Activity
From 09/25/2012 to 10/24/2012
10/24/2012
- TI 11:17 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Starter Guide: Cannot build application with eclipse
- Conor
Thanks for jumping in! Critical Link appreciates users on the forum sharing their knowledge... its what makes the forums work at peak efficiency!
Mads-l
If you still have any issues, please let us know.
cheers
/Tim - CO 10:54 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Starter Guide: Cannot build application with eclipse
- Sorry for the drive by answer - hope Critical Link don't mind (I'm not an employee).
There are a few missing bits which other documents fill in. Plus the toolchain changed.
From the command line, you need to set up the environment ... - Hi,
Having unpacked the AM-1808 eval kit, and installed the virtual ubuntu mchine in virtualbox, I experience problems when trying to follow the starter guide for a quick intro.
* First, testing the toolchain failed. Although I fou...
10/23/2012
- MW 05:26 PM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Is VIO_3P3 NC?
- VIO_3P3 is switched on by the SOM after the core voltages to the AM335X are enabled. VIO_3P3 should also be used for the "high" levels on the bootstrap mode pins (LCD_DATA pins).
It is generated using a TPS62290 that is sourcing the ... - Is VIO_3P3 (pins 21, 23, 25 & 27) NC on the MityARM 3359? Looks like all 4 are tied together but are no-connect. Is there really 3.3V power available from these? I have them wired to VDDSHV2 & VDDSHV4 as suggested in the Design Guide ...
- Hello, We have an application where we are storing data to a SATA drive from our L138. We are in an environment with some vibration and sometimes a bit of a mechanical shock and I am worried about the lack of a latch on the SATA connect...
- SW 04:36 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: uPP and Boot signal muxing (Posted on behalf of a Customer)
- Angela,
I am using uPP to the arm. What I did was map the pin mux registers in a linux module driver and after bootup load the module which muxed the uPP. I have no idea why you wouldn't be able to mux the pins correctly in the kernel...
10/22/2012
- JP 05:40 PM ARM9 Based QNX Platforms Software Development: RE: Linux ethernet usb support
- This should probably be entered in the "Arm9 Based Platforms" forum instead of the "Arm9 Based QNX Platforms" since you are interested in Linux and not QNX.
- I am attemting to generate usb gadgets for Ethernet over USB.
Followed the instructions in the attached document.
There are no options for USB Gadget Support. There are needed as per document
LinuxDavinci version is fce1b66.
Using Mi... -
04:19 PM
MitySOM-335x (ARM Cortex-A8 Based Products)
Software Development: RE: DMTimer running slowly for StarterWare
- Mike,
I have compared the BeagleBoard boot settings compared to where u-boot leaves you when the kernel is about to load. I found a difference in the 3359's CM_DIV_M5_DPLL_CORE Register (offset = 84h). The BeagleBone boot shows bit... - KE 12:07 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Flashing NAND from SD Card
- Tim, we are also interested in utilizing the ubifs support on the 335x series and wonder if there has been any progress on CL's part in implementation?
Thanks,
Kjell
10/19/2012
- MW 07:12 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: Boot Pins? (Posted on behalf of a customer.)
- Are you using just the MityDSP-L138, or the MityDSP-L138F.
Both modules currently include pull-up/pull-down resistors (2K, I believe) on the SOM. So the unit should boot OK as long as you leave the boot pins connected to high imped... - MW 07:05 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: FPGA Pinouts ... documentation error??
- Hi,
In the data sheet as well as the design guide, the DDR3 edge connector pin naming scheme did not map the "pair number" of the BX_YY_P.ZZ or BX_YY_N.ZZ name (where X is bank number, YY is essentially an arbitrary pair number, and Z... - (posted for a customer)
I have purchased one of your MityDsp Development kits to use as a reference platform for a base board design. Things are moving along really nice, at least until I started trying to reconcile Xilinx document... - Our site was hit with an email spamming robot this morning and we were unable to kill it immediately.
We have altered some of our security policies in order to reduce (hopefully, eliminate) future attacks.
Please accept our apologi... - MW 07:35 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: uPP support
- Hi Brian,
Sorry about the spam this on this thread morning. We've changed our account activation policy to require manual account approval to avoid this sort of thing in the future.
Please accept our apologies.
-Mike
10/18/2012
- TI 09:51 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Ethernet over usb
- USB gadgets are built as modules.
Here's a link to a TI page on building the usb ethernet gadget module
http://processors.wiki.ti.com/index.php/UsbConfigDevRNDIS
cheers
/Tim - Am using MityDSP L138F board.
