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

06/29/2011

MW 08:34 PM Software Development: RE: mtdblock kernel crash

Oh, one other question....
Do you have anything running on the DSP while this is going on? Or is it still in IDLE / RESET?
Michael Williamson

MW 08:32 PM Software Development: RE: mtdblock kernel crash

1. OK.
2. Fair enough, didn't catch that originally.
3. Sure, I'll get you something tomorrow.
Couple more questions, if you don't mind....
Do you happen to know what git revision you were using when life was good? Do you ha... Michael Williamson

ZC 07:20 PM Software Development: RE: mtdblock kernel crash

Thanks for the quick response!
1. Toolchain:
gcc version 4.5.1 (Sourcery G++ Lite 2010.09-50)
2. Root FS is in ram (NOT mtdblock0):
Kernel command line: mem=48M console=ttyS1,115200n8 root=/dev/ram0 rw initrd=0xc1180000,16M
3.... Zoltan Csizmadia

MW 06:37 PM Software Development: RE: mtdblock kernel crash

Can you try the same command without mounting /dev/mtdblock0 as the rootfs? (e.g., stay in your ram initrd filesystem)
It's a little weird that you're trolling around /dev/mtdblock0 NAND if you have it mounted as your root filesystem.... Michael Williamson

ZC 06:34 PM Software Development: RE: mtdblock kernel crash

Mike,
It was a clean copy. I've made changes only to make it buildable from Windows (Cygwin). But those changes were made for my previous kernel revision.
Btw "hexdump -C -n 64 /dev/mtdblock1" works fine.
Zoltan Zoltan Csizmadia

MW 06:19 PM Software Development: RE: mtdblock kernel crash

Hi Zoltan,
We'll need to try to reproduce this here. It may take a day to get to it.
When you rebuilt, did you do a make clean first? Or did you pull a clean copy of the kernel down?
-Mike
Michael Williamson

ZC 05:35 PM Software Development: RE: mtdblock kernel crash

This is what I did to crash the kernel:
2. echo Test > /dev/mtdblock9
Zoltan Csizmadia

ZC 05:34 PM Software Development: mtdblock kernel crash

Hi,
I've got the latest linux kernel image, defconfig'd it, enabled SPI flashes, and nuilt the kernel.
1. If I access mtdblock0 (e.g. "hexdump -C -n 64 /dev/mtdblock0", gives me the following errors:
end_request: I/O error, dev ... Zoltan Csizmadia

06/28/2011

GG 05:00 PM Software Development: RE: Where can I get the files listed on the DSPLink Hello World wiki?

Hi Marc,
I just sent you the additional files you need. Let us know if you run into any further issues.
Thanks,
\Greg Gregory Gluszek

ML 10:48 AM Software Development: RE: Where can I get the files listed on the DSPLink Hello World wiki?

Hi,
I am also having trouble finding the prerequisite files for the PC side (dsp_main.cpp, dspcore.lib, ect). I downloaded the latest tarball release but couldent find any of them in it.
-Marc Marc Lichtman

06/13/2011

RG 05:21 PM FPGA Development: RE: FPGA configuration

Hi Mike,
FYI, I just had a chance to try a bad configuration file, and the INIT pin was indeed low after programming.
Thanks,
Rob Rob Gillis

06/06/2011

GG 10:35 AM Software Development: RE: Where can I get the files listed on the DSPLink Hello World wiki?

Hi Mads,
Most of the files you need are in the latest tarball release. I've sent you the remaining files, which will be added as a part of our next release.
Let us know if you have any further issues.
\Greg Gregory Gluszek

MC 07:14 AM Software Development: RE: Where can I get the files listed on the DSPLink Hello World wiki?

Hi
I am also looking for these files...
Could you email me them too?

Many thanks,
Mads Mads Lind Christiansen

06/02/2011

RG 12:17 PM Software Development: RE: ECC

Ok, Thanks for the quick response. Rob Gillis

MW 12:11 PM Software Development: RE: ECC

We are using mobile DDR2 x16 for our modules. There is no support for ECC.
-Mike
Michael Williamson

RG 11:56 AM Software Development: ECC

Hello,
Does the MityDSP L138 module support ECC for the DDR2 RAM? If so, is there software support to enable this feature?
Thanks,
Rob Gillis
Rob Gillis