circuitpython/teensy
Damien George 7f9d1d6ab9 py: Overhaul and simplify printf/pfenv mechanism.
Previous to this patch the printing mechanism was a bit of a tangled
mess.  This patch attempts to consolidate printing into one interface.

All (non-debug) printing now uses the mp_print* family of functions,
mainly mp_printf.  All these functions take an mp_print_t structure as
their first argument, and this structure defines the printing backend
through the "print_strn" function of said structure.

Printing from the uPy core can reach the platform-defined print code via
two paths: either through mp_sys_stdout_obj (defined pert port) in
conjunction with mp_stream_write; or through the mp_plat_print structure
which uses the MP_PLAT_PRINT_STRN macro to define how string are printed
on the platform.  The former is only used when MICROPY_PY_IO is defined.

With this new scheme printing is generally more efficient (less layers
to go through, less arguments to pass), and, given an mp_print_t*
structure, one can call mp_print_str for efficiency instead of
mp_printf("%s", ...).  Code size is also reduced by around 200 bytes on
Thumb2 archs.
2015-04-16 14:30:16 +00:00
..
core Add core files and use same toolchain as stmhal 2014-07-14 22:48:22 -07:00
memzip_files Add support for selecting pin alternate functions from python. 2014-08-07 23:15:41 -07:00
Makefile string0.c: Move from stmhal/ to lib/. 2015-04-05 21:57:55 +03:00
README.md fix type error 2015-02-04 21:39:34 +08:00
add-memzip.sh Added memzip filesystem support for teensy 2014-01-11 16:16:20 -08:00
hal_ftm.c Add Timer support (PWM, OC, IC) for stmhal and teensy 2014-09-19 09:26:13 -07:00
hal_ftm.h Add Timer support (PWM, OC, IC) for stmhal and teensy 2014-09-19 09:26:13 -07:00
hal_gpio.c Add Timer support (PWM, OC, IC) for stmhal and teensy 2014-09-19 09:26:13 -07:00
help.c teensy: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:13:30 +00:00
import.c teensy: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:13:30 +00:00
lcd.c teensy: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:13:30 +00:00
led.c py: Overhaul and simplify printf/pfenv mechanism. 2015-04-16 14:30:16 +00:00
led.h Updated teensy to build. 2014-06-15 22:48:05 -07:00
lexerfatfs.c Updated teensy to build. 2014-06-15 22:48:05 -07:00
lexermemzip.c teensy: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:13:30 +00:00
lexermemzip.h Added memzip filesystem support for teensy 2014-01-11 16:16:20 -08:00
main.c stmhal: Make pybstdio usable by other ports, and use it. 2015-02-13 15:04:53 +00:00
make-pins.py Add Timer support (PWM, OC, IC) for stmhal and teensy 2014-09-19 09:26:13 -07:00
memzip.c teensy: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:13:30 +00:00
memzip.h Updated teensy to build. 2014-06-15 22:48:05 -07:00
mk20dx256.ld Updated teensy to build. 2014-06-15 22:48:05 -07:00
mk20dx256_af.csv Add Timer support (PWM, OC, IC) for stmhal and teensy 2014-09-19 09:26:13 -07:00
mk20dx256_prefix.c teensy: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:13:30 +00:00
modpyb.c stmhal: Make pybstdio usable by other ports, and use it. 2015-02-13 15:04:53 +00:00
mpconfigport.h py: Overhaul and simplify printf/pfenv mechanism. 2015-04-16 14:30:16 +00:00
pin_defs_teensy.c teensy: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:13:30 +00:00
pin_defs_teensy.h Add Timer support (PWM, OC, IC) for stmhal and teensy 2014-09-19 09:26:13 -07:00
qstrdefsport.h Added pyb.elapsed_millis and pyb.elapsed_micros 2014-09-28 11:24:44 -07:00
reg.c teensy: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:13:30 +00:00
reg.h Add Timer support (PWM, OC, IC) for stmhal and teensy 2014-09-19 09:26:13 -07:00
servo.c py: Change nlr_jump to nlr_raise, to aid in debugging. 2014-04-05 18:32:08 +01:00
servo.h Updated teensy to build. 2014-06-15 22:48:05 -07:00
std.h teensy: Fix function prototype. 2015-04-05 22:15:37 +03:00
teensy_hal.c stmhal: Make pybstdio usable by other ports, and use it. 2015-02-13 15:04:53 +00:00
teensy_hal.h stmhal: Make pybstdio usable by other ports, and use it. 2015-02-13 15:04:53 +00:00
teensy_pins.csv Add Timer support (PWM, OC, IC) for stmhal and teensy 2014-09-19 09:26:13 -07:00
timer.c py: Overhaul and simplify printf/pfenv mechanism. 2015-04-16 14:30:16 +00:00
timer.h Add pulse_width_percent to teensy. 2014-09-23 23:19:36 -07:00
uart.c py: Overhaul and simplify printf/pfenv mechanism. 2015-04-16 14:30:16 +00:00
usb.c teensy: Prefix includes with py/; remove need for -I../py. 2015-01-01 21:13:30 +00:00
usb.h stmhal: Make pybstdio usable by other ports, and use it. 2015-02-13 15:04:53 +00:00

README.md

Build Instructions for Teensy 3.1

Currently the Teensy 3.1 port of Micro Python builds under Linux and not under Windows.

The tool chain required for the build can be found at https://launchpad.net/gcc-arm-embedded.

Download the current Linux *.tar.bz2 file. Instructions regarding unpacking the file and moving it to the correct location as well as adding the extracted folders to the enviroment variable can be found at http://eliaselectronics.com/stm32f4-tutorials/setting-up-the-stm32f4-arm-development-toolchain/

In order to download the firmware image to the teensy, you'll need to use the downloader included with TeensyDuino. The following assumes that you have TeensyDuino installed and set the ARDUINO environment variable pointing to the where Arduino with TeensyDuino is installed.

cd teensy
ARDUINO=~/arduino-1.0.5 make

To upload micropython to the Teensy 3.1.

Press the Program button on the Teensy 3.1

sudo ARDUINO=~/arduino-1.0.5/ make deploy

Currently, the Python prompt is through the USB serial interface, i.e.

minicom -D /dev/ttyACM0

TIPS

Install 49-teensy.rules into /etc/udev/rules.d

If you install the 49-teensy.rules file from http://www.pjrc.com/teensy/49-teensy.rules into your /etc/udev/rules.d folder then you won't need to use sudo:

sudo cp ~/Downloads/49-teensy.rules /etc/udev/rules.d
sudo udevadm control --reload-rules

Unplug and replug the teensy board, and then you can use: ARDUINO=~/arduino-1.0.5/ make deploy

Create a GNUmakefile to hold your ARDUINO setting.

Create a file call GNUmakefile (note the lowercase m) in the teensy folder with the following contents:

$(info Executing GNUmakefile)

ARDUINO=${HOME}/arduino-1.0.5
$(info ARDUINO=${ARDUINO})

include Makefile

GNUmakefile is not checked into the source code control system, so it will retain your settings when updating your source tree. You can also add additional Makefile customizations this way.