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

10/09/2017

TR 05:54 PM PCB Development: RE: MityDSP-L138F SPI Signal Access

Thanks Jonathan... That's great, somehow overlooked those SPI1 signals on J700 since the connector assignment listed them as RESERVED.
First I'd like to make sure I haven't overlooked anything interface wise. We need these functions ... Tom Riddle

JC 03:35 PM PCB Development: RE: MityDSP-L138F SPI Signal Access

Tom Riddle wrote:
> Hi,
> ...
Yes this should work.
Note that according to the industrial io schematic, the CAN_SOMI/MOSI/CLK pins (SPI1) also go to connector J700 as well as the unused SPI1_SCS0 which would be chip select 0 for SP... Jonathan Cormier

JC 02:14 PM Software Development: RE: Setting the ARM as a USB bulk device

Okan, Linux calls this a USB gadget. Depending on what peripheral you want to emulate you can enable different "gadgets". We have a wiki page walking through how to use a USB RNDIS (networking) gadget. https://support.criticallink.com... Jonathan Cormier

OÇ 11:29 AM Software Development: Setting the ARM as a USB bulk device

Hi,
I'm using a MityDsp-L138F SoM, with Linux installed. I need to make the ARM side communicate with a PC over USB such that the latter will see it as a USB bulk peripheral device.
I examined the StarterWare examples, which includ... Okan Çalış

10/08/2017

AH 11:07 AM Software Development: Blackhawk XDS560v2-USB Debugger gel file

Hello everyone,
We are using the debugger Blackhawk XDS560v2-USB and try to test it to debug the Helloworld program provided here.
Previoously we have run the program directly under linux and in works fine.
However, now I am getti... Andri Haryono

10/06/2017

TR 08:48 PM PCB Development: MityDSP-L138F SPI Signal Access

Hi,
I'm trying to figure out how best to gain access to one of the two SPI ports on the L138. I have an Industrial I/O board with an L138F module and we want to interface it with some external eval board hardware that has SPI slave c... Tom Riddle

09/29/2017

TR 07:09 PM FPGA Development: RE: Example fpga bin file

Never mind... I was able to successfully use the bin file out of build_dvi_revc_lx45 to validate with the Impact tool. Thanks Tom Riddle

09/28/2017

TR 05:24 PM FPGA Development: Example fpga bin file

Hi,
I'm using MDK_2014-01-03 and wanted to just validate the FPGA programming mechanisms outlined in the wiki. Is there a generic .bin file available to test with or do I have to build one from the examples? Thanks, Tom Tom Riddle

OÇ 08:19 AM Software Development: RE: Inter-Processor Communication between ARM & DSP

Thanks. Okan Çalış

09/27/2017

TR 07:29 PM Software Development: RE: MDK version?

Bob... sounds good thanks, Tom Tom Riddle

BD 07:21 PM Software Development: RE: MDK version?

Tom,
For following the Wiki, the "Release 2014.01" MDK is the best choice right now. The Wiki documentation has not been updated to match the newest MDK releases (e.g. Release 2017.08 - BETA).
After you work through some examples... Bob Duke

TR 07:03 PM Software Development: MDK version?

Hi,
Just getting started here with a MityDSP L138F dev system. The USB stick had release 2011-03-31. Which is the best MDK release to use that the examples listed on the wiki coincide with? It appears Alpha release 2016.01 is more too... Tom Riddle

09/26/2017

TR 08:15 PM FPGA Development: RE: L138F breakout adapter pinout

Alex, thanks... Regs, Tom Tom Riddle

AB 07:22 PM FPGA Development: RE: L138F breakout adapter pinout

Tom,
You can find the pin-out of the JTAG adapter board in the datasheet for the board (http://www.criticallink.com/wp-content/uploads/80-000286_L138_Debug_Adapter.pdf).
Please let us know if you need anything else,
Alex Alexander Block

TR 03:13 PM FPGA Development: L138F breakout adapter pinout

Hi,
Can someone point me to the docs that outline the pin assignments for the 2 user connectors on the emulator adapter board -- Critical Link (CL) part number 80-000286.
Thanks, Tom Tom Riddle

