USB superspeed peripherals Forum Discussions

Hi,

Signed driver for FX3 DVK are now available as part of the SDK/SuiteUSB installation availabel at http://www1.cypress.com/?rid=57990

Regards,

Anand

 Hello,

     I am noticing an issue when I transmit data from USB to the GPIF interface over a Multi socket DMA channel. The issue that I notice is that second DMA thread, (which in is defined as dmaMultiConfig.consSckId[1] = CY_U3P_PIB_SOCKET_3; )  will skip the first 32-bit word (on a 32bit bus). Has anyone else noticed problems with Multiconfig missing the first word of a transaction?

Thank you

Dear Sir

I get a problem of my FX3 superspeed design, and it has  confused me for two weeks, so please help me.

In my design I use many_to_one DMA channel which has 2 valid socket and every socket has 4 valid buffers，my problem is everytime I start a new transfer I always lose  random data after 8buffers have transfered，beside this my data received is continuous.
I am sure that FPGA always sends data  a little later than PC receives data.

Hi,

Coding a CyU3PDebugPrint version for additional functionality, perhaps others have tried the same.  The purpose is to send back a buffer of formatted strings, in order to debug the MCU.  See below.  This compiles, but I have a problem with the link phase as noted lower in the message.  Not really sure what I am missing.

Has anyone done something like this?

Have an idea of what I am possibly missing?

This only now happens due to the including of va_list, va_start, va_end due to stdarg.h

#include <stdio.h>

#include <stdarg.h>

int CyU3PDebugPrintx(int a, char *format, ...) {

uint8_t src[1024];

va_list arg;

int cnt;

for (cnt = 0; cnt<LogBufferSizeLimit; cnt++) {

src[cnt] = 0;

}

va_start(arg, format);

vsprintf((char *)src, format, arg);

perror((char*)src);

va_end(arg);

cnt = strlen((char*)src);

DebugPipeLogging(src, cnt);

return 0;

} // CyU3PDebugPrintx

**** Build of configuration Release for project USBVideoClass ****

cs-make all 

'Building file: ../uvc.c'

'Invoking: ARM Sourcery Windows GCC C Compiler'

arm-none-eabi-gcc -DTX_ENABLE_EVENT_TRACE -DDEBUG -DCYU3P_FX3=1 -D__CYU3P_TX__=1 -I"C:\Cypress\EZ-USB FX3 SDK\1.2\\firmware\u3p_firmware\inc" -I. -O3 -Wall -c -fmessage-length=0 -MMD -MP -MF"uvc.d" -MT"uvc.d" -mcpu=arm926ej-s -mthumb-interwork -g -gdwarf-2 -o"uvc.o" "../uvc.c"

'Finished building: ../uvc.c'

' '

'Building target: cyfxuvc.elf'

'Invoking: ARM Sourcery Windows GCC C Linker'

arm-none-eabi-gcc  ./cyfx_gcc_startup.o ./cyfxtx.o ./cyfxuvcdscr_BAE.o ./minicam_uart_BAE.o ./uvc.o    -T"C:\Cypress\EZ-USB FX3 SDK\1.2\/firmware/common/fx3.ld" -nostartfiles -Wl,-Map,cyfxuvc.map -Wl,-d -Wl,--no-wchar-size-warning -Wl,--gc-sections -Wl,--entry,CyU3PFirmwareEntry "C:\Cypress\EZ-USB FX3 SDK\1.2\\firmware\u3p_firmware\lib\fx3_release\cyfxapi.a" "C:\Cypress\EZ-USB FX3 SDK\1.2\\firmware\u3p_firmware\lib\fx3_release\cyu3threadx.a" "C:\Cypress\EZ-USB FX3 SDK\1.2\\firmware\u3p_firmware\lib\fx3_release\cyu3lpp.a"  "C:\Cypress\EZ-USB FX3 SDK\1.2\\arm-none-eabi\lib\libc.a" "C:\Cypress\EZ-USB FX3 SDK\1.2\\lib\gcc\arm-none-eabi\4.5.2\libgcc.a" -mcpu=arm926ej-s -mthumb-interwork -g -gdwarf-2 -o"cyfxuvc.elf"

C:\Cypress\EZ-USB FX3 SDK\1.2\\arm-none-eabi\lib\libc.a(lib_a-sbrkr.o): In function `_sbrk_r':

sbrkr.c:(.text+0x18): undefined reference to `_sbrk'

C:\Cypress\EZ-USB FX3 SDK\1.2\\arm-none-eabi\lib\libc.a(lib_a-writer.o): In function `_write_r':

writer.c:(.text+0x20): undefined reference to `_write'

C:\Cypress\EZ-USB FX3 SDK\1.2\\arm-none-eabi\lib\libc.a(lib_a-closer.o): In function `_close_r':

closer.c:(.text+0x18): undefined reference to `_close'

C:\Cypress\EZ-USB FX3 SDK\1.2\\arm-none-eabi\lib\libc.a(lib_a-fstatr.o): In function `_fstat_r':

fstatr.c:(.text+0x1c): undefined reference to `_fstat'

C:\Cypress\EZ-USB FX3 SDK\1.2\\arm-none-eabi\lib\libc.a(lib_a-isattyr.o): In function `_isatty_r':

isattyr.c:(.text+0x18): undefined reference to `_isatty'

C:\Cypress\EZ-USB FX3 SDK\1.2\\arm-none-eabi\lib\libc.a(lib_a-lseekr.o): In function `_lseek_r':

lseekr.c:(.text+0x20): undefined reference to `_lseek'

C:\Cypress\EZ-USB FX3 SDK\1.2\\arm-none-eabi\lib\libc.a(lib_a-readr.o): In function `_read_r':

readr.c:(.text+0x20): undefined reference to `_read'

collect2: ld returned 1 exit status

cs-make: *** [cyfxuvc.elf] Error 1