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Memfault Beyond the Launch

OpenEmbedded/Angstrom on 9G20?

Started by Mike West in AT91SAM ARM15 years ago

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

Started by Nick Howes in AT91SAM ARM15 years ago 26 replies

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. ...

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

Started by raak...@yahoo.com in AT91SAM ARM15 years ago

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?

Started by Dan Lyke in AT91SAM ARM15 years ago 2 replies

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...

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?

Started by Dan Lyke in AT91SAM ARM15 years ago 1 reply

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...

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

Started by mathieuschneider in AT91SAM ARM15 years ago 3 replies

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...

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

Started by swcareers in AT91SAM ARM15 years ago 9 replies

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...

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

Started by sananan82 in AT91SAM ARM15 years ago 4 replies

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...

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

Started by in AT91SAM ARM15 years ago 4 replies

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

Started by pudayana in AT91SAM ARM15 years ago 2 replies

Hi 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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Memfault Beyond the Launch