09/22/2017

GG 10:04 PM Software Development: RE: Inter-Processor Communication between ARM & DSP

Hi Okan,
* Q: void* DspAddr: What is the physical address of DSP that I should be reading from ARM?
* A: This depends on how you structure your application. One example would be having the DSP allocate a chunk of heap data and filli... Gregory Gluszek

OÇ 07:06 AM Software Development: RE: Inter-Processor Communication between ARM & DSP

Hi Greg,
Thanks for your reply.
I examined @dspapp.cpp@ in the MDK, and noticed @ReadMemory()@ is a simplified version of the @PROC_read()@ function of DspLink. About the function arguments:
*@void* DspAddr@:* What is the physical... Okan Çalış

09/21/2017

GG 03:05 PM Software Development: RE: Inter-Processor Communication between ARM & DSP

Hi Okan,
Regarding your need for the ARM to read memory written by the DSP there is a function call ReadMemory() in the ARM tcDspApp class. If you setup a structure where the DSP uses DspLink to communicate an address the ARM is to r... Gregory Gluszek

OÇ 06:21 AM Software Development: RE: Inter-Processor Communication between ARM & DSP

Hello again,
I consulted to my colleague. It turns out, we don't insist on using SysLink instead of DspLink. But we definitely need a shared memory mechanism where the DSP writes some data to the memory, send an interrupt to the ARM, an... Okan Çalış

OÇ 05:43 AM Software Development: RE: Inter-Processor Communication between ARM & DSP

Hi Greg,
The communication method Critical Link provides is great; the code was easy to follow and I understood most of it.
The problem is that it supports only message buffers, but we may need to use "shared memory" communications... Okan Çalış

09/20/2017

GG 02:39 PM Software Development: RE: Inter-Processor Communication between ARM & DSP

Hi Okan,
As a qualification I want to mention that DspLink is the communications and control method Critical Link supports and recommends using at this point. Our MDK provides wrappers around DspLink for loading the DSP via the ARM a... Gregory Gluszek

OÇ 05:39 AM Software Development: RE: Inter-Processor Communication between ARM & DSP

Hi Greg,
Thanks for your response. My first question was really confusing me, so thanks for the explanation.
Considering neither Critical Link nor TI technically supports DspLink anymore (you provide your own functions instead, and the... Okan Çalış

09/19/2017

GG 03:10 PM Software Development: RE: Inter-Processor Communication between ARM & DSP

Hi Okan,
Here is some feedback regarding your questions:
# DSP/BIOS is the RTOS that runs on the DSP. However, unlike an OS like Linux, which needs to be installed, DSP/BIOS does not. I believe it is simply compiled into the .out ... Gregory Gluszek

OÇ 05:48 AM Software Development: Inter-Processor Communication between ARM & DSP

Hi,
I've been working on a MityDsp L138F board with Linux Ångström run by the ARM core. I'm expected to learn and implement various possible IPC methods to make the cores communicate with each other.
* I've successfully implemented t... Okan Çalış

09/11/2017

JC 01:24 PM Software Development: RE: Touchscreen is not detected

Jonathan Cormier wrote:
> Hmm we've used several different cap touchscreens over the years though I'm only aware of ones we've used on the 335x. However they've all been i2c based so the L138 should be a problem.
*shouldn't be a pro... Jonathan Cormier

JC 01:23 PM Software Development: RE: Touchscreen is not detected

Andri Haryono wrote:
> Thanks Jonathan for your reply,
> ...
Hmm we've used several different cap touchscreens over the years though I'm only aware of ones we've used on the 335x. However they've all been i2c based so the L138 should ... Jonathan Cormier

09/10/2017

AH 06:06 AM Software Development: RE: Touchscreen is not detected

Thanks Jonathan for your reply,
I have follow you guidance. it improve the LCD touchsceen response. However, it's still hard to be used.
Do you have recommendation on capacitive touchscreen that supported by Critical link?
regards, Andri Haryono