158 lines
7.6 KiB
Plaintext
158 lines
7.6 KiB
Plaintext
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/**
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@page Demo Demo STM32F030R8-Nucleo Rev C
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@verbatim
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******************************************************************************
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* @file readme.txt
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* @author MCD Application Team
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* @brief Description of STM32F030R8-Nucleo Rev C Demo
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******************************************************************************
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*
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* Copyright (c) 2016 STMicroelectronics International N.V. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted, provided that the following conditions are met:
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*
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* 1. Redistribution of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of other
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* contributors to this software may be used to endorse or promote products
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* derived from this software without specific written permission.
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* 4. This software, including modifications and/or derivative works of this
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* software, must execute solely and exclusively on microcontroller or
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* microprocessor devices manufactured by or for STMicroelectronics.
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* 5. Redistribution and use of this software other than as permitted under
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* this license is void and will automatically terminate your rights under
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* this license.
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*
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* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
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* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
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* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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@endverbatim
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@par Demo Description
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This demonstration firmware is based on STM32Cube. It helps you to discover STM32
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Cortex-M devices that can be plugged on a STM32 Nucleo board.
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At the beginning of the main program the HAL_Init() function is called to reset
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all the peripherals, initialize the Flash interface and the systick.
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Then the SystemClock_Config() function is used to configure the system clock
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(SYSCLK) to run at 48 MHz.
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Below you find the sequence to discover the demonstration :
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- Check the availability of adafruit 1.8" TFT shield on top of STM32 Nucleo
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board. This is done by reading the state of IO PB.00 pin (mapped to JoyStick
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available on adafruit 1.8" TFT shield). If the state of PB.00 is high then
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the adafruit 1.8" TFT shield is available.
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- Adafruit 1.8" TFT shield is not available:
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LED2 is toggling with a first frequency equal to ~1Hz.
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Pressing User button lets LED2 toggling with a second frequency equal to ~5Hz.
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Pressing User button again, changes LED2 toggling frequency to ~10Hz.
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This is done in an infinite loop.
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- Adafruit 1.8" TFT shield is available:
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LED2 is turned ON, because it's sharing the same pin with the SPI CLK signal
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used to communicate with the Adafruit 1.8" TFT shield.
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A menu will be displayed on TFT. Follow instructions below:
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- Joystick DOWN to continue menu display
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- Choose the desired display mode: Press Joystick DOWN for automatic mode
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or Joystick UP for manual mode.
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- Manual Mode selected:
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Images available on SD Card, are displayed by pressing Joystick RIGHT
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to display next image or Joystick LEFT to display previous one.
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Pressing long (~1s) Joystick SEL, switches display mode to automatic one.
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- Automatic Mode selected:
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Images available on SD Card are displayed sequentially in a forever loop.
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It is worth noting that the application manages some errors occurred during the
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access to uSD card to parse bmp images:
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- If SD Card is not FAT formatted, a message will be displayed on TFT.
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In this case, format the SD card and put into its root directory the .bmp
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files available within the FW package under Utilities\Media\Images folder.
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- If the content of the SD card is other than a bitmap file, a message will
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be displayed on TFT mentioning that it is not supported.
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In this case, put into the SD card's root directory the .bmp
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files available within the FW package under Utilities\Media\Images folder which are respecting
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the following criteria:
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o Dimensions: 128x160
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o Width: 128 pixels
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o Height: 160 pixels
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o Bit depth: 16
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o Item type: BMP file
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o The name of the bmp image file must not exceed 11 characters (including
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.bmp extension).
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@note Care must be taken when using HAL_Delay(), this function provides accurate
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delay (in milliseconds) based on variable incremented in SysTick ISR.
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This implies that if HAL_Delay() is called from a peripheral ISR process,
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then the SysTick interrupt must have higher priority (numerically lower)
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than the peripheral interrupt. Otherwise the caller ISR process will be blocked.
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To change the SysTick interrupt priority you have to use HAL_NVIC_SetPriority() function.
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@note The application need to ensure that the SysTick time base is always set to
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1 millisecond to have correct HAL operation.
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@par Directory contents
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- Demonstrations/Inc/stm32f0xx_hal_conf.h HAL configuration file
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- Demonstrations/Inc/stm32f0xx_it.h Interrupt handlers header file
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- Demonstrations/Inc/main.h Header for main.c module
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- Demonstrations/Inc/fatfs_storage.h Header for fatfs_storage.c module
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- Demonstrations/Inc/ffconf.h FAT file system module configuration file
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- Demonstrations/Src/stm32f0xx_it.c Interrupt handlers
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- Demonstrations/Src/main.c Main program
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- Demonstrations/Src/fatfs_storage.c Storage (FatFs) driver
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- Demonstrations/Src/system_stm32f0xx.c STM32F0xx system source file
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@par Hardware and Software environment
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- This example runs on STM32F030R8 devices.
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- This example has been tested with STM32F030R8-Nucleo Rev C board and can be
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easily tailored to any other supported device and development board.
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- A SDSC microSD card (capacity up to 4GB), must contain the .bmp files at root
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available under the FW package Utilities\Media\Images folder.
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- Adafruit 1.8" TFT shield must be connected on CN5,CN6, CN8 and CN9 Arduino connectors,
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for more details please refer to UM1726.
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For more details about the adafruit 1.8" TFT shield, please visit:
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http://www.adafruit.com/blog/2012/04/26/new-product-adafruit-1-8-18-bit-color-tft-shield-wmicrosd-and-joystick/
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@par How to use it ?
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In order to make the program work, you must do the following :
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- Open your preferred toolchain
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- Rebuild all files and load your image into target memory
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- Run the example
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* <h3><center>© COPYRIGHT STMicroelectronics</center></h3>
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*/
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