Incorporates the ARM7TDMI® ARM® Thumb® Processor . Atmel’s AT91SAM7X/ is a member of a series of highly integrated Flash. Development Board for the Atmel AT91SAM7X Microcontroller trademarks or trademarks of ARM Ltd. I2C™ is a trademark of Koninklijke. Microchip AT91SAM7X ARM Microcontrollers – MCU are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Microchip.

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See the Source Code Organization section for a description of the downloaded files and information on creating a new project. Selecting the flash debug configuration. See the uIP documentation for further information. This table is interesting for demonstration purposes, but as it is necessary to leave interrupts disabled for an extended period during at19sam7x256 creation it is not recommended for use in applications with strict real time requirements.

The perl script requires Linux or, as I use, a Cygwin shell.

AT91SAM7X – bit SAM Microcontrollers – Microcontrollers and Processors

The target hardware will serve web pages to a standard web browser. For example, if the web browser computer uses IP address This is demonstrated by the sample CGI scripts included in the source code download. The size of each transmit buffer is equal to the uIP buffer size. The embedded microcontroller Flash memory will automatically get programmed with the demo application, and the debugger will break at the reset vector address 0.


See the Demo Application Hardware Setup notes above. The interaction is further simplified by the single ag91sam7x256 memory management of uIP. Simply open the rtosdemo. Demonstrates the creation of dynamic data with a simple At91sam7x2556 scripting language written by Adam Dunkels.

uIP Embedded Web Server Demo on the AT91SAM7X ARM Using FreeRTOS

This must be set appropriately for your hardware. The IP addresses used by the web browser computer and the prototyping board must be compatible.


The demo applications included in the FreeRTOS download switch to supervisor mode prior to main being called. See the Embedded Ethernet Examples List page for more information. The uIP task blocks on the semaphore with a timeout.

If this project fails to build then it is likely the version of IAR Embedded Workbench being used is too old. Functionality The demo application creates 33 tasks ark consisting predominantly of the standard demo application tasks see the demo application section for details of the individual tasks.

Atmel AT91SAM7X256

If you are not using one of these demo application projects then ensure Supervisor mode is entered before calling vTaskStartScheduler. Creates 31 of the standard demo tasks in addition to the web server task and the idle task. Click here to view a static menu. To connect to the target: The lwIP stack implements a more flexible complex memory management scheme, therefore the lwIP demo application contains a more comprehensive EMAC driver.


Entering the IP address into the web browser obviously use the correct IP address for your system. Selecting the flash debug configuration Running the demo application The IAR port cannot be executed using the IAR simulator so must be executed on the target hardware.

Ensure an Ethernet cable is connected as described above. Therefore a ‘Check’ task is created whose job it is to ensure that no errors have been detected in any of the other tasks. If this is the case, then it is also likely that the project file has been silently corrupted and will need to be restored to its original state before it can be built even with an updated IAR version. This site required JavaScript to be enabled.

Performance The xt91sam7x256 stack only permits one packet to be unacknowledged at any one time. The prototyping board should also allow the use of a standard Ethernet cable when connecting point to point, but I have not tested this configuration.

All the interrupt service routine does is signal to the uIP task via a semaphore that data at91dam7x256 available for processing.

It waits for each packet to be acknowledged individually.