Mity CPU Platforms » MityDSP-L138 (ARM9 Based Platforms)

09/02/2014

JC 08:33 AM Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module

Have you made any progress with this problem? Jonathan Cormier

08/19/2014

HK 11:31 AM Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module

yes,
echo "146" > /sys/class/gpio/export --> sh: write error: Invalid argument
it may be that fpga_gpio module is not runing
Thank you.
HYUNG KI KIM

JC 08:50 AM Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module

Did you mean Jonathan Cormier

HK 08:26 AM Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module

HYUNG KI KIM wrote:
> I'm tryint to control FPGA of GPIO on the linux driver side with MityL138-DSP(L138-FI-236-RL) mdule.
> ...
HYUNG KI KIM

HK 08:24 AM Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module

HYUNG KI KIM wrote:
> I'm tryint to control FPGA of GPIO on the linux driver side with MityL138-DSP(L138-FI-236-RL) mdule.
> ...
HYUNG KI KIM

HK 08:23 AM Software Development: How to probe the fpga_ctrl & fpga_gpio.ko module

I'm tryint to control FPGA of GPIO on the linux driver side with MityL138-DSP(L138-FI-236-RL) mdule.
and, loading the myFPGA.bin , fgpa_ctrlko, fpga_gpio.ko module is successfule.
also, test tool of fpgautil is work well.
modprob... HYUNG KI KIM

08/18/2014

AD 04:31 PM PCB Development: RE: Protecting MityDSP module during development

Hi Udi,
Yes the FPGA I/Os can be damaged by sinking too much current - powered or off. The I/Os have protection diodes to the VCCO and GND rails that can withstand a max of 10mA per pin. Adding series resistors to the I/O pins that ... Adam Dziedzic

UF 03:39 PM PCB Development: Protecting MityDSP module during development

We just fried a MityDSP L138F module, and I'm not sure why. I'm suspecting that the problem was that we had an ADC module connected to it (via FPGA) while the L138F module was off. I'm measuring 1.8V on some of the ADC output pins. Cans ... Udi Fuchs

08/11/2014

JC 09:21 AM Software Development: RE: DSP HelloWorld Compile with gcc 4.3.3

tftp stalls when I set the block size larger than the standard MTU size (1500 - overhead = 1468). According to the source the block size is already set to this max value. To accept fragmented packets the source says to enable CONFIG_IP_... Jonathan Cormier

JC 09:06 AM Software Development: RE: DSP HelloWorld Compile with gcc 4.3.3

Glad that you got it working. I've never used the block size feature. I'll check out what affect it has on my tftp downloads. Jonathan Cormier