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This repository was archived by the owner on Dec 6, 2018. It is now read-only.

Commit 81d0565

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Merge pull request #389 from forGGe/g378_migrate_exti
Migrate EXTI example
2 parents 5f9eb56 + 8e671f3 commit 81d0565

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7 files changed

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‎doc/sphinx/source/examples/blinky.rst‎

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* For TivaC launchpad::
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tcore --sudo flash
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tcore flash --sudo
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* For old STM32F407G-DISC boards, with STLINK/V2::
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tcore --sudo flash
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tcore flash --sudo
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* For new STM32F407G-DISC1 boards, with STLINK/V2.1::
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tcore --sudo flash --debugger-config stlink-v2.1
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tcore flash --sudo --debugger-config stlink-v2.1
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Expected output
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~~~~~~~~~~~~~~~
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External interrupts from user button
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------------------------------------
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:Location: https://github.com/theCore-embedded/example_button_interrupt
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:External HW: UART-to-USB converter
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EXTI - the external interrupt.
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An external interrupt is a computer system interrupt that happens as a result
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of outside interference, whether that’s from the user, from peripherals,
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from other hardware devices or through a network. These are different
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than internal interrupts that happen automatically as the machine
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reads through program instructions.
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-- Techopedia_
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In this application, one particular type of external interrupt is used:
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GPIO line interrupt. When voltage level changes on the line (e.g. when button is
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pressed), interrupt is generated.
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.. STARTOF COMMON SECTION MARKER
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Supported targets (boards)
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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+---------------------+--------------------------+-----------------------------------+
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| Target name | Configuration file | Description |
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+=====================+==========================+===================================+
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| stm32f4_disc | stm32f4_discovery.json | STM32F4 discovery board |
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+---------------------+--------------------------+-----------------------------------+
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| tiva_tm4c_launchpad | tiva_tm4c_launchpad.json | TM4C123G LaunchPad Evaluation Kit |
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+---------------------+--------------------------+-----------------------------------+
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Wiring
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~~~~~~
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* If you have Tiva TM4C Launchpad - simply connect it to the USB.
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* If you have STM32F4 Discovery board:
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#. Attach any preferable UART-to-USB
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converter module (`such as this`_) according to following pinout:
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+-------------------+-----------------+
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| PD8 (USART3 TX) | module's RX |
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+-------------------+-----------------+
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| PD9 (USART3 RX) | module's TX |
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+-------------------+-----------------+
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| GND | module's GND |
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+-------------------+-----------------+
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.. image:: https://i.imgur.com/dRVRHV2.jpg
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:alt: UART wiring for stm32f4discovery EXTI example
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#. Connect your STM32 Discovery board to the PC.
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Preparing
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~~~~~~~~~
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#. Install and initialize theCore (if not done previously)::
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pip3 install tcore
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tcore bootstrap
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#. Download the example::
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tcore init --remote https://github.com/theCore-embedded/example_button_interrupt
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#. Step into the project directory::
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cd example_button_interrupt
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Building
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~~~~~~~~
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* For STM32 Discovery board::
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tcore compile --target stm32f4_disc
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* For Tiva TM4C LaunchPad::
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tcore compile --target tiva_tm4c_launchpad
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Running
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~~~~~~~
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#. Launch ``minicom`` with device associated with USB <-> UART converter.
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(``/dev/ttyUSB0`` here used as an example)::
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# From new terminal
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tcore runenv "minicom -D /dev/ttyUSB0"
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Or the same, but with superuser permissions::
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# From new terminal
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tcore runenv --sudo "minicom -D /dev/ttyUSB0"
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#. Run:
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* On TivaC launchpad::
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tcore flash --sudo
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* For old STM32F407G-DISC boards, with STLINK/V2::
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tcore flash --sudo
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* For new STM32F407G-DISC1 boards, with STLINK/V2.1::
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tcore flash --sudo --debugger-config stlink-v2.1
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Expected output
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~~~~~~~~~~~~~~~
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Observe console output using ``minicom`` if running on the embedded device)::
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Welcome to theCore
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the_core v0.3.0.307 9ff344b-dirty
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Starting EXTI (button interrupt) demo
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Every time you press a button (SW1 on TivaC board, USR_BTN on STM32F4 Discovery),
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following output will be displayed::
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Button pressed!
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.. _such as this: http://www.geekfactory.mx/wp-content/uploads/2013/06/converdidor_usb_ttl_rs232_pl_2303hx_01.jpg
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.. _Techopedia: https://www.techopedia.com/definition/7115/external-interrupt
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.. ENDOF COMMON SECTION MARKER

‎doc/sphinx/source/examples/hello-world.rst‎

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.. _theCore_hello_world:
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Simple host hello world example
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-------------------------------
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Simple Hello World example
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--------------------------
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:Location: https://github.com/theCore-embedded/example_hello_world
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:External HW: UART-to-USB converter for STM32F4Discovery board
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* On TivaC launchpad::
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tcore --sudo flash
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tcore flash --sudo
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* For old STM32F407G-DISC boards, with STLINK/V2::
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tcore --sudo flash
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tcore flash --sudo
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* For new STM32F407G-DISC1 boards, with STLINK/V2.1::
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tcore --sudo flash --debugger-config stlink-v2.1
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tcore flash --sudo --debugger-config stlink-v2.1
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* For host target, execute::
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‎doc/sphinx/source/examples/index.rst‎

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blinky
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hello-world
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exti-button-interrupt
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stm32f4-discovery-htu21d-sensor
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stm32f4-discovery-cs43l22
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stm32f4-discovery-exti
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stm32f4-discovery-bluetooth-hm10
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ti-tm4c123g-sdcard-fatfs-sdspi
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‎doc/sphinx/source/examples/stm32f4-discovery-exti.rst‎

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This file was deleted.

‎platform/stm32/export/platform/exti_manager.hpp‎

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save_handler<Gpio>(h);
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// Do not let EXTI fire unless user explicitely ask for it.
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// Do not let EXTI fire unless user explicitly ask for it.
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mask(h);
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configure_line<Gpio>(t);
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‎platform/tm4c/templates/irq.in.cpp‎

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#include <platform/exti_manager.hpp>
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#include <platform/execution.hpp>
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#include <common/console.hpp>
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#include "aux/uart_cfg.hpp"
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#include "aux/spi_cfg.hpp"
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extern "C"
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void GPIOF_Handler()
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{
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ecl::abort();
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ecl::exti_irq_proxy::deliver_irq<ecl::gpio_hw::port::f>();
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}
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/* 49 UART2 */

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