Embedded Linux on AT91SAM, which config do you use?

Started by Andre Gompel in AT91SAM ARM11 years ago 2 replies

Gentlemen: if you are using embedded Linux, with an AT91SAM7x, then could you share your experience: * Which Linux * Which Tools...

Gentlemen: if you are using embedded Linux, with an AT91SAM7x, then could you share your experience: * Which Linux * Which Tools (Compiler, JTAG interface, debugger...) * Which AT91SAM7S and which config (external DRAM? etc...) * What is the good, the bad etc... Thank you. a.g Andre Gompel a...@yahoo.com _______________________________________________________________...


USB Routines for CrossWorks?

Started by vt_snapshot in AT91SAM ARM13 years ago 1 reply

Hello Everyone, I'm diving into the USB phase of my project and have been looking over all the USB example code for the IAR system (on...

Hello Everyone, I'm diving into the USB phase of my project and have been looking over all the USB example code for the IAR system (on SAM7S64). I use the CrossWorks compiler and wanted to see if anyone else here has already converted those examples to CrossWorks or if someone has their own they wouldn't mind sharing? I don't have the IAR l


Selecting Microcontrollers

Started by ipan_dgl in AT91SAM ARM12 years ago 14 replies

Hi, Selecting the micros, depends on 1. Memory & Peripheral Requirement 2. Cost of the IC 3. Support(Cost of Debugger,...

Hi, Selecting the micros, depends on 1. Memory & Peripheral Requirement 2. Cost of the IC 3. Support(Cost of Debugger, Cost of Compiler & general enquiry/help) from the Microcontroller manufacturers. 4. Type of Application Item one is must for any project. Item two to four, we have to do much analysis, before investing. I heard from discussion ...


AT91SAM7 books

Started by km6vv in AT91SAM ARM12 years ago 6 replies

Hi to the list, I've done a little programming on the Atmel AT91SAM7S-EK demo board using the IAR compiler. I've also been working on a...

Hi to the list, I've done a little programming on the Atmel AT91SAM7S-EK demo board using the IAR compiler. I've also been working on a board design using the chip and both parallel bus peripherals and SPI peripherals that is coming along nicely. I've been looking for a good text on this processor. Has anyone read any of these books, and have a comment? Or another book? http://...


final steps to getting my own boot loader to work

Started by fa50_pilot in AT91SAM ARM11 years ago 2 replies

I've written my own USB bootloader and it is ALMOST working. I'd like to describe my approach and ask for any ideas on what is wrong. First,...

I've written my own USB bootloader and it is ALMOST working. I'd like to describe my approach and ask for any ideas on what is wrong. First, I'm using IAR C-compiler, my own hardware with an AT81SAM7S256 mpu with USB. All bootloader and USB stack code is located at 3B000 (top 16 k of the 256 flash), and will only allow updating of the lower 240k (more than enough for my application). M...


New SAM7X live demo

Started by Richard in AT91SAM ARM13 years ago 2 replies

I have just uploaded the latest FreeRTOS version - V3.2.1. This includes two new demo applications - both targeted at the SAM7X (which ...

I have just uploaded the latest FreeRTOS version - V3.2.1. This includes two new demo applications - both targeted at the SAM7X (which include an integrated MAC peripheral). Both demos implement a simple WEB server within an [open source] fully pre-emptive application. The first uses uIP and the IAR compiler, and the second lwIP with GCC and CrossStudio. See


Help please...

Started by prav...@gmail.com in AT91SAM ARM9 years ago 9 replies

I'm a newbie in the field of embedded systems, For my project, I have to build an Image processing application using Embedded systems.... I have...

I'm a newbie in the field of embedded systems, For my project, I have to build an Image processing application using Embedded systems.... I have with me a at91sam9263 board ... I have also downloaded the yagarto gnu gcc arm cross compiler and the yagarto tools... Is there any way to integrate opencv & yagarto with eclipse....??? And, is there any at91sam9263 simulator....??? ---------------------...


SAM-BA and Mac OS X

Started by Nick Howes in AT91SAM ARM13 years ago

For the hordes of you ;) who are developing on Mac OS X, I hacked together a SAM-BA command-line utility that will download via the USB port. ...

For the hordes of you ;) who are developing on Mac OS X, I hacked together a SAM-BA command-line utility that will download via the USB port. This, along with the GCC cross-compiler means I now have a complete tool chain under Mac OS X. Here's the link: MacSamba . It's freeware and GPL'ed.- Nick


AT91 USART Interrupt Source Code GCC

Started by jannethgil in AT91SAM ARM13 years ago 2 replies

Hi Does anybody has an simple example on using usart interrupts using the GCC compiler for an AT91 ARM7 microcontroller?. I just...

Hi Does anybody has an simple example on using usart interrupts using the GCC compiler for an AT91 ARM7 microcontroller?. I just need to get started. Any links, sugestions or source code will be appreciated Thanks :)


Re: GNUARM use of REMAP macro

Started by Miroslav Kostadinov in AT91SAM ARM11 years ago

--- gigglerdc wrote: > Heres the problem - The GNUARM compiler/tool chain > seems to pickup on > "-DREMAP" option in a very funny...

--- gigglerdc wrote: > Heres the problem - The GNUARM compiler/tool chain > seems to pickup on > "-DREMAP" option in a very funny way. Instread of > simply passing the > REMAP define into the assembler I think you misunderstand the "-D" option. But first of all you more than one way to compile your assembler. 1) The first option is to use AS (arm-elf-as or what


function not returning number(instead returns -9.4...e+022)

Started by gujarati2000 in AT91SAM ARM11 years ago 15 replies

Hi, I am using KEIL compiler for my SAM7SE512. We have quite a bit of code developed for this project & now all of sudden when I implemented...

