Network protocol stack runs on ARM MCUs

Helping Hand Software has ported its embedded TCP/IP protocol stack to ARM based microcontrollers.

Helping Hand Software has ported its embedded TCP/IP protocol stack to ARM based microcontrollers.

The port was performed specifically using IAR Systems Embedded Workbench software tools, and the Olimex LPC-E2129 development board.

The development board is built around the Philips LPC2129 ARM7 based microcontroller, and additionally has an Ethernet connection.

Helping Hand Software has up until now targeted the 8051 market with its TCP/IP stack.

This port now additionally enables the company to support ARM based systems in the increasingly important area of connecting embedded systems to an Ethernet network.

The port itself was reasonably straightforward, with the only major piece of work being the implementation of ARM-specific code in the timers module to setup and generate interrupts from an on-chip timer.

The stack has also been built using the Gnu toolchain, which was achieved simply by changing the declaration of the timer interrupt service routine to conform to that required by the GCC compiler.

Other compilers can be supported in the same way.

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