Activity
From 03/03/2014 to 04/01/2014
04/01/2014
- MW 05:23 PM Software Development: RE: DSP- EDMA Transmission problem
- Actually,
I was going to suggest transferring to IRAM, or if you need to transfer to DDR, doing a chained transfer:
EMIFA -> IRAM, then IRAM->DDR
Sounds like you've seen improvement in moving into the IRAM. Unfortunately, our Q... - RK 04:53 PM Software Development: RE: DSP- EDMA Transmission problem
- To be more precise,
Is there any way to change the EDMA3 configuration to reduce transfer time ? I want to transfer the data from FPGA's 16-bit EMIFA bus to IRAM, where I think the memory bus is 32-bit. For now I am using the unchanged ...
03/31/2014
- RK 05:20 AM Software Development: RE: DSP- EDMA Transmission problem
- Hello again,
I am writing because I have the following problem:
I succesfully transfer the data, but the transfer time seems to take too much time. I am transferring 4096 16-bit words using the modified FPGA EMIFA interface that takes ...
03/26/2014
- RK 03:16 PM Software Development: RE: DSP- EDMA Transmission problem
- Solved !
You can use the IRAM section. It is disabled as cache in the current configuration .tcf file.
Best regards
03/24/2014
- MW 09:57 AM Software Development: RE: GEL-file for MityDSP-L138F
- Yes. By default, the core should be 1.2V on power up.
-Mike
- Hi,
that gel-file need to use for mitydsp-L138F with 1.2 V Core?
Thanks
03/23/2014
- FT 08:05 PM FPGA Development: RE: Manage LX16 and LX45 at runtime
- Thanks a lot Mike!
As usual, your support is impressive!
Ticket close.
-François - MW 05:18 PM FPGA Development: RE: Manage LX16 and LX45 at runtime
- The model number for the part should be readable in the factory configuration information in the I2C prom. The model number includes a letter code for the FPGA type for the SOM. There is a factoryconfig utility program that can be run ...
- We have a product based on MityDSP-L138F using either LX16 and LX45 fpga cores.
Q1) Can we detect which FPGA core is running at runtime from Linux?
Q2) Is program_fpga.sh script and fpga_ctrl.ko module are able to handle both at ru...
03/19/2014
- Hello everyone,
I have a MityARM 1808F and I am facing a strange issue which is as follows:
* when I am trying to connect to ARM +without+ stopping the uboot (from booting linux), I receive this error
03/11/2014
- RK 05:13 PM Software Development: RE: DSP- EDMA Transmission problem
- Hello Mike,
Thank you very much for your response.
I have a question before I transfer to other place than L2 Cache. I found in the forum the information about the usage of memory:
https://support.criticallink.com/redmine/projects/...
03/10/2014
- MW 07:25 AM Software Development: RE: DSP- EDMA Transmission problem
- Do you see this affect if you transfer to a different place in DDR (instead of the L2 SRAM)?
Are you still enabling the DSP L2 Cache? You can't enable L2 Cache and also try to use it directly as shared RAM unless you reduce the cac... - RK 07:19 AM Software Development: RE: DSP- EDMA Transmission problem
- Hello Michael,
It looks like edma is causing that. When I turned the edma off and used the data without transferring it to L2_Cache. That is, I am attempting to transfer the data block from 0x66000880 to L2_Cache in 0x11820000 for perfo...
03/09/2014
- MW 03:44 PM Software Development: RE: DSP- EDMA Transmission problem
- It sort of sounds like there is a memory leak somewhere. Are you thinking it's in the DspQDMA routines?
-Mike - RK 03:29 PM Software Development: RE: DSP- EDMA Transmission problem
- Hello again,
There is another symptom in my application that occurs. I am viewing the size of heap in the MEM in the RTOS object view (ROV).The size of free memory in heap is drastically low just after the EDMA transfer is finished (and...
03/07/2014
- JP 09:13 AM Software Development: RE: "Breaking into" uboot
- Hello,
Thank you very much for your replies. I tried a different cable and it worked.
I attempted to update Linux filesystem by sshing in, changing the opkg feeds to an up to date repository and running opkg update. I see now that t... - BD 09:11 AM Software Development: RE: "Breaking into" uboot
- Hello Jordi,
Can you confirm that the serial cable provided with the dev kit has the words "Null Modem" printed on each connector?
-Bob
- JC 08:14 AM Software Development: RE: "Breaking into" uboot
- Also to ask the simple questions, have you tried with and without the null modem? I've run into serial cables that already did the null modem part so the adapter was not necessary.
- JC 08:13 AM Software Development: RE: "Breaking into" uboot
- JC 08:07 AM Software Development: RE: "Breaking into" uboot
- You should see printout similar to this:
- Hello, I have a MityDSP L138 and I am trying to gain access to u-boot. I have a NULL modem serial cable which was supplied with the MityDSP kit connected to my pc. The other end is connected to the adapter which was also supplied with th...
03/04/2014
- MF 09:11 AM Software Development: RE: How to add ifplugd to Busybox
-
> When you remove and reconnect the ethernet cable do you get any messages printed on the console?
> ...
No messages appear on the console.
> What version of the kernel are you running (custom or from which Critical Link MDK)?...
03/03/2014
- BD 01:05 PM Software Development: RE: How to add ifplugd to Busybox
- Mary,
Based upon a quick review, your method looks OK.
When you remove and reconnect the ethernet cable do you get any messages printed on the console?
What version of the kernel are you running (custom or from which Critical Li... - MF 09:46 AM Software Development: RE: How to add ifplugd to Busybox
- Sorry,... I hit enter before I was done above. Attached are the other script files
To build busybox, I first ran make with nothing enabled (step 2a above), then with menu_config.
I tried starting the ifplugd deamon from the comman... - MF 09:29 AM Software Development: RE: How to add ifplugd to Busybox
- I have done the following:
- ES 09:28 AM Software Development: RE: I2C Bus
- Thank you for your comments.
The glitches you can see on the waveforms occur when there is an acknowledge bit. The master stops driving and the slave starts. If they occurred on the clock line or during the high period of the clock I ...