Ethernet over USB driver is missing from your distribution.
It is supposed to be included in ubuntu distribution by default.
g_ether.ko is missing.
Would appreciate if you can you send me a new kernel wi... - MW 05:21 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: DVI Output with MityDSP-L138F w/6SLX45 FPGAs
- Wade,
Yes. The LX45 models cannot use the DVI interface as provided on the Industrial I/O boards.
The Industrial I/O board was developed prior to the LX45 SOM offerings came into existence, and because of the bonding issues with t... - Based on the datasheet, models of the MityDSP-L138F SOM that have the 6SLX45 FPGA installed (L138-FI-225-RC, L138-DI-225-RI, and L138-FI-236-RL) have no connects on pins 154, 156, 158, 160, 162, 164, 170, and 172. Since some of these pin...
-
01:01 PM
MitySOM-335x (ARM Cortex-A8 Based Products)
Software Development: RE: DMTimer running slowly for StarterWare
- Hi Mike,
I'm hoping to find the PLL/init code in the Linux kernel. Can I ask you once I have the kernel tree,
is there a way to know which specific files apply to the MityARM? Is there some clue in the makefiles or
makerules t... - MW 12:31 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: DMTimer running slowly for StarterWare
- The source tree for the dev kit is available on a local git tree, see "this page":http://support.criticallink.com/redmine/projects/armc8-platforms/wiki/Linux_Kernel for details. There should be a link to the git server there.
The har... -
10:57 AM
MitySOM-335x (ARM Cortex-A8 Based Products)
Software Development: DMTimer running slowly for StarterWare
- Hi,
We are running the MityArm board under TI's StarterWare (we stop the u-boot process from loading the linux kernel) and are having issues
running the DMTimer code. The timer ISR is firing correctly but it is not frequent enou...
10/16/2012
- CO 08:43 AM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: Top level module question
- That was a fast reply! Thanks Mike.
I'm using the latest MDK alright and I do see that there is generics and code for GEN_DCM_RST and GEN_DNA_PORT. I thought there had been a change of mind about using a DCM generally and you'd decide... - MW 07:37 AM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: Top level module question
- Hi Conor,
First, the most recent MDK should include code in the base module to support the DCM reset logic as well as read out the digital DNA of the Spartan 6 device. Are you using an older version?
Many folks (including Critical... - Hi all,
I'm a bit of newbie with FPGAs but I've written my own top level GPIO test design and it at least synthesises. There are a few warnings though which leads me to a small question on the top level modules. So this is a real newb...
10/12/2012
- MW 11:10 AM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Recommended PHY for RGMII
- Here is our source for the Vitesse part. We are checking on status of the part for obsolescence.
http://wpgnet.wpgam.com:8000/WPGWebsite/inventory.php?tPart=VSC8601&x=0&y=0
-Mike - MK 08:49 AM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Recommended PHY for RGMII
- I understand. Thanks Mike.
I will look into the use of MMC, there appears to be some advantages. On top of all this is we are waiting for a Windows version. Our current product is CE based. I have been in discussion with CL here and ... - MW 08:33 AM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Recommended PHY for RGMII
- We have / are considering I2C0, but it would be a functional change compared to our currently fielded modules as would tie up those addresses on I2C0 which may conflict with customer designs. It would also require a separate set of boot...
- MK 08:10 AM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Recommended PHY for RGMII
- My design will use the MityArm3359 to replace a module recently obsoleted by another manufacturer. I have a limited time frame to prevent production interruption and so would like to minimize impact of hardware redesign and on software c...
10/11/2012
- MW 08:18 PM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Recommended PHY for RGMII
- Hi Mark,
We just kitted a build for DevKits and were able to get the VSC8601 less than a week ago, however I do see that the parts are being discontinued at least on Digikey.
A quick search on Avnet indicates there are some Marvell... - I have recently begun a design-in of the 3359 module to an existing product. I am at a point where I will address the ethernet interface. I see looking thru the forum that there is a limitation when selecting the PHY to be used with this...
- Is it possible to use TI's DSP/BIOS RTDX interface for fast file data collection with MityDSP-XM or will I run into and issue with interrupt vectors?
- MK 11:10 AM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Evaluation kit schematic - as Design reference
- Thanks
- MW 10:30 AM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Evaluation kit schematic - as Design reference
- Did you find the schematics for the DevKit board? They are posted "here":http://support.criticallink.com/redmine/projects/am335x-devkit/wiki/Development_Kit_Revision_Information
-Mike - Hi,
I have just begun implementing the 3359 module into an existing design, to replace another manufactures obsoleted module. I see in another post CL provided the schematic for the eval board. This will be helpful. The carrier design... - Hi all,
I was doing some cross referencing for my own documentation and noticed a few errors in the ucf files. This is in the last MDK so they might have been fixed. I'll also add in my own documentation in case anyone finds it useful...
