Activity
From 01/19/2015 to 02/17/2015
02/17/2015
- MA 11:41 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Alter Ethernet MAC
- Thanks Jonathan, that's exactly what I was after.
- MW 11:41 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Alter Ethernet MAC
- You might also try this technique, though I am not sure if the current version of the 3.2 kernel has this command line option implemented:
http://developer.ridgerun.com/wiki/index.php/How_to_pass_ethernet_address_to_linux_kernel_ether... - JC 11:26 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Alter Ethernet MAC
- Mostafa,
We store the mac address on a eeprom on the SoM. The settings stored on this can be accessed using the factoryconfig command in U-boot. Beware that you can brick the SOM if you change some of the other fields. - Hi, is it possible to alter the 'burned-in' MAC address of an L138F? I know that I can change it using 'ifconfig eth0 hw ether XX:XX:XX:XX:XX:XX' once Linux is up and running but was wondering if it's possible to make this change persist...
01/30/2015
- JM 10:35 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityARM-1808F SATA connection problem
- The SW developer told me the kernel version is 2.6.34
Does that affect the quality of link? - MW 07:42 AM MitySOM-5CSX Altera Cyclone V Software Development: RE: Very high TX packet loss on gigabit Ethernet
- Hi Chris,
We've had this module deployed on a couple of different designs as well as the DevKits and I don't think we've had to tweak the pad skews and I know that our packet loss was pretty much negligible. Our validation test uses ... - Hi,
I've been having trouble getting gigabit Ethernet working on a MitySOM-5CSX dev kit using a preloader, u-boot and linux built as per the instructions at [[Building_u-Boot_and_Preloader]] and [[Yocto_for_MitySOM-5CSX]]. It works fin...
01/26/2015
- DV 03:28 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: U-boot not bringing Linux kernel up correctly
- Hi Chris,
We've also just recently found that that commit is causing troubles for our 5CSX dev kit as well. It appears to be adjusting the SDRAM row size to 4GB instead of 1GB in order to workaround an SDRAM errata. We are currently l...
01/23/2015
- CW 04:21 AM MitySOM-5CSX Altera Cyclone V Software Development: RE: U-boot not bringing Linux kernel up correctly
- OK, problem commit seems to be 938156 (http://support.criticallink.com/gitweb/?p=u-boot-socfpga.git;a=commit;h=93815696dce132ff8abc4ab2f4c195339ff821a0). I haven't had a chance to look at it to see if there are any obvious problems here....
- SN 03:21 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Write to SharedMem from DSP and read it from ARM
- Hi mike
your are rigth. I tried it before the
map= (int *)(mmap(0,MAPPED_SIZE,PROT_READ|PROT_WRITE,MAP_SHARED,_fdmem,DDR_RAM_PHYS));
and forgot to correct it back.. Its working now, thanks alot..
01/22/2015
- CW 07:26 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: U-boot not bringing Linux kernel up correctly
- Hi Michael,
p/n: 80-000642RI-1
s/n: 14008623
It's in a dev kit at the moment. Our base board borrowed heavily from the dev kit, so there shouldn't be any significant differences there.
I have tried other modules to no avail.
I did ... - MW 07:52 AM MitySOM-5CSX Altera Cyclone V Software Development: RE: U-boot not bringing Linux kernel up correctly
- Hi Chris,
We will look into it. Can you post the module type and serial number just so we know your exact configuration?
-Mike - Hi,
I've built the preloader, U-Boot, Linux kernel and filesystem as per the instructions at https://support.criticallink.com/redmine/projects/mityarm-5cs/wiki/Building_u-Boot_and_Preloader and https://support.criticallink.com/redmine/p... - MW 07:32 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Write to SharedMem from DSP and read it from ARM
- No you don't need ot use SetSharedMemCfg() or SetPoolCfg() if you are not using the tcDspInbound and tcDspOutbound message passing frameworks.
If you look at the dspapp.cpp file in the MDK, you will see the following parameters: - SN 03:57 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Write to SharedMem from DSP and read it from ARM
- Hi
do i need to use
int tcDspApp::SetSharedMemCfg(tsSharedMemCfg* pConfig)
or
int tcDspApp::SetPoolCfg(uint32_t anNumBufPools, uint32_t *apBufSizes,
uint32_t *apNumBuf, bool abExactMatch)
to use the Iram at 0... - SN 01:59 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Write to SharedMem from DSP and read it from ARM
- Hi thanks for the help, I still got some problems with reading on the ARM.
ARM code:
01/20/2015
- JC 09:31 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Write to SharedMem from DSP and read it from ARM
- You may find this post helpful for transmitting non-string data using dsplink. https://support.criticallink.com/redmine/boards/10/topics/4178?r=4179#message-4179
Note that the tsData::data_ptr requires tcDspApp::ReadMemory() on the AR... - MW 09:18 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Write to SharedMem from DSP and read it from ARM
- DSP code is OK, though if you have the caches enabled for the regions of SRAM or RAM you may need to add a cache write back call to ensure the data is moved to external memory for the ARM to pick up.
-Mike - SN 09:05 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Write to SharedMem from DSP and read it from ARM
- Hi thanks for the quick reply. I found some stuff of how to do it on the ARM side, following the example you pointed out. On the DSP is it okay to write to memory as showed above ?
- MW 07:33 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Write to SharedMem from DSP and read it from ARM
- The linux OS uses virtual memory addresses. You can't access RAM by physical address in the normal case.
You need to use /dev/mem and mmap in the memory you want to access (though it will not be cacheable with this technique). See t... - Hi im trying to write to some shared memory from the DSP and read it back from the ARM. Ive expanded the HelloWorldDSP project, so memory is mapped as in that project. I tried on 4 different memory areas.
DSP code:
01/19/2015
- MW 07:08 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityARM-1808F SATA connection problem
- What version of the kernel are you using?