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Forum Post: Kernel boot customization

SJackson

My custom hardware has the option for me to enable or disable serial output to help save power if no debugging output messages are needed. I have successfully modified U-Boot code to toggle the appropriate GPIO line high and enable serial output. The kernel seems to assume that GPIOs haven't been...

on Jul 31, 2008
Forum Post: Re: A question when Booting via TFTP

LorryAstra

I upgrade my router , unfortunately it don't change either. In static ip type, I still connect with router, but boot is successful, so I think DHCP function of my router is the main factor for the failed boot. //----------------DHCP command in dynamic IP --------------------- In dynamic ip type,...

on Aug 13, 2008
Forum Post: Re: DM6467 arm968 boot

Juan Gonzales

I am not sure I understand the question. Codec Engine framework is software layer that runs on both ARM (at user level) and DSP. In ARM side, the kernel has to load before any user level application; booting ARM requires boot-loader (e.g. u-boot) and Linux Kernel (uImage), both which are provided with...

on Aug 26, 2008
Forum Post: Re: DM6467 arm968 boot

Daniel Allred

The arm968 cores in the DM6467 are part of the accelerator blocks that are used by the codecs. In general, these aren't parts of the system that you would want to load with your own code, particularly if you are planning on using the codec engine framework. Codecs that make use of the accelerators...

on Aug 26, 2008
Forum Post: Re: Problem with Booting from Flash on DM648

Bernie Thompson TI

The NOR boot mode should be usable with your clock, it will just mean that some of the timings will be faster, this really is only a major limitation to the UART boot mode which would not sync properly with a offset clock frequency As to the actual problem at hand, when you go to debug the boot process...

on Sep 14, 2008
Forum Post: Re: Reloading linux on DM355 EVM (via RS232 UART)

Bernie Thompson TI

I cannot find where it is said that GIO000 is used for fast boot selection, perhaps this was in one of the earlier revision datasheets. Fast boot is not supported on DM355, therefore if you were getting into the fast boot mode it could explain problems booting. The latest EVM schematics available at...

on Sep 23, 2008
Forum Post: Re: Low cost download cable

Raffaele Tegas

Hi Fill, you can use hex2000 that is described in the Assembly language tool reference. By the way, an example should be "hex2000 -i yourprog.out -romwidth 16" that returns you yourprog.i00 that is an hex file. You can rename it or leave it unchanged in order to load into C2000prog. Obviously...

on Sep 29, 2008
Forum Post: Re: c6727 SPI slave boot mode problem

TimHarron

Hello, There are several Advisories in the C6727B Silicon Errata related to the SPI (slave) peripheral - have you checked into these? Harbour 2. Is there any 16 bit SPI slave boot mode examples available from TI ? Pdf mentioned has only 32 bit flash examples. I believe there are only 32-bit examples...

on Oct 6, 2008
Forum Post: Re: AIS booting on DM648 for flash(LH28F160BJE-TTL90)

Brad Griffis

Your description sounds as if the reset you perform through CCS is fixing your issue. This might indicate a problem with your power-up sequence or your reset. You should double-check your power ramp-up and make sure that reset is being held for a sufficiently long period of time. Do you have a reset...

on Nov 6, 2008
Forum Post: Re: Debug boot firmware

Bernie Thompson TI

Unfortunately the source code to the ROM boot loader is not available (this applies to most other OMAP/Davinci/C6x devices as well). In the case of the OMAP3 the primary source for information on the ROM boot loader is SPRUFD6 , which does not go to the level of entry/exit points but does detail how...

on Nov 12, 2008
Forum Post: Re: SPI slave boot problems

KarlLunt

Spot on, Adriaan! The SET command does, indeed, require transfer of the four words to the DSP in an order that differs from the order in which they are written to the AIS file. Note that the sample implementation (em_protocol.c) in TI's BootUtils folder does NOT alter the order of the words when...

on Nov 26, 2008
Forum Post: Booting and Flashing DM355 from SD Card/MMC

Constantine

I developing boot and flashing DM355 from SD Card. It will be much faster than flashing via serial cable. Questions: Who already tried to do this? Can you give an advice or source code? Who is intersted in the project? Who you like to be a beta tester?

on Dec 1, 2008
Forum Post: F28335 I2C Boot Example

Tim Love

Team, A customer of mine is looking for a ready made example that can boot from the I2C of the F28335 eZdsp. Before developing an example I was curious if anyone has an example readily available. Does anyone have one they could share? Regards, Tim Love

on Dec 2, 2008
Forum Post: Re: Does lib file can be converted to ais file

Geetha

Hi TimHarron, Thanks a lot for your quick response. Step 1: Burn UBl and Application on First Flash 8MB Step 2:Application burn at Step 1 wants to use dictionaries which are regularly changed. Here I would like to tell about Dictionaries. Dictinaries are nothing but creating a variable array...

