DMA_FLASH_RAM

  ******************** (C) COPYRIGHT 2010 STMicroelectronics *******************
  * @file    DMA/FLASH_RAM/readme.txt 
  * @author  MCD Application Team
  * @version V3.4.0
  * @date    10/15/2010
  * @brief   Description of the DMA FLASH to RAM example.
  ******************************************************************************
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Example Description

This example provides a description of how to use a DMA channel to transfer a word data buffer from FLASH memory to embedded SRAM memory.

DMA1 Channel6 is configured 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. DMA1 Channel6 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 Channel6. At the end of the transfer a Transfer Complete interrupt is generated since it is enabled. Once interrupt is generated, the remaining data to be transferred is read which must be equal to 0. The Transfer Complete Interrupt pending bit is then cleared. A comparison between the source and destination buffers is done to check that all data have been correctly transferred.

Directory contents
Hardware and Software environment
How to use it ?

In order to make the program work, you must do the following :

Tip: You can tailor the provided project template to run this example, for more details please refer to "stm32f10x_stdperiph_lib_um.chm" user manual; select "Peripheral Examples" then follow the instructions provided in "How to proceed" section.

Note:
  • Low-density Value line devices are STM32F100xx microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes.
  • Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx microcontrollers where the Flash memory density ranges between 16 and 32 Kbytes.
  • Medium-density Value line devices are STM32F100xx microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes.
  • Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx microcontrollers where the Flash memory density ranges between 64 and 128 Kbytes.
  • High-density Value line devices are STM32F100xx microcontrollers where the Flash memory density ranges between 256 and 512 Kbytes.
  • High-density devices are STM32F101xx and STM32F103xx microcontrollers where the Flash memory density ranges between 256 and 512 Kbytes.
  • XL-density devices are STM32F101xx and STM32F103xx microcontrollers where the Flash memory density ranges between 512 and 1024 Kbytes.
  • Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers.

© COPYRIGHT 2010 STMicroelectronics

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