Activity
From 08/22/2014 to 09/20/2014
09/18/2014
- CB 10:07 AM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: Mity L138F FPGA -> OMAP interrupt lines
- Thanks Mike,
I have found the pin mapping for INT0 and INT1 I couldn't find the mapping for the Non Maskable Interrupt (NMI) pin in the table. I also couldn't find the IOSTANDARD to use the interrupt pins.
Chris B.
- MW 09:48 AM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: Mity L138F FPGA -> OMAP interrupt lines
- Hi Chris,
The information you need is in Table 4 of the "Carrier Board Design Guide":http://www.criticallink.com/wp-content/uploads/2014/01/MityDSP-L138F-Carrier-Board-Design-Guide.pdf.
-Mike
- I was trying to use an FPGA interrrupt which should be serviced by the DSP core in the OMAP.
From the MityL138.ucf I have the following FPGA pins: - CB 09:07 AM MityDSP (TI TMS320C6xxx Based Products) FPGA Development: RE: Mity L138F FPGA -> OMAP interrupt lines
- Sorry about that I thought this was the ARM9 forum, I will repost it there.
Chris B. - MW 08:40 AM MityDSP (TI TMS320C6xxx Based Products) FPGA Development: RE: Mity L138F FPGA -> OMAP interrupt lines
- Hi Chris,
This post, if for an L138 module, should be in this other forum:
https://support.criticallink.com/redmine/projects/arm9-platforms/boards
This forum / subproject is for the MityDSP-6711 and MityDSP-6455 product lines. ... - I was trying to use an FPGA interrrupt which should be serviced by the DSP core in the OMAP.
My FPGA pin map for the interrupt pins is the following:
09/17/2014
- PB 02:36 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: Standard USB peripheral connection on MitySOM eval Board
- Hi,
I'm now quite stuck without the ability to use use the host mode.
I have noticed on Rocketboards something recent that seems related to the issue I'm facing :
http://git.rocketboards.org/?p=linux-socfpga.git;a=commit;h=a3a81b0... - AB 11:29 AM MitySOM-5CSX Altera Cyclone V FPGA Development: RE: Load FPGA Timeout Error
- Max,
Thank you for posting that.
You are correct that if VBAT is too low the module will either not boot at all and/or will not allow the FPGA to be programmed. We believe that on earlier development kits the ESD bags may have cont... - MB 10:41 AM MitySOM-5CSX Altera Cyclone V FPGA Development: RE: Load FPGA Timeout Error
- Hi Dan,
I had similar problem last week. After two week I tried to run my development board loading the FPGA with JTAG and using Uboot.
JTAG was not able to connect and with Uboot the return message was:
altera_load: Failed with e...
09/16/2014
- MF 09:55 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Adding SPI flash
- The part works in SPI mode 0 or 3, but I tried all four modes (0 - 3). I also tried setting the fields .c2tdelay and .t2cdelay to 0.
As I mentioned, the data appearing on the bus (SOMI), driven by the M25PE80 is correct (as seen with... - MW 09:45 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Adding SPI flash
- Is the SPI mode field correct (polarity and phase, CPOL and CPHA is the part in SPI_MODE_0)?
You also look like you are setting the delay fields (c2tdelay and t2cdelay), required?
- MF 09:06 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Adding SPI flash
- I confirmed with a scope that the chip select was not active.
I added DA850_GPIO2_15 to the the array of gpios in my baseboard file.
I also changed the .type entry in the flash_platform_data structure to "m25pe80".
In this case,... - JC 08:49 AM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Pin mapping option for Carrier board design
- This depends on at which stage you want access to the pins. Both u-boot and the kernel make changes to the pin mux. If the device needs to be accessed while you in the u-boot bootloader then u-boot should set the pinmux. If not then t...
09/15/2014
- ZJ 04:29 PM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Pin mapping option for Carrier board design
- I see. Thank you.
And how am I be able to change them?
Zhe
09/12/2014
- MW 09:19 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Adding SPI flash
- It would not apply (different driver, different logic handling platform arguments).
- JC 09:17 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Adding SPI flash
- Note that if you want to use the hardware designated chip select for that spibus instead of a gpio then the SPI_INTERN_CS variable is used. Unsure if this applies to a fpga spibus though.
09/11/2014
- MW 06:34 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: U-Boot with large uImage containing initramfs
- Hi Nicholas,
A little confused. Your build_ramdisk_image.sh appears to be building a 1 GB image for loading an SD card, which contains including multiple partitions, etc.
You want to create a raw ext2 or ext3 image only, not a ful... - MW 06:18 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Adding SPI flash
- Hi Mary,
Have you configured the pin-mux for the DA850_GPIO2_15, which would correspond to the chip select you are selecting for your part?
The way you have configured it is you are having the SPI controller drive that chip select ... - We have a SPI serial flash device on our board, an M25PE80. It is connected to SPI1 with SPI1_CS1.
I created a baseboard file based on baseboard-industrialio.c and using what was done for the SPI flash in board-mityopmanl138 as a gui...
09/10/2014
- NC 04:03 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: U-Boot with large uImage containing initramfs
- Michael Williamson wrote:
> We've run into this issue before on a different ARM based processor.
> ...
