75 lines
3.8 KiB
C
75 lines
3.8 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2023 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "py/builtin.h"
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const char mimxrt_help_text[] =
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"Welcome to MicroPython!\n"
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"\n"
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"For online docs please visit http://docs.micropython.org/\n"
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"\n"
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"For access to the hardware use the 'machine' module. \n"
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"\n"
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"Quick overview of some objects:\n"
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" machine.Pin(pin) -- get a pin, eg machine.Pin(0)\n"
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" machine.Pin(pin, m, [p]) -- get a pin and configure it for IO mode m, pull mode p\n"
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" methods: init(..), value([v]), high(), low())\n"
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"\n"
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" Pins are numbered board specific, either 0-n, or 'D0'-'Dn', or 'A0' - 'An',\n"
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" according to the boards's pinout sheet.\n"
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" Pin IO modes are: Pin.IN, Pin.OUT, Pin.OPEN_DRAIN\n"
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" Pin pull modes are: Pin.PULL_UP, Pin.PULL_UP_47K, Pin.PULL_UP_22K, Pin.PULL_DOWN, Pin.PULL_HOLD\n"
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" machine.ADC(pin) -- make an analog object from a pin\n"
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" methods: read_u16()\n"
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" machine.UART(id, baudrate=115200) -- create an UART object (id=1 - 8, board-specific)\n"
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" methods: init(), write(buf), any()\n"
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" buf=read(n), readinto(buf), buf=readline()\n"
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" The RX and TX pins are fixed and board-specific.\n"
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" machine.SoftI2C() -- create a Soft I2C object\n"
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" machine.I2C(id) -- create a HW I2C object\n"
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" methods: readfrom(addr, buf, stop=True), writeto(addr, buf, stop=True)\n"
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" readfrom_mem(addr, memaddr, arg), writeto_mem(addr, memaddr, arg)\n"
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" SoftI2C allows to use any pin for sda and scl, HW I2C id's and pins are fixed\n"
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" machine.SoftSPI(baudrate=1000000) -- create a Soft SPI object\n"
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" machine.SPI(id, baudrate=1000000) -- create a HW SPI object\n"
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" methods: read(nbytes, write=0x00), write(buf), write_readinto(wr_buf, rd_buf)\n"
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" SoftSPI allows to use any pin for SPI, HW SPI id's and pins are fixed\n"
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" machine.Timer(id, freq, callback) -- create a hardware timer object (id=0,1,2)\n"
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" eg: machine.Timer(freq=1, callback=lambda t:print(t))\n"
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" machine.RTC() -- create a Real Time Clock object\n"
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" methods: init(), datetime([dateime_tuple]), now()\n"
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" machine.PWM(pin, freq, duty_u16[, kw_opts]) -- create a PWM object\n"
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" methods: init(), duty_u16([value]), duty_ns([value]), freq([value])\n"
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"\n"
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"Useful control commands:\n"
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" CTRL-C -- interrupt a running program\n"
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" CTRL-D -- on a blank line, do a soft reset of the board\n"
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" CTRL-E -- on a blank line, enter paste mode\n"
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"\n"
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"For further help on a specific object, type help(obj)\n"
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"For a list of available modules, type help('modules')\n"
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;
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