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/**
@page Adafruit_LCD_1_8_SD_Joystick Demo P-NUCLEO-WB55
@verbatim
******************************************************************************
* @file readme.txt
* @author MCD Application Team
* @brief Description of P-NUCLEO-WB55 Demo
******************************************************************************
*
* Copyright (c) 2019 STMicroelectronics International N.V. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted, provided that the following conditions are met:
*
* 1. Redistribution of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of other
* contributors to this software may be used to endorse or promote products
* derived from this software without specific written permission.
* 4. This software, including modifications and/or derivative works of this
* software, must execute solely and exclusively on microcontroller or
* microprocessor devices manufactured by or for STMicroelectronics.
* 5. Redistribution and use of this software other than as permitted under
* this license is void and will automatically terminate your rights under
* this license.
*
* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
@endverbatim
@par Demo Description
This demonstration firmware is based on STM32Cube. It helps you to discover STM32
Cortex-M devices that can be plugged on a STM32 Nucleo board.
At the beginning of the main program the HAL_Init() function is called to reset
all the peripherals, initialize the Flash interface and the systick.
Then the SystemClock_Config() function is used to configure the system clock
(SYSCLK) to run at 64 MHz.
Below you find the sequence to discover the demonstration :
- Check the availability of adafruit 1.8" TFT shield on top of STM32 Nucleo
board. This is done by reading the state of IO PA.00 pin (mapped to JoyStick
available on adafruit 1.8" TFT shield). If the state of PA.00 is high then
the adafruit 1.8" TFT shield is available.
- Adafruit 1.8" TFT shield is not available:
LED2 is toggling with a first frequency equal to ~1Hz.
Pressing User button lets LED2 toggling with a second frequency equal to ~5Hz.
Pressing User button again, changes LED2 toggling frequency to ~10Hz.
This is done in an infinite loop.
- Adafruit 1.8" TFT shield is available:
LED2 is turned ON, because it's sharing the same pin with the SPI CLK signal
used to communicate with the Adafruit 1.8" TFT shield.
A menu will be displayed on TFT. Follow instructions below:
- Joystick DOWN to continue menu display
- Choose the desired display mode: Press Joystick DOWN for automatic mode
or Joystick UP for manual mode.
- Manual Mode selected:
Images available on SD Card, are displayed by pressing Joystick RIGHT
to display next image or Joystick LEFT to display previous one.
Pressing long (~1s) Joystick SEL, switches display mode to automatic one.
- Automatic Mode selected:
Images available on SD Card are displayed sequentially in a forever loop.
It is worth noting that the application manages some errors occurring during the
access to uSD card to parse bmp images:
- If SD Card is not FAT formatted, a message will be displayed on TFT.
In this case, format the SD card and put into its root directory the .bmp
files available within the FW package under Utilities\Media\Pictures folder.
- If the content of the SD card is other than a bitmap file, a message will
be displayed on TFT mentioning that it is not supported.
In this case, put into the SD card's root directory the .bmp
files available within the FW package under Utilities\Media\Images\Nucleo folder which are respecting
the following criteria:
o Dimensions: 128x160
o Width: 128 pixels
o Height: 160 pixels
o Bit depth: 16
o Item type: BMP file
o The name of the bmp image file must not exceed 11 characters (including
.bmp extension).
@note Care must be taken when using HAL_Delay(), this function provides accurate
delay (in milliseconds) based on variable incremented in SysTick ISR.
This implies that if HAL_Delay() is called from a peripheral ISR process,
then the SysTick interrupt must have higher priority (numerically lower)
than the peripheral interrupt. Otherwise the caller ISR process will be blocked.
To change the SysTick interrupt priority you have to use HAL_NVIC_SetPriority() function.
@note The application need to ensure that the SysTick time base is always set to
1 millisecond to have correct HAL operation.
@par Keywords
System, TFT, SD Card, Joystick
@par Directory contents
- Adafruit_LCD_1_8_SD_Joystick/Inc/stm32wbxx_hal_conf.h HAL configuration file
- Adafruit_LCD_1_8_SD_Joystick/Inc/stm32wbxx_it.h Interrupt handlers header file
- Adafruit_LCD_1_8_SD_Joystick/Inc/main.h Header for main.c module
- Adafruit_LCD_1_8_SD_Joystick/Inc/app_fatfs.h Header for app_fatfs.c module
- Adafruit_LCD_1_8_SD_Joystick/Inc/ffconf.h FAT file system module configuration file
- Adafruit_LCD_1_8_SD_Joystick/Src/stm32wbxx_it.c Interrupt handlers
- Adafruit_LCD_1_8_SD_Joystick/Src/stm32wbxx_hal_msp.c HAL MSP configuration file
- Adafruit_LCD_1_8_SD_Joystick/Src/main.c Main program
- Adafruit_LCD_1_8_SD_Joystick/Src/app_fatfs.c FatFs application file
- Adafruit_LCD_1_8_SD_Joystick/Src/system_stm32wbxx.c STM32WBxx system source file
@par Hardware and Software environment
- This example runs on STM32WB55xx devices.
- This example has been tested with P-NUCLEO-WB55 board and can be
easily tailored to any other supported device and development board.
- A SDSC microSD card (capacity up to 4GB), must contain the .bmp files at root
available under the FW package Utilities\Media\Pictures folder.
- Adafruit 1.8" TFT shield must be connected on CN5,CN6, CN8 and CN9 Arduino connectors,
for more details please refer to UM1726.
For more details about the adafruit 1.8" TFT shield, please visit:
http://www.adafruit.com/blog/2012/04/26/new-product-adafruit-1-8-18-bit-color-tft-shield-wmicrosd-and-joystick/
@par How to use it ?
In order to make the program work, you must do the following :
- Open your preferred toolchain
- Rebuild all files and load your image into target memory
- Run the example
* <h3><center>© COPYRIGHT STMicroelectronics</center></h3>
*/
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