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127 lines
6.1 KiB
Plaintext
127 lines
6.1 KiB
Plaintext
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/**
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@page BSP Example on how to use the BSP drivers
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@verbatim
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******************** (C) COPYRIGHT 2017 STMicroelectronics *******************
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* @file BSP/readme.txt
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* @author MCD Application Team
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* @brief Description of the BSP example.
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******************************************************************************
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions 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 its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, 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 Example Description
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This example provides a description of how to use the different BSP drivers.
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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 175 MHz and provide 50 MHz at the output PLL divided by PLL_Q.
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This frequency permit to reach 25 MHz clock needed for SD operation and in line
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with microSD specification.
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This example shows how to use the different functionalities of LCD, SD card,
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touchscreen, joystick and external memories (SDRAM, SRAM, NOR) by switching
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between all tests using key button.
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Firstly, use the joystick button to move a pointer inside a rectangle
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(up/down/right/left) and change the pointer color(select).
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Secondly, and after the touchscreen calibration, use the touchscreen
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functionality to select or activate colored circle inside a rectangle.
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Thirdly, this example shows how to use the different LCD features to display string
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with different fonts, to display different shapes and to draw a bitmap.
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Fourthly, this example shows how to erase, write and read the SD card and also
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how to detect the presence of the card.
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Fifthly, this example shows how to use the LCD log features.
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Sixthly, this example provides of how to write, read and buffers compare
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for different external memories (SDRAM, SRAM, NOR).
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Seventhly, this example shows how to read and write data in RF EEPROM. The I2C EEPROM
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memory (M24LR64) is available on separate daughter board ANT7-M24LR-A, which is not
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provided with the STM324x9I-EVAL board. To use this driver you have to connect the
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ANT7-M24LR-A to CN3 connector of STM324x9I-EVAL board.
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@note Care must be taken when using HAL_Delay(), this function provides accurate delay (in milliseconds)
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based on variable incremented in SysTick ISR. This implies that if HAL_Delay() is called from
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a peripheral ISR process, 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 needs to ensure that the SysTick time base is always set to 1 millisecond
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to have correct HAL operation.
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@par Directory contents
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- BSP/Src/main.c Main program
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- BSP/Src/system_stm32f4xx.c STM32F4xx system clock configuration file
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- BSP/Src/stm32f4xx_it.c Interrupt handlers
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- BSP/Src/joystick.c Joystick feature
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- BSP/Src/lcd.c LCD drawing features
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- BSP/Src/log.c LCD Log firmware functions
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- BSP/Src/sd.c SD features
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- BSP/Src/sdram.c SDRAM features
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- BSP/Src/sram.c SRAM features
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- BSP/Src/nor.c NOR features
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- BSP/Src/eeprom.c EEPROM features
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- BSP/Src/touchscreen.c Touchscreen feature
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- BSP/Src/ts_calibration.c Touchscreen calibration
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- BSP/Inc/main.h Main program header file
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- BSP/Inc/stm32f4xx_hal_conf.h HAL configuration file
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- BSP/Inc/stm32f4xx_it.h Interrupt handlers header file
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- BSP/Inc/lcd_log_conf.h lcd_log configuration template file
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- BSP/Inc/stlogo.h Image used for BSP example
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@par Hardware and Software environment
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- This example runs on STM32F429xx/STM32F439xx devices.
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- This example has been tested with STMicroelectronics STM324x9I-EVAL RevB
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evaluation boards and can be easily tailored to any other supported device
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and development board.
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- STM324x9I-EVAL RevB Setup: For NOR memory use, make sure that the Jumper JP9
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is open and JP5 is put in position 1-2 (NWAIT signal connected to PD6).
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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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