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OpenEmbedded/Angstrom on 9G20?
I'm able to build OE (Angstrom 2008.1) for the 9260 and using the cross too= l chain from that, I've built a 2.6.27 kernel (kernel.org + patches...
I'm able to build OE (Angstrom 2008.1) for the 9260 and using the cross too= l chain from that, I've built a 2.6.27 kernel (kernel.org + patches from li= nux4sam) for the 9G20. My presumption is that the OE rootfs should work on = the 9G20, but perhaps I'm missing something. The kernel boots fine, as expected, but startup fails as follows: VFS: Mounted root (jffs2 filesystem). Freeing in...
Reset Behavior
inI'm trying to figure out the reset behavior of my AT91SAM7XC256 : One of the features of our product is that the firmware can be upgraded. ...
I'm trying to figure out the reset behavior of my AT91SAM7XC256 : One of the features of our product is that the firmware can be upgraded. We have a firmware programmer routine that runs out of RAM and programs the flash from data received over a comms link. It all works fine if we cycle power at the end. But, if we try to reset the device programmatically, via: AT91C_BASE_RS...
AT91SAM SSC Transmit and Receive
i am newbie and trying to transfer some data between SSC0 and SSC1 of SAM9263 processor .SSC0 TX is connected with SSC1 RX by an Hardware bridge...
i am newbie and trying to transfer some data between SSC0 and SSC1 of SAM9263 processor .SSC0 TX is connected with SSC1 RX by an Hardware bridge between them.when i try to send the data without PDC i am able to receive all the words except the first which is default value and when using PDC i don\'t see any data transmitting on TX pin.can anyone help me with this problem. ############when using...
Using ioperm() example?
inHey, I'm trying to move some simple code into Linux, and I'm trying to figure out the easiest way to use ioperm() in a process running as root...
Hey, I'm trying to move some simple code into Linux, and I'm trying to figure out the easiest way to use ioperm() in a process running as root to write to and read from some port A pins. So I want to basically do something like: AT91C_BASE_PIOA-> PIO_SODR = 1 < < 24; Where AT91C_BASE_PIOA is, I believe, defined in AT91SAM9261.h. If I'm reading this right, I do ioperm(AT91C_BASE
Lots of AT91SAM9261-EKs with bad NAND flash?
inI've got a script to load my Linux compilation on to an AT91SAM9261-EK. It works just fine on several different devices. We've also had a few...
I've got a script to load my Linux compilation on to an AT91SAM9261-EK. It works just fine on several different devices. We've also had a few where, despite the script running just fine, no errors from SAM-BA, Linux won't load the JFFS2 root filesystem. We don't have a sample size large enough to be statistically significant, but that we've run into this with several devices bothers us a...
uIP throughput and number of sockets
inHello, I am researching using the uIP Stack. I realize that there is a limit to the throughput because only 1 un-NAK'd packet is allowed to...
Hello, I am researching using the uIP Stack. I realize that there is a limit to the throughput because only 1 un-NAK'd packet is allowed to exist. But I can't figure out if this is for a single open socket or for all packets. to clarify: if I have 32 open sockets (Ports 1000..1031) can I send data on each one after the other before I receive the ACK from the first sent packet? Or wo...
Put jffs2 file system on AT91SAM9263EK
inHi all, I am using a AT91SAM9263-EK and want to run Linux on it. I have already downloaded Linux-2.6.27 kernel and built it for ARM. Steps I...
Hi all, I am using a AT91SAM9263-EK and want to run Linux on it. I have already downloaded Linux-2.6.27 kernel and built it for ARM. Steps I used: 1. make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- 2. mkimage -A arm -O linux -C none -T kernel -a 20008000 -e 20008000 -n linux-2.6 -d arch/arm/boot/zImage uImage That gives me uImage. 3. On the AT91SAM9263-EK, I have downloaded Bo...
Writing to SDRAM location in AT91SAM9RL64-EK problem
inMy program is 1.4MB and I am loading into SDRAM. I use the init_sdram.gdb file to initialize the SDRAM before loading the program. In...
My program is 1.4MB and I am loading into SDRAM. I use the init_sdram.gdb file to initialize the SDRAM before loading the program. In Jlink-gdb server I checked the verify download box to verify. It fails after going back to normal mode in init_sdram but the program is loaded succesfully. Can anyone please let me know what needs to be modified in my init_sdram.gdb file to verify pass? B...
read flash with crossworks
Hi! Can someone help me how to read the content of the flash of a uC (SAM7X) back to a hex file with Crossworks? Thanks a lot. best...
Hi! Can someone help me how to read the content of the flash of a uC (SAM7X) back to a hex file with Crossworks? Thanks a lot. best regards, David ------------------------------------
JFFS2 prblm on AT91SAM9260EK with STMICRO NAND FLASH
inHi all, i am working on customized ATMEL at91sam9260 board with ST MICRO NAND FLASH NAND01GW3B2C(128MiB,3,8-bit,) page size :(2048 + 64...
Hi all, i am working on customized ATMEL at91sam9260 board with ST MICRO NAND FLASH NAND01GW3B2C(128MiB,3,8-bit,) page size :(2048 + 64 spare) bytes, block size (128 k + 4k spare) bytes, i am unable to mount jffs2 filesystem on nand flash , but im able to mount on samsung nand from AT91SAM9260EK BOARD, While mounting i am getting some ECC errors and mtd-> read errors. so plz sugge
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