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libusb_bulk_tranfer problem
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libusb_bulk_tranfer problem
by Ford, Pat
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Hi All;
I have a device that requires a program to be loaded through a cy7C64613 chip. I've downloaded the bootloader for the CY7C now I have to pass the fpga program through it. I get error -7 (libusb_timeout). Thanks Pat Bus 005 Device 051: ID XXXX:YYYY Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.00 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0xXXXX idProduct 0xXXXX bcdDevice 0.02 iManufacturer 1 Somecompany Corp iProduct 2 USB Device iSerial 3 0666 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 39 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 255 Vendor Specific Class bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Device Status: 0x0000 (Bus Powered) interesting usbmon section ffff88012d1969c0 1378138149 C Co:5:051:0 0 0 ffff88012d1969c0 1379073886 S Bo:5:051:2 -115 64 = ff04d4bd f8da7fff df7fdf75 7fffffaf df767bbf ddd65d6f bd7f7ffd f5d75f7f ffff88012d1969c0 1379075156 C Bo:5:051:2 0 64 > ffff88012d1969c0 1379075225 S Bo:5:051:2 -115 64 = fdffffff f7ffffdf ffffffff ffffff7f ef7fffff ffffffff ff7ffcff fdf0c36f ffff88012d1969c0 1384082181 C Bo:5:051:2 -2 0 ffff88012d1969c0 1384082296 S Bo:5:051:2 -115 64 = 1f7df7dd e77df7f9 679f7dfc fdf7df7f fffd77ff ffdf7ffd fdff7f7f fdfdffff ffff88012d1969c0 1389090208 C Bo:5:051:2 -2 0 ffff88012d1969c0 1389090321 S Bo:5:051:2 -115 64 = ffffffff ffffffff ffffffcf ffffcf3f fffeffdf dfffffff ff7fffff ffffffff ffff88012d1969c0 1394098234 C Bo:5:051:2 -2 0 ffff88012d1969c0 1394098353 S Bo:5:051:2 -115 64 = fefbef7f f6ffffff ffffffff ffbfffff ffffffff ffffffff ffffffff ffffffff relevent code section int get_usb_device(void) { int i=0, err=0, ret=0; uint16_t iGpif=0; ret = libusb_get_device_list(0, &devs2); if (ret < 0) return -31; while ((dev = devs2[i++]) != NULL) { ret = libusb_get_device_descriptor(dev, &desc); if (ret < 0) fprintf(stderr,"\n failed to get descriptor:"); if (desc.idVendor == Id ) { printf("%04x:%04x (bus %d, device %d)\n",desc.idVendor, desc.idProduct, libusb_get_bus_number(dev), libusb_get_device_address(dev)); fprintf(stderr,"found an initialized Device\n"); ret = libusb_open(dev, &inited); if (ret < 0) { inited = NULL; exit (-30); } err = libusb_claim_interface(inited, 0); if(err != LIBUSB_SUCCESS) fprintf(stderr, "libusb_claim_interface 0 returned %d\n", err); printf("Rad device attached, SN = %d\n",desc.iSerialNumber); // now we need to stop the device and download the fpga program if (!TransferGpifIn(0x118,&iGpif)) // make sure the device is not running fprintf(stderr,"ERROR: usb_device Could not read status from 0x118 Gpif\n"); if (!download_fpga(inited,"fpga.hex")) { fprintf(stderr,"ERROR: usb_device Failed to download fpga.hex\n"); return -33; } break; } } if(!inited) { fprintf(stderr, "libusb failed to find an initialized rad\n"); exit (-32); } printf("\n"); return 1; } int download_fpga (libusb_device_handle *dh, char *fname) { int size, transferred, ret=0, i=0,x=0; int chunkCount=0, bytes=0, total=0; char szData[16]; unsigned char ptBinFpgaData[MAX_FPGA_DATA_LEN]; unsigned char *cur; infile = fopen (fname, "rb"); if (infile == NULL) { printf (" \n FileNotFound %s\n", fname); // //syslog(LOG_ERR,"Logic file not found %s", inputfile); exit(EXIT_FAILURE); } (void)fseek (infile, 0, SEEK_END); size = ftell (infile); if(size ==0) { printf ("\nHex file (%s )for the fpga is empty",fname); return (-1); } printf ("\n size of hex file is %d",size); rewind (infile); // table is ascii, we need to change it to hex for (i=0 ; (!feof(infile)) && (i<(MAX_FPGA_DATA_LEN * 2)) ; i++) { szData[0] = (char)fgetc(infile); szData[1] = (char)fgetc(infile); szData[2] = 0; sscanf(szData,"%x",&ptBinFpgaData[i]); } if (size > MAX_FPGA_DATA_LEN) { printf ("\nHex file (%s )for the fpga is too large",fname); exit(EXIT_FAILURE); } if ( !TransferGpifOut(0x102, 1) ) { printf("\nERROR: During Start of FPGA download"); return(-2); } cur=ptBinFpgaData; // we need to split the buffer into 64byte chunks chunkCount = (size + CHUNK_SIZE - 1) / CHUNK_SIZE; for (x=0; x<=chunkCount; x++) { if (x==chunkCount-1 && size % CHUNK_SIZE) bytes = size % CHUNK_SIZE; else bytes = CHUNK_SIZE; cur = ptBinFpgaData + x*CHUNK_SIZE; ret = libusb_bulk_transfer (dh, FPGA_PIPE, cur, bytes, &transferred, 5000); if(errno != 0) perror("download FPGA Error "); if(ret < 0) printf("\n libusb_bulk_transfer returned %d bytes = %d",ret,bytes); if (transferred != bytes) { printf("\nERROR: During bulk write FPGA:error %d should equal %d(size) %d bytes transferred chunk %d\n", transferred, bytes,transferred,x ); //return(-3); } else { printf("\nSucess: During bulk write FPGA %d bytes transferred chunk %d\n",transferred,x); total+=bytes; } } if ( !TransferGpifOut(0x102, 0) ) { printf("ERROR: During stop FPGA"); return(-4); } printf("\n %d bytes transferred",transferred); return 4; } ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Libusb-devel mailing list Libusb-devel@... https://lists.sourceforge.net/lists/listinfo/libusb-devel |
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Re: libusb_bulk_tranfer problem
by Tim Roberts
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Ford, Pat wrote:
> I have a device that requires a program to be loaded through a > cy7C64613 chip. I've downloaded the bootloader for the CY7C now I have > to pass the fpga program through it. > I get error -7 (libusb_timeout). > Stock Cypress bootloaders don't know anything about downloading FPGAs. That all has to be implemented in your own firmware. From here, it looks like the device accepted the first 64 bytes then rejected the next 64. Without knowing the firmware, there's not a lot we can do. I'm a little surprised at your loading code. Usually, a file with a .hex extension is an Intel HEX format file. That includes addresses and checksums -- a lot more than just raw bytes to be sent. It's possible you're just using the same extension for a raw dump of the FPGA load, but it's worth asking. -- Tim Roberts, timr@... Providenza & Boekelheide, Inc. ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Libusb-devel mailing list Libusb-devel@... https://lists.sourceforge.net/lists/listinfo/libusb-devel |
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