10/10/2012
- WC 02:26 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Failure to Boot
- Mike,
I isolated the I2C0 bus from the baseboard and I am still having the issue. How should I contact you to forward the schematic?
Thanks,
Wade
- WC 11:35 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Failure to Boot
- Mike,
The SPI1 lines are not attached on the baseboard so that shouldn't be the issue and the reset line is being de-asserted. Hence, that leaves the I2C0 bus, which has a number of devices attached on the baseboard. I will try isolat... - MW 11:23 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Failure to Boot
- Hi Wade,
Would you be willing to send me a schematic (offline, of course) of your baseboard to review?
Your baseboard could be the culprit as you suspect. You should be able to get at least to a u-Boot prompt without much worry as... - I'm trying to get a MityDSP-L138F SOM to boot on a custom baseboard. The SOM powers on; i.e. the Power Good LED lights up, but the boot process goes no further. No data comes out the console UART and the FPGA done LED never lights. I've ...
- CR 01:51 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Project build in CCSv5.1 not successful when using the Platform.tci for creating a DSP/BIOS 5.x Configuration File
- OK, i found the file i need and now it's working.
thanks
Christian - CR 12:41 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Project build in CCSv5.1 not successful when using the Platform.tci for creating a DSP/BIOS 5.x Configuration File
- I forgot to delete the original created *.tcf-file. Now it is almost working - Only one new error appeared:
#5 could not open source file "clkcfg.h" clk.c /hellobios5 line 19 C/C++ Problem
The curious thing for me is, why can the f... - GG 11:36 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Project build in CCSv5.1 not successful when using the Platform.tci for creating a DSP/BIOS 5.x Configuration File
- Hi Christian,
Mike is right, we need more details, but here is my guess at what could perhaps solve your problem (seeing as I've had similar issues in the past):
What is the path you are specifying for "TConf Script Compiler->Gene... - CR 11:35 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Project build in CCSv5.1 not successful when using the Platform.tci for creating a DSP/BIOS 5.x Configuration File
- there are really a lot of errors - more than 100 but i will post here all i got:
Description Resource Path Location Type
./hellobios5cfg.cmd CACHE_L1D memory range has already been hellobios5 line 260 C/C++ Problem
./hellobios5cfg.... - MW 11:28 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Project build in CCSv5.1 not successful when using the Platform.tci for creating a DSP/BIOS 5.x Configuration File
- Can you post the errors?
- Hi,
to getting started with the C674x-Core, CCSv5.1 and DSP/BIOS, I generated a new DSP/BIOS-Project in the CCS. I chose a sample application which is already provided by TI and was selectable in the set up screen for a new project.
... - I am a linux newbie and have gotten as far as "Hello World" and "Hello DSP".
Is there any documentation for the functions that can be called from an application, like a programmer's reference? For this particular distribution? and f...
10/09/2012
- CO 10:15 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: mitydsp L138 starter file
- IE9 has a download manager which might be better than previous attempts (which are terrible 1995-2011). In previous versions of Internet Explorer, a failed download will yield no warnings or errors whatsoever. Which is why I personally u...
10/08/2012
- GG 05:07 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Problem with uPP in DLB
- Hi François,
Sorry about the delay in my reply. And sorry, no, we do not have an generic FPGA loads that have uPP setups to test with at the moment.
\Greg - JP 02:27 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Debugging ARM in Eclipse
- I have added text to the http://support.criticallink.com/redmine/projects/arm9-platforms/wiki/Debugging_ARM_Apps_with_Eclipse wiki page to reflect what the screens look like when using Code Composer 5.0. The original text was for an olde...
- From the wiki page on "Debugging ARM apps with Eclipse":
> On eclipse, you will need to setup a new debug configuration. In the debug configuration dialog you'll need to perform the following steps:
> ...
This is not matching up with... - We are trying to reprogram a Dead L138F board. However, we are observing a problem
after executing "sfh_OMAP-L138.exe -flash -v -p COMx UBL_SPI_MEM.ais u-boot.bin"
as given.
After "Boot completed successfully", we get "Waiting for ...
10/05/2012
- MF 11:20 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: DSP Hello World won't link
- Almost ...
