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

03/19/2014

07:08 PM Software Development: Error while connecting to ARM9

Hello everyone,
I have a MityARM 1808F and I am facing a strange issue which is as follows:
* when I am trying to c... Ahmed Shaaban

03/11/2014

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 Cac... Rafał Krawczyk

03/10/2014

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 enabl... Michael Williamson

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... Rafał Krawczyk

03/09/2014

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 Michael Williamson

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... Rafał Krawczyk

03/07/2014

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 Linu... Jordi Perez Serra

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... Bob Duke

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 al... Jonathan Cormier

08:13 AM Software Development: RE: "Breaking into" uboot

... Jonathan Cormier

08:07 AM Software Development: RE: "Breaking into" uboot

You should see printout similar to this:... Jonathan Cormier

05:23 AM Software Development: "Breaking into" uboot

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 sup... Jordi Perez Serra

03/04/2014

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 mes... Mary Frantz

03/03/2014

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... Bob Duke

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 ... Mary Frantz

09:29 AM Software Development: RE: How to add ifplugd to Busybox

I have done the following:... Mary Frantz

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... Ed Smith

03/02/2014

03:11 PM Software Development: RE: DSP- EDMA Transmission problem

Hello,
Thank you for response. It is highly possible that the DMA transfer is triggered before the previous has not ... Rafał Krawczyk

02/28/2014

11:01 AM Software Development: RE: How to add ifplugd to Busybox

Mary,
In regards to question (2) either approach should work. If you want to replace busy box you will need to do... Bob Duke

10:43 AM Software Development: How to add ifplugd to Busybox

I want to add ifplugd to Busybox so that the system can detect ethernet cable plug/unplug events and reinitialize the... Mary Frantz

02/27/2014

07:42 AM Software Development: RE: I2C Bus

I don't like the glitches in your "noramal operation" or "early termination" scope plots. Those should not be there.... Michael Williamson

05:21 AM Software Development: RE: I2C Bus

Any comments on the waveforms I posted?
Ed Smith Ed Smith

02/26/2014

09:35 AM Software Development: RE: MityDSP-L138F SoM initial flash configuration

Francois,
Every module is run through our test fixture which programs the bootloader into NOR before running its t... Jonathan Cormier

09:21 AM Software Development: MityDSP-L138F SoM initial flash configuration

Hi,
When a customer order MityDSP-L138F SoM from either your offcial distributors or directly from Critical Link, ... François Tremblay

02/25/2014

07:34 AM Software Development: RE: I2C Bus

Thanks for the swift response. That is exactly the info I've been looking for.
I have attached some waveforms. The... Ed Smith

06:59 AM Software Development: RE: I2C Bus

The PMIC is TPS65023RSBT. The PROM is 24AA02-I/MS. Pins 1, 2, and 3, of the PROM are no-connects.
The I2C0_SCL a... Michael Williamson

06:24 AM Software Development: RE: I2C Bus

I'm working with Bruce on this issue. It would be really helpful to have the part numbers of the other devices, parti... Ed Smith

07:02 AM Software Development: RE: DSP- EDMA Transmission problem

Is the first DMA completing before calling the second?
Michael Williamson

05:04 AM Software Development: RE: DSP- EDMA Transmission problem

Hello again,
It appears that now the different problem occurs. When the DMA transmission is invoked twice or thrice,... Rafał Krawczyk

02/24/2014

07:38 AM Software Development: RE: DSP- EDMA Transmission problem

Excellent! Glad it is now working!
Dave
David Rice

07:15 AM Software Development: RE: DSP- EDMA Transmission problem

Hello David,
Sorry for the latency-I corrected the code due to your suggestions and it worked- thank you.
Best Regards Rafał Krawczyk

02/23/2014

08:08 AM Software Development: EMIF Clock in U-Boot

Hej hej,
I would like to change the EMIF-Clock from 100 MHz to 25 MHz for a MityDSP L138-Module. I searched the u-... Benedikt K.