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diff --git a/Projects/NUCLEO-WB35CE/Examples_LL/DMA/DMA_CopyFromFlashToMemory_Init/readme.txt b/Projects/NUCLEO-WB35CE/Examples_LL/DMA/DMA_CopyFromFlashToMemory_Init/readme.txt new file mode 100644 index 000000000..3d836ee19 --- /dev/null +++ b/Projects/NUCLEO-WB35CE/Examples_LL/DMA/DMA_CopyFromFlashToMemory_Init/readme.txt @@ -0,0 +1,74 @@ +/** + @page DMA_CopyFromFlashToMemory_Init DMA example + + @verbatim + ****************************************************************************** + * @file Examples_LL/DMA/DMA_CopyFromFlashToMemory_Init/readme.txt + * @author MCD Application Team + * @brief Description of the DMA example. + ****************************************************************************** + * + * Copyright (c) 2019 STMicroelectronics. All rights reserved. + * + * This software component is licensed by ST under BSD 3-Clause license, + * the "License"; You may not use this file except in compliance with the + * License. You may obtain a copy of the License at: + * opensource.org/licenses/BSD-3-Clause + * + ****************************************************************************** + @endverbatim + +@par Example Description + +How to use a DMA channel to transfer a word data buffer +from Flash memory to embedded SRAM. The peripheral initialization uses LL +initialization functions to demonstrate LL init usage. + +At the beginning of the main program the SystemClock_Config() function is used to configure the system +clock (SYSCLK) to run at 64 MHz. + +Then the LED_Init() function is used to initialize the LED2. + +Then the Configure_DMA() function is used to configure the DMA1_Channel1 to transfer the contents of a 32-word data +buffer stored in Flash memory to the reception buffer declared in RAM. + +The start of transfer is triggered by software(LL_DMA_EnableChannel()). DMA1_Channel1 memory-to-memory +transfer is enabled. Source and destination addresses incrementing is also enabled. +The transfer is started by setting the channel enable bit for DMA1_Channel1. +At the end of the transfer a Transfer Complete interrupt is generated since it +is enabled and the callback function (customized by user) is called. + +Finally, aSRC_Const_Buffer and aDST_Buffer are compared through Buffercmp() in order to +check buffers correctness. + +NUCLEO-WB35CE's LED2 can be used to monitor the transfer status: +- LED2 is turned ON if the DMA data transfer is successfully completed. +- LED2 is blinking every 1 sec in case of error. + + +@par Directory contents + + - DMA/DMA_CopyFromFlashToMemory_Init/Inc/stm32wbxx_it.h Interrupt handlers header file + - DMA/DMA_CopyFromFlashToMemory_Init/Inc/main.h Header for main.c module + - DMA/DMA_CopyFromFlashToMemory_Init/Inc/stm32_assert.h Template file to include assert_failed function + - DMA/DMA_CopyFromFlashToMemory_Init/Src/stm32wbxx_it.c Interrupt handlers + - DMA/DMA_CopyFromFlashToMemory_Init/Src/main.c Main program + - DMA/DMA_CopyFromFlashToMemory_Init/Src/system_stm32wbxx.c STM32WBxx system source file + +@par Hardware and Software environment + + - This example runs on STM32WB35CEUx devices. + + - This example has been tested with NUCLEO-WB35CE board and can be + easily tailored to any other supported device and development board. + + +@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> + */ |