arm the EP1 OUT endpoint by writing to the byte count

SYNCDELAY;

// configure EP-2 as bulk-IN

EP2CFG = 0xE8; // BULK-IN, 0xE0: 512*4 bufferred, 0xE8: 1K*4 bufferred

SYNCDELAY;

// Clear out any committed packets

FIFORESET = 0x80; // reset all FIFOs

SYNCDELAY;

FIFORESET = 0x82;

SYNCDELAY;

FIFORESET = 0x84;

SYNCDELAY;

FIFORESET = 0x86;

SYNCDELAY;

FIFORESET = 0x88;

SYNCDELAY;

FIFORESET = 0x00; // clear NAKALL bit to resume normal operation

SYNCDELAY;

EP2FIFOCFG = 0x0C; // b3:AUTOIN=1, b2:ZEROLEN=1, b0:WORDWIDE=0

SYNCDELAY;

EP2AUTOINLENH = 0x02; // Auto-commit 0x0200 = 512B, 0x0400=1KB

SYNCDELAY;

EP2AUTOINLENL = 0x00;

SYNCDELAY;

// Reset data toggle to 0

TOGCTL = 0x12;  // EP2 IN

TOGCTL = 0x32;  // EP2 IN Reset

return;

}

// for alt-setting-1

void set_ep2_isoc_mode(void)

{

// only use EP-1 out and EP-2 in, disable EP1_IN and EP4.6.8.

EP1INCFG &= 0x7F;

SYNCDELAY;

EP4CFG &= 0x7F;     // EP4 not valid

SYNCDELAY;

EP6CFG &= 0x7F;     // EP6 not valid

SYNCDELAY;

EP8CFG &= 0x7F;     // EP8 not valid

SYNCDELAY;

// configure EP-1 bulk-out mode

EP1OUTCFG = 0xA0; // valid, bulk

  SYNCDELAY;

EP1OUTBC = 0x40; // arm the EP1 OUT endpoint by writing to the byte count

SYNCDELAY;

// configure EP-2 as isoc-IN

EP2CFG = 0xD8;  // ISOC-IN, SIZE=1024, BUF=4x

SYNCDELAY;

FIFORESET = 0x80; // reset all FIFOs

SYNCDELAY;

FIFORESET = 0x82;

SYNCDELAY;

FIFORESET = 0x84;

SYNCDELAY;

FIFORESET = 0x86;

SYNCDELAY;

FIFORESET = 0x88;

SYNCDELAY;

FIFORESET = 0x00; // clear NAKALL bit to resume normal operation

SYNCDELAY;

EP2FIFOCFG = 0x0C; // b3:AUTOIN=1, b2:ZEROLEN=1, b0:WORDWIDE=0

SYNCDELAY;

EP2AUTOINLENH = 0x04; // Auto-commit

SYNCDELAY;

EP2AUTOINLENL = 0x00;

SYNCDELAY;

EP2ISOINPKTS = 0x83; //b7 = AADJ

SYNCDELAY;

return;

}

Any help will be appreciated.

Thanks,

Zheng

We are using CYUSB3065-BZXC. In our system, GPIO 17-GPIO25 are used as output. Our problem is: " if " io_cfg.gpioSimpleEn[0]  = 0x3FE0000;, etc. using GPIO17-25"，then  "CyU3PDeviceConfigureIOMatrix (&io_cfg)" return fail;and if"io_cfg.gpioSimpleEn[0]  = 0x3E00000”; Then "CyU3PDeviceConfigureIOMatrix (&io_cfg)" return success; and GPIO21-25 are OK。How to use GPIO 17-20 correctly？

Can I use endpoint3 with FX2LP?

I need endpoint 1,2,3 with FX2LP.

Hello,

what is the minimum initial ifclk clock cycles in order to sample data lines in fx2lp?

after how many clcok cycles from the master,fx2lp is going to sample data lines in slavefifo interface?

regards,

geetha.

I have to migrate some c# hostapplications, depending on AN21XX based controller, which are using EZBUSB.Sys driver to WIN10 64bit.

Can you please give me some hints for the recommended method?

Is it possible to use the Cypress Suite USB 3.4.7 ?

Hi all,

I am using CY7C68013 to design a USB2.0 device. I am confused by the buffer settings in the firmware.

In my firmware, I use EP2 in slave-FIFO bulk-IN mode.

My questions are:

1. The maxPacketSize (payload) for bulk EP2 can only be 512B, right?  If so:

2. When setting EP2CFG, can I use the buffer size of 1024 for bulk EP2? Or I can only use 512 because maxPacketSize=512?

3. When auto-IN mode is used, can I set the EP2AUTOINLEN as 1024 for bulk EP2? Or I can only use 512 because maxPacketSize=512?

From the endpoint configuration-12, it seems that EP buffer can be set as 1024x4, but I am not sure if this only valid for iso mode. From the technical reference manual and datasheet, I didn't find clear presentation about this.

I set the EP-buffer=512, autoLength=512, the device works. But when multiple devices work simultaneously, some data will lost. So, I am thinking to make full use of the FIFO buffer, like configuration-12, in Bulk EP mode.

Thanks,

Zheng

Dear Madam/Sir:

         We attached BDAdriver_interrupt_working_current, but not sure how to compile it, Would you please kindly answer these question:

          1、what is the compile enviorment ? linux ?windows?

          2、If it is linux enviorment, the Makefile can not work.

          3、If it is windows enviorment, what is the IDE should be used to compile it?

          Beside, would you please kindly give us a BDA driver guide for our ATSC tuner dongle?

          Sincerely Thanks