Mike,
I still have had no luck with the initramfs, Just can't get it to go past that Starting Kernel message. I've tried several ... - DB 01:46 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: DSP HelloWorld Message Queue Buffer Length
- Thanks for the clarification on the message handler code, and the message structure recommendation.
It definitely will help me in crafting the ARM/DSP comms.
Regards,
Doug - JC 11:01 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: DSP HelloWorld Message Queue Buffer Length
- Doug,
As far as I understand the anLength is really the length of the buffer passed between the DSP and ARM and is likely going to be bigger than your actual message. I agree that the description of the parameter is misleading.
Wh... - I'm modifying the DSP HelloWorld example code from the Wiki site to transfer data types other than strings (see SW Forum message "Data Transfer over DSPLink").
While debugging the transfer of an array of ints, I noticed that in the AR... - JC 08:41 AM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: Pin mapping option for Carrier board design
- Have you looked at this wiki page?
[[Pin Out]]
09/09/2014
- Hi,
I am now designing a carrier board for MitySOM335.
In the design guide, it mentions:
The I2C1 and I2C2 interface signals/mux options cannot be changed as they are used for dedicated functions on the MityARM-335x module.
Is ...
09/03/2014
- I am having problems DE-allocating DMA memory space. Allocation works correctly with dma_alloc_coherent. I get the following
out of dmesg:
[ 4.345091] Virt Address : c095c000 Phys Address: 4095c000 Handle: 3e8c0000
This is after...
09/02/2014
- JC 08:33 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: How to probe the fpga_ctrl & fpga_gpio.ko module
- Have you made any progress with this problem?
08/29/2014
- JL 12:23 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: Compiling Memory Size into U-boot
- I think I see my error.
The ubootenv.bin file doesn't go into any of the three partitions generated by that automated script.
If you wish to just update the ubootenv.bin file this is the command you need:
dd if=ubootenv.bin of=/d... - JL 10:09 AM MitySOM-5CSX Altera Cyclone V Software Development: RE: Compiling Memory Size into U-boot
- From that script to combine the uBoot image with the rootFS as well as the uBoot blob, I gleaned that
to write the uBoot blob only is to do execute this command:
dd if=ubootenv.bin of=/dev/sdb2 bs-512 seek=1
However when I inser...
08/28/2014
- DV 05:20 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: Compiling Memory Size into U-boot
- We actually create the environment using *mkenvimage*, which takes a text file and then store this on the SD card, which uboot reads on startup. Here is the instructions on how to do that: https://support.criticallink.com/redmine/project...
- I read this link:
https://support.criticallink.com/redmine/projects/mityarm-5cs/wiki/ARM_Software_FAQs
And I know how to manually set the memory size for my system during the uBoot process. However,
I would like to set the memory ... - NC 04:20 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: U-Boot with large uImage containing initramfs
- I have attempted the following:
1.) Create .tar.gz rootfs with yocto
2.) Create ext3 ramdisk image of rootfs
3.) Create uboot image with mkimage
Now my uImage is ~3.3MB and my ramdisk is ~45MB. When I try to boot with the followi... - NC 12:42 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: U-Boot with large uImage containing initramfs
- Michael Williamson wrote:
> We've run into this issue before on a different ARM based processor.
> ...
Mike,
Thank you for the fast reply. I have tried your first suggestion. As it seems your vmlinux.lds.S file is different than min... - MW 07:55 AM MitySOM-5CSX Altera Cyclone V Software Development: RE: U-Boot with large uImage containing initramfs
- We've run into this issue before on a different ARM based processor.
The problem is the linker for the kernel is putting the initramfs into the init section, because it is assuming that the initramfs is going to go away (that you'll p... - JL 12:37 PM MitySOM-5CSX Altera Cyclone V Software Development: RE: Memory Aligned Byte Array
- Mike,
I will definitely need more than a single 4096 byte page. I can
call __get_free_pages() to allocate a continuous chunk of pages
but is there a way of doing so so that the beginning offset is on
a 32K boundary (for example)... - MW 11:42 AM MitySOM-5CSX Altera Cyclone V Software Development: RE: Memory Aligned Byte Array
- Any kernel memory allocation is going to be page aligned (4K), it has to be. That's how the linux kernel memory management / page tables work.
You could have your driver allocate a page (do you need more? you can make continuous ph... - JL 11:19 AM MitySOM-5CSX Altera Cyclone V Software Development: RE: Memory Aligned Byte Array
- Mike,
I'm writing a device driver to handle this DMA setup. I want the kernel to give me a chunk of physical memory aligned so that the least significant T bits (I'm not so sure of the exact size I want)
are zero. The reason for the... - MW 07:09 AM MitySOM-5CSX Altera Cyclone V Software Development: RE: Memory Aligned Byte Array
- Not entirely sure what you are up to here.
Is your linux application running in user space? If it is, you may need to deal with the fact that you are working with virtual memory space that's chunked up into 4K page sizes if you are c...
08/27/2014
- Hi,
I am trying to boot from a uImage containing an initramfs with the mitySOM-5csx devkit. When I use the core-image-minimal-initramfs recipe, I boot up OK for the most part. The boot hangs saying "Waiting for removable media...". If...
08/26/2014
- Posted on behalf of a customer:
I have a byte array in my Linux application into which I want my DMA firmware to write. I need the byte array to be memory aligned
to a certain offset. From what the compiler is telling me, the most I...