G'day,

I've brought up C Forth on the Teensy 3.1.

C Forth is an implementation of Forth by Mitch Bradley, optimised for
embedded use in semi-constrained systems such as System-on-Chip
processors [2].

C Forth is used by the One Laptop per Child (OLPC) XO-1.75 and XO-4
laptops for SoC initialisation and loading of Open Firmware.

The Teensy 3.1 is a Freescale MK20DX256 ARM Cortex-M4 with a Nuvoton
MINI54 ARM Cortex-M0 management controller.  Paul Stoffregen maintains
a build environment, which can be used with or without an IDE [1].

My initial build of C Forth, without removing unnecessary features,
used 51 kB out of the available 256 kB FLASH.  It requires UART0 at
115200 baud.  Source is available [3].

The Teensy 3.1 modules I'm using were purchased from OSH Park in the
last few weeks [4].

I'm programming the device with the teensy_loader_cli program [5].


References:

1.  https://github.com/PaulStoffregen/cores.git (directory teensy3)

2.  http://dev.laptop.org/git/users/quozl/cforth/?h=3Dmitch-after-olpc

3.  http://dev.laptop.org/git/users/quozl/cforth/?h=3Darm-teensy3

4.  http://store.oshpark.com/products/teensy-3-1

5.  https://www.pjrc.com/teensy/loader_cli.html

--=20
James Cameron
http://quozl.linux.org.au/
--=20
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