Hi, I am using KEIL compiler for my SAM7SE512. We have quite a bit of code developed for this project & now all of sudden when I implemented some more functions, one of them is not returning proper value. For Example, I am returning float from a function, when i debug into that function i see the return value fine, but in the calling function it shows up as a huge negative number (-9...


EXTERNAL MEMORY INTERFACING PROGRAMS

Started by soma...@maniindiatech.com in AT91SAM ARM12 years ago

hi all. i have interfacing program for external nand flash memory.i compiled this program by using iar compiler.one...

hi all. i have interfacing program for external nand flash memory.i compiled this program by using iar compiler.one error will occur ie bfsa_nandflash.h couldn't open.i searched this header file in google search is there not found.any body have to solve this problem please reply me asap. regards, s.somasundari


KEIL given sw samples loading

Started by mehmetrizaoz in AT91SAM ARM9 years ago 4 replies

Hi folks, i just has started using xat91sam9263-ek dev. board 1 week ago. i have been using nxp's lpc2468 mcu for 2 years. So i'am new on...

Hi folks, i just has started using xat91sam9263-ek dev. board 1 week ago. i have been using nxp's lpc2468 mcu for 2 years. So i'am new on sam9263. i use Keil compiler and ulink2 debuuger. i cant load the given sample programs (for keil) to mcu on the at91sam9263-ek board using ulink-2 debugger. i compile the file truly but i always have an error message about connection. if you have su...


interrupts before FreeRTOS scheduler start

Started by MichaƂ in AT91SAM ARM10 years ago 6 replies

Hello, I working on project that is based on FreeRTOS for AT91SAM7X256 (Crossworks compiler). I would like to implement following...

Hello, I working on project that is based on FreeRTOS for AT91SAM7X256 (Crossworks compiler). I would like to implement following functionality. Let?s assume that because of some system conditions (e.g. number of watchdog system restarts) I would like to decide if software should start FreeRTOS kernel or not. If not it would start typical while(1) loop and work without FreeRTOS but


Devision Gives Undefined Interrupt

Started by bhav...@yahoo.com in AT91SAM ARM10 years ago

Hello, I m using YAGARTO Tool to compile my code for CPU-AT91SAM7X512. This tool provide ECLIPSE as editor and GCC VERSON 4.2.1 as compiler. I...

Hello, I m using YAGARTO Tool to compile my code for CPU-AT91SAM7X512. This tool provide ECLIPSE as editor and GCC VERSON 4.2.1 as compiler. I developed one project which is consuming code memory around 265KBytes and 33KBytes of RAM. When i m runing this code it works ok. Now i add other .C & .H files. But i m not calling any function or not using any variables out of these last added files. I...


AT91SAM7xek Eclipse & ucos

Started by boerrick in AT91SAM ARM12 years ago 6 replies

Hello Hello, I'm testing with the AT91SAM7xek evaluation kit. My final object will be communicating via Ethernet using TCP/IP. My first...

Hello Hello, I'm testing with the AT91SAM7xek evaluation kit. My final object will be communicating via Ethernet using TCP/IP. My first projects I made in IAR. Now I reached the 32kb compiler code limitation. Therefore I started with Eclipse. I can compile code, when I make the makefile myself. Now I'm trying to generate Eclipse my makefile. Therefore I have installed the plugin ARM ...


CrossWorks and USB Mass Storage problem

Started by xtyc...@seznam.cz in AT91SAM ARM10 years ago 7 replies

Hello Everyone, I'm woking on the USB Mass Storage device for the AT91SAM7XC256. I use the CrossWorks compiler and wanted to see if anyone...

Hello Everyone, I'm woking on the USB Mass Storage device for the AT91SAM7XC256. I use the CrossWorks compiler and wanted to see if anyone else here has already converted demo aplication from the Atmel GCC USB Framework (and/or similar) for CrossWorks or if someone has their own and will share it? I lost one month of my life on it and it still isn'tworkning :-( . Thanks, Martin. Ps: I...


SAM7 EK sample hex files?

Started by Richard in AT91SAM ARM14 years ago 2 replies

Does anyone have a sample hex files for the SAM7 Eval Kit? I want to test it with the flash downloader. If possible, I'd rather not...

Does anyone have a sample hex files for the SAM7 Eval Kit? I want to test it with the flash downloader. If possible, I'd rather not install the "other" compiler, if you know what I mean :-) I just need a simple program, may be a LED blinker or something, to verify that the fla


CodeSourcery and AT91SAM7X128 cross development

Started by "a.t...@ymail.com" in AT91SAM ARM9 years ago 2 replies

Hi all, I am trying to use recent CodeSourcery Lite tools to compile C code for AT91SAM7X128. Unfortunately I am struggling with compiler/linker...

Hi all, I am trying to use recent CodeSourcery Lite tools to compile C code for AT91SAM7X128. Unfortunately I am struggling with compiler/linker options and libraries to get binary. My application is supposed to run from FLASH in Thumb mode, but there will be necessary to include some ARM code for startup and exceptions/interrupts handling. In order to do that I will put ARM functions in separate...


2 Byte Operations

Started by "ICLI, Bekir (EXT)" in AT91SAM ARM11 years ago 1 reply

Hi all, I have turned on the mmu alignment checks so that I can catch the misaligned structs. But strangely the compiler uses always...

Hi all, I have turned on the mmu alignment checks so that I can catch the misaligned structs. But strangely the compiler uses always byte-wise operations (strb/ldrb) for the 2byte read/writes, where, I thought, it would use ldrh/ldrb.. This occurs in a strange point where my destination address is byte-wise aligned (0x10173545) and I am doing a 2 byte operation.. Normally an exception sh...