[Fx2lib-devel] FX2 Firmware device descriptor read/64, error -110

[Christoph K. <chr...@we...>]

Hi everyone,

I am new to the Cypress FX2 and USB development. Using Linux Mint 17.

I compiled the example firmware.

With cyc2fxprog it downloads to the fx2.
When I run it, I receive the following Kernel Error:

Aug 13 13:10:14 workstation kernel: [17091.746996] usb 1-1: new
high-speed USB device number 35 using ehci-pci
Aug 13 13:10:29 workstation kernel: [17106.846587] usb 1-1: device
descriptor read/64, error -110
Aug 13 13:10:44 workstation kernel: [17122.050051] usb 1-1: device
descriptor read/64, error -110
Aug 13 13:10:44 workstation kernel: [17122.265909] usb 1-1: new
high-speed USB device number 36 using ehci-pci
Aug 13 13:10:59 workstation kernel: [17137.365421] usb 1-1: device
descriptor read/64, error -110
Aug 13 13:11:14 workstation kernel: [17152.568983] usb 1-1: device
descriptor read/64, error -110
Aug 13 13:11:15 workstation kernel: [17152.784822] usb 1-1: new
high-speed USB device number 37 using ehci-pci
Aug 13 13:11:20 workstation kernel: [17157.800814] usb 1-1: device
descriptor read/8, error -110
Aug 13 13:11:25 workstation kernel: [17162.916650] usb 1-1: device
descriptor read/8, error -110
Aug 13 13:11:25 workstation kernel: [17163.132336] usb 1-1: new
high-speed USB device number 38 using ehci-pci
Aug 13 13:11:30 workstation kernel: [17168.148372] usb 1-1: device
descriptor read/8, error -110
Aug 13 13:11:35 workstation kernel: [17173.264055] usb 1-1: device
descriptor read/8, error -110
Aug 13 13:11:35 workstation kernel: [17173.367771] hub 1-0:1.0: unable
to enumerate USB device on port 1
Aug 13 13:11:36 workstation kernel: [17173.683559] usb 4-1: new
full-speed USB device number 10 using ohci-pci
Aug 13 13:11:51 workstation kernel: [17188.807165] usb 4-1: device
descriptor read/64, error -110
Aug 13 13:12:06 workstation kernel: [17204.034600] usb 4-1: device
descriptor read/64, error -110
Aug 13 13:12:06 workstation kernel: [17204.274435] usb 4-1: new
full-speed USB device number 11 using ohci-pci
Aug 13 13:12:21 workstation kernel: [17219.397975] usb 4-1: device
descriptor read/64, error -110
Aug 13 13:12:37 workstation kernel: [17234.625482] usb 4-1: device
descriptor read/64, error -110
Aug 13 13:12:37 workstation kernel: [17234.865358] usb 4-1: new
full-speed USB device number 12 using ohci-pci
Aug 13 13:12:42 workstation kernel: [17239.882243] usb 4-1: device
descriptor read/8, error -110
Aug 13 13:12:47 workstation kernel: [17244.997856] usb 4-1: device
descriptor read/8, error -110
Aug 13 13:12:47 workstation kernel: [17245.236756] usb 4-1: new
full-speed USB device number 13 using ohci-pci
Aug 13 13:12:52 workstation kernel: [17250.253374] usb 4-1: device
descriptor read/8, error -110
Aug 13 13:12:57 workstation kernel: [17255.369012] usb 4-1: device
descriptor read/8, error -110
Aug 13 13:12:57 workstation kernel: [17255.472389] hub 4-0:1.0: unable
to enumerate USB device on port 1

Google told me, error -110 means something aboult not enough power for
the usb device.
So I experimented with the values for
    .db    0xE0                             ; attrs = bus powered, no wakeup
    .db    0x00                             ; max power = 100ma

but nothing changed.



I also tried to download the firmware with fxload.
But here I receive the error:

fxload -vvv -t fx2 -D /dev/bus/usb/001/039 -I build/firmware.ihx

microcontroller type: fx2
single stage:  load on-chip memory
open RAM hexfile image build/firmware.ihx
stop CPU
** LINE: :040000000201B9320E
** LINE: :01000B0032C2
write on-chip, addr 0x0000 len    4 (0x0004)
... ... ...
can't write 188 bytes external memory at 0x3e00
unable to download build/firmware.ihx

What am I doing wrong?


Where can I find a mapping between error description and numercial error
code?
All I found until now are error codes without number.

Best Regards,
Ck