Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem



Posted by Nobody/Anonymous on February 27, 2007

Maybe my question is not really FreeRTOS specific, sorry for that.

I picked up FreeRTOS and lwip running on SAM7X for my coming project. Purchased sample board, tried it out etc. Works fine. As I started to design my own board I decided to change the ethernet phy to Micrel KSZ8041NL as its good price, availability quite ok and small package (32pin QFN). But despite of its said to support MII interface (as SAM7X), it lacks one signal: "TX_ER". All the other phy-s seem to have this additional pin (but have bigger package, higher price etc). And the worst thing is that I didnt understand if this pin is really needed for FreeRTOS/lwip application to work (without compomising somewhere, and if, then where?) or not. Could you please help me out with this so I can proceed with my HW. Im currently planning to enable this pin as general purpose IO and use it for different purpose (as phy does not have it).


[ Back to the top ]    [ About FreeRTOS ]    [ Privacy ]    [ Sitemap ]    [ ]

Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.

Latest News

FreeRTOS v10.2.0 is available for immediate download. MIT licensed, and including RISC-V and ARMv8-M (Cortex-M33) demos.

NXP tweet showing LPC5500 (ARMv8-M Cortex-M33) running FreeRTOS.

View a recording of the "OTA Update Security and Reliability" webinar, presented by TI and AWS.


FreeRTOS and other embedded software careers at AWS.

FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Cadence Tensilica Cortes

Espressif ESP32

IAR Partner

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers





STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

OpenRTOS and SafeRTOS

Xilinx Microblaze and Zynq partner