In Eclipse in Properties->C/C++ Build->Settings->Cross Settings I changed Path to "/usr/local/oecore-i686/sysroots/i686-angstromsdk-linux/usr/bin/armv5te-angstrom-linux-gnueabi" as you suggested. Still did not compile.
... - GG 10:56 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: DSP Hello World won't link
- Hi Mary,
In Eclipse in the Properties->C/C++ Build->Settings->Cross Settings try setting Path to "/usr/local/oecore-i686/sysroots/i686-angstromsdk-linux/usr/bin/armv5te-angstrom-linux-gnueabi" (And make sure that Prefix is set to "ar... - DG 10:54 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: DSP Hello World won't link
- Hi Mary,
Your PATH would need /usr/local/oecore-i686/sysroots/i686-angstromsdk-linux/usr/bin/armv5te-angstrom-linux-gnueabi/ prior to running Eclipse for it to locate the compiler. I think you can also edit the C++ environment within ... - MF 10:44 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: DSP Hello World won't link
- Sorry, there was no such entry in ~/.bashrc nor in /etc/bash.bashrc
I think there is something amiss in my Eclipse settings. I noticed that the newer toolchain releases extract to a different directory structure than the older ones. ...
10/04/2012
- GG 03:28 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: DSP Hello World won't link
- Hi Mary,
My guess is that somewhere (most likely your bashrc script) the environment for the old toolchain is being setup and that is why even after running the setup script for the new toolchain you still see gcc as version 4.4.3.
... - MF 11:29 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: DSP Hello World won't link
- I had originally downloaded Aug-2012 SDK (angstrom-eglibc-i686-armv5te-toolchain-qte-v2012.05.tar.bz2)and installed this using the following command:
sudo tar xjvf angstrom-eglibc-i686-armv5te-toolchain-qte-v2012.05.tar.bz2 -C /
th... - MW 09:11 AM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Ethernet Interface to Micrel KSZ9021 PHY.
- Hi Raja,
I don't think we've used this PHY with the MityARM-3359 here, but we have had problems strapping this device on other designs. The AM3359 has several pins pulled down (or up) after a power on reset. You should check Table 2...
10/03/2012
- Hi,
We are using MityARM SOM and MICREL KSZ9021RNI gigabit as PHY on it for Ethernet Interface.
We have configured ETH_RXD0, ETH_RXD1, ETH_RXD2, ETH_RXD3, ETH_RXCTL as pullup high on PHY reset to get mode[3 -0] to 0xF (RGMII Mode – ... - GG 02:46 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: DSP Hello World won't link
- Hi Mary,
In regards to your first issue, the fix you made is correct. The arm_main.cpp file is simply out of date and needs to be updated. I will look into that.
As far as your linking issue, it looks like you are using the toolc... - I am following the instruction for the DSP Hello Word project wiki page.
First Problem:
I got a compile error for this line:
lpMessageOutbound->SendMessage(lpMessageBuffer, strlen(lpMessageBuffer)+1);
saying that there was no... - KV 01:04 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: mitydsp L138 starter file
- Dominic,
Download of the starter file is succussful.Unzip is failing. attached is the screenshot of the message. Winzip works withw the gel file you sent me.
10/02/2012
- DG 10:41 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: mitydsp L138 starter file
- Sorry you seem to be having issues downloading the file. I tried here and was able to download the file and extract it successfully - probably an error occurred during your download. The copy you attached to your post was only 235.1 KB, ...
- Downloaded http://support.criticallink.com/redmine/attachments/1659/CL_MityDSPL138_StarterWare_06_20_12.zip
unable to unzip the file. Winzip complains that it is not a valid archive file.
I am looking for a valid gel or ccxml file fo... - MW 12:57 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: SPI1_SCS0 -> Edgeconnector pin 53?
- Yes,
However, this pin should normally be treated as RESERVED as it is the chip select line for the on-board SPI NOR FLASH. The NOR FLASH is used as the primary first and second stage boot loader media by the OMAP-L138.
This pin w... - Hi,
is the pin 53 on the edgeconnector (L138-Module) connected with the E19-pin (SPI1_SCS[0]) on the OMAP processor?
thanks,
Christian
10/01/2012
- AB 12:22 PM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Caution on MityARM SO-DIMM PCB Footprint
- Mark,
Thank you for pointing out that lack of information. It has now been addressed and the design guide has been updated, October 1, 2012 1.2 version.
Thanks again,
Alex - MW 07:40 AM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Ethernet PHYs
- Hi Mark,
I don't see a way around this at the moment. It does indeed look like you need to use the Gigabit Phy interface with the MityARM-3359 module.
Unfortunately, all of our initial use-cases involved Gigabit Ethernet requireme...
