ports: Make new ports/ sub-directory and move all ports there.

This is to keep the top-level directory clean, to make it clear what is
core and what is a port, and to allow the repository to grow with new ports
in a sustainable way.

ports/stm32/help.c

@@ -0,0 +1,71 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2013, 2014 Damien P. George
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "py/builtin.h"
+
+const char *stmhal_help_text =
+"Welcome to MicroPython!\n"
+"\n"
+"For online help please visit http://micropython.org/help/.\n"
+"\n"
+"Quick overview of commands for the board:\n"
+"  pyb.info()    -- print some general information\n"
+"  pyb.delay(n)  -- wait for n milliseconds\n"
+"  pyb.millis()  -- get number of milliseconds since hard reset\n"
+"  pyb.Switch()  -- create a switch object\n"
+"                   Switch methods: (), callback(f)\n"
+"  pyb.LED(n)    -- create an LED object for LED n (n=1,2,3,4)\n"
+"                   LED methods: on(), off(), toggle(), intensity(<n>)\n"
+"  pyb.Pin(pin)  -- get a pin, eg pyb.Pin('X1')\n"
+"  pyb.Pin(pin, m, [p]) -- get a pin and configure it for IO mode m, pull mode p\n"
+"                   Pin methods: init(..), value([v]), high(), low()\n"
+"  pyb.ExtInt(pin, m, p, callback) -- create an external interrupt object\n"
+"  pyb.ADC(pin)  -- make an analog object from a pin\n"
+"                   ADC methods: read(), read_timed(buf, freq)\n"
+"  pyb.DAC(port) -- make a DAC object\n"
+"                   DAC methods: triangle(freq), write(n), write_timed(buf, freq)\n"
+"  pyb.RTC()     -- make an RTC object; methods: datetime([val])\n"
+"  pyb.rng()     -- get a 30-bit hardware random number\n"
+"  pyb.Servo(n)  -- create Servo object for servo n (n=1,2,3,4)\n"
+"                   Servo methods: calibration(..), angle([x, [t]]), speed([x, [t]])\n"
+"  pyb.Accel()   -- create an Accelerometer object\n"
+"                   Accelerometer methods: x(), y(), z(), tilt(), filtered_xyz()\n"
+"\n"
+"Pins are numbered X1-X12, X17-X22, Y1-Y12, or by their MCU name\n"
+"Pin IO modes are: pyb.Pin.IN, pyb.Pin.OUT_PP, pyb.Pin.OUT_OD\n"
+"Pin pull modes are: pyb.Pin.PULL_NONE, pyb.Pin.PULL_UP, pyb.Pin.PULL_DOWN\n"
+"Additional serial bus objects: pyb.I2C(n), pyb.SPI(n), pyb.UART(n)\n"
+"\n"
+"Control commands:\n"
+"  CTRL-A        -- on a blank line, enter raw REPL mode\n"
+"  CTRL-B        -- on a blank line, enter normal REPL mode\n"
+"  CTRL-C        -- interrupt a running program\n"
+"  CTRL-D        -- on a blank line, do a soft reset of the board\n"
+"  CTRL-E        -- on a blank line, enter paste mode\n"
+"\n"
+"For further help on a specific object, type help(obj)\n"
+"For a list of available modules, type help('modules')\n"
+;