on Dec 8, 2008
Forum Post: Re: Omap-l137 cannot boot by nfs filesys

BrandonAzbell

YongchaoDeng U-Boot > printenv bootcmd= bootdelay=3 baudrate=115200 ethaddr=00:0e:99:02:f3:c2 nfshost=192.168.0.77 bootargs=console=ttyS2,115200n8 noinitrd rw ip=dhcp root=/dev/nfs nfsroot=$(nfshost):$(rootpath),nolock mem=32M stdin=serial stdout=serial stderr=serial ver=U-Boot 1.3.3 (Nov 14 2008...

on Jan 3, 2009
Forum Post: How to get the correct AIS bin file for SPI flash boot on dm6431?

Eric Fang

Dear Sir, I have problem with SPI flash booting on 6431. Please refer to the attached .cfg file. I convert a .out file to .bin. with the .cfg file. Is there anything wrong with my config file? I am very sure that the flash writing process is correct. Therefore, I think there is something...

on Feb 20, 2009
Forum Post: Re: How to get the correct AIS bin file for SPI flash boot on dm6431?

Eric Fang

Dear Matt, I am sure that there is SPI activity. I do set the bootmode. In order to debug, I boot with 24-bit SPI boot, then connect 6431 DSP with emulator. The code in my SPI flash will dump some logs in DDR2 memory. I am still studying these logs. Current status is that when I burn a smaller...

on Feb 24, 2009
Forum Post: Re: How to get the correct AIS bin file for SPI flash boot on dm6431?

Eric Fang

Dear Tim, I can boot from SPI now. The problem is that I didn't set the PSC well. Gel file turn on all the power, but I didn't do that in my project. Really appreciate your help!! But I have another problem now, the UART interface is dead with SPI boot. UART can work when I load symbol...

on Feb 25, 2009
Forum Post: Re: Why UART is not working when booting from SPI flash with 6431?

Eric Fang

Dear Matt, I study the UART code under the directory you refer, and I copy one of the uart API to my project in main( ), and it works!! Really appreciate your help!! Please refer to the following for the code I add: void DM6431_UART_open( Uint32 baudrate ) { UART_Handle uart_handle; Uint32...

on Mar 3, 2009
Forum Post: Re: Initializing the hardware in asm boot code of boot project

TimHarron

Why not change the AIS Image around a bit? AIS is cool in that you can embed op codes to write to registers (e.g. SET op code). The secondary boot code is certainly not a bad idea as you can create a simple watchdog 'pet' routine, but the AIS Image could be tweaked to work as well.

on May 7, 2009
Forum Post: fast SRAM, OMAP-L137

Flamingo

One of my hardware engineers asks: "We are having variable success getting SRAM. The 166MHz ISSI part seems to be unobtainable right now. There is a 140MHZ ISSI part with some lead time. There is a 133MHZ Micron part that is available. I know if I plug into my PC any speed of RAM the bios...

on May 12, 2009
Forum Post: Re: NFS error while booting

R Tovo

I had the same problem as LorryAstra described. All configs, parameters were right and NFS didn't work. Searching on linux forums, I found that I needed to add a 'tcp' option to the nfsroot parameter in the bootargs envar, so it forced to use TCP, not try UDP: setenv bootargs console...

on May 20, 2009
Forum Post: Re: NFS error while booting

R Tovo

Hello LorryAstra I use Fedora Core 10, fresh install (no updates). Did you try disabling the firewall on the host?

on May 25, 2009
Forum Post: Re: OMAPL137 SecureDigital versus NAND/NOR Flash?

Joe Coombs

Chikku, When booting from a 16-bit NOR device, you don't need to worry about special EMIFA connections for the initial 8-bit read. Just connect the NOR device to EMIFA (chip select 2) in the standard 16-bit way. The initial read will only look at the lower 8 bits of the first NOR word, but that...

on May 28, 2009
Forum Post: Hex6x NOR Flash Boot 6678

Daniel S

Hello. I am new to using the hex6x generation tool and boot code in general. Can anyone help me with the param settings? I want to boot the C6678 from EMIF NOR Flash (0x7000_0000). The flash is in 16 bit mode. The code is compiled/linked to run in L2SRAM (0x0080_0000) and runs well when loaded with emulator...

on Sep 8, 2012