09/30/2012
- MW 05:34 PM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Ethernet PHYs
- Hi Mark,
You are correct about the PR1_MII* signals, according to this E2E post, sorry about that.
http://e2e.ti.com/support/dsp/sitara_arm174_microprocessors/f/791/p/206939/733857.aspx
I am just looping back to this, so I can't...
09/28/2012
-
11:57 AM
MitySOM-335x (ARM Cortex-A8 Based Products)
PCB Development: RE: Ethernet PHYs
- Hi Mike,
The interfaces we definitely need out of the 335x are a 16 bit GPMC (to FPGA), 1 Ethernet (10/100 is fine), 2 USBs, 2 UARTs and 1 SPI. I'd like to keep the 16 bit LCD interface available but could use those pins for other th... - MW 09:35 AM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Ethernet PHYs
- What other peripherals are you trying to accommodate? At a glance it looks like the pin outs should support RMII0 on the LCD_DATAXX pins, but if you need the LCD interface. Can you list what peripherals you need?
-Mike
-
08:49 AM
MitySOM-335x (ARM Cortex-A8 Based Products)
PCB Development: Ethernet PHYs
- Please correct me if I'm wrong, but it appears the pin-muxing configuration for the MityARM-335x SOM is forcing the use of an RGMII type interface for connecting up to Ethernet PHYs. For port 1, most of the interface pins are available ...
-
08:26 AM
MitySOM-335x (ARM Cortex-A8 Based Products)
PCB Development: Caution on MityARM SO-DIMM PCB Footprint
- The PCB footprint found in section 6.5 of the MityARM-335x Carrier Board Design Guide can be misleading if you are not careful. This footprint (which is an exact copy of the footprint found on the JAE MM80-204B1-E1 data sheet) kind of i...
09/27/2012
- AB 04:04 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MMCSD
- Conor,
We have addressed the MMC issues in the datasheet which can be found here by selecting the latest board version: http://support.criticallink.com/redmine/projects/indio/wiki/Industrial_IO_Revision_Information
During the revie... - CO 06:20 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MMCSD
- Thanks Mike. Once I saw it, I realised the reason why - that stubs on the connector line would warrant concern. Plus when you sent me the link to the versioning page on another posting, I noted the red Xs over the MMCSD0 pins but I faile...
- MW 05:36 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MMCSD
- Hi Conor,
You're right. I am trying to figure out what happened here and I see a note in a review that there was concern (not confirmed, mind you) about leaving stubs on the MMC signal path by running the nets to both the SD Card con... - CO 04:24 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MMCSD
- None of the documented MMCSD0 connections on the J700 are wired up. Be nice if that was documented.
- EB 09:47 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: Intermittent boot failure w/ U-boot
- I found the problem.
It was not seating well in the SODIMM socket.
That's a long story, but was my fault.
I am curious though, about which pins would cause that.
Thanks,
Emmett - EB 09:14 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: Intermittent boot failure w/ U-boot
- Here's the SOM sheet, which I believe has everything pertinent to this issue.
U1 is providing a 67ms delay which I'm sure is overkill, but should work OK.
I get the same result w/ power-up or with the reset switch SW1 @ U1.
Also - w...
09/26/2012
- MW 06:18 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: Intermittent boot failure w/ U-boot
- What do you have for a reset circuit? How is the reset input driven?
U-Boot shouldn't hang if there is no RS-232 activity (doesn't look at flow control or anything). I don't think it uses any kind of BAUD detect either.
-Mike - I have the 1808F on our carrier board now.
It is working and communicating RS232.
About 3/4 of power-on events, it locks up.
There is no RS232 comm, and the FPGA never finishes configuration.
The same SOM on the Industrial I/O boar... - CO 12:05 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MMCSD
- Hi Critical Link engineers:
If I probe (carefully) pin 5 of an SD card in place, I see the SDIO Clock. My scope says it's 37.5MHz and 3.5V roughly.
According to the datasheet if I then hook up a probe to J700, pin 23 on the Industr... - MW 10:10 AM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: MityARM standard-keyed vs. reverse-keyed SO-DIMM connector
- We have not tested such a configuration, so I don't really know. If the electrical connections honor the spec, then the only immediate concerns I would have include:
# Clearance. The top side has a couple of components that are tall...
09/25/2012
- CO 11:49 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MMCSD
- Further to this - I have my WL1271 module hooked up to the MityDSP board. However the driver just powers up and down and up and... It successfully toggles GPIO0/5 each time (it's not 7 as documented in MityDSP baseboard docs). I took the...