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authorTrygve Laugstøl <trygvis@inamo.no>2017-01-25 22:24:18 +0100
committerTrygve Laugstøl <trygvis@inamo.no>2017-01-25 22:29:25 +0100
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-/**
- @page SPI_CRC SPI CRC example
-
- @verbatim
- ******************** (C) COPYRIGHT 2011 STMicroelectronics *******************
- * @file SPI/CRC/readme.txt
- * @author MCD Application Team
- * @version V3.5.0
- * @date 08-April-2011
- * @brief Description of the SPI CRC example.
- ******************************************************************************
- * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
- * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
- * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
- * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
- * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
- * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
- ******************************************************************************
- @endverbatim
-
-@par Example Description
-
-This example provides a description of how to set a communication between two
-SPIs in full-duplex mode and performs a transfer from Master to Slave and
-Slave to Master followed by CRC transmission.
-
-SPI1 is configured as master and SPI2 as slave and both are in full-duplex
-configuration mode with 16bit data size and a 4.5 Mbit/s communication speed
-(for Value line devices the speed is set at 1.5 Mbit/s).
-CRC calculation is enabled for both SPIs.
-
-After enabling both SPIs, the first data from SPI2_Buffer_Tx is transmitted from
-slave followed by the first data from SPI1_Buffer_Tx send by the master. A test
-on RxNE flag is done for both master and slave to check the reception of data on
-their respective data register. The same procedure is done for the remaining data
-to transfer except the last ones.
-
-Last data from SPI1_Buffer_Tx is transmitted followed by enabling CRC transmission
-for SPI1 and the last data from SPI2_Buffer_Tx is transmitted followed by enabling
-CRC transmission for SPI2: user must take care to reduce code on this phase for
-high speed communication.
-
-Last transmitted buffer data and CRC value are then received successively on
-master and slave data registers. The received CRC value are stored on CRC1Value
-and CRC2Value respectively for SPI1 and SPI2.
-
-Once the transfer is completed a comparison is done and TransferStatus1 and
-TransferStatus2 gives the data transfer status for each data transfer direction
-where it is PASSED if transmitted and received data are the same otherwise it
-is FAILED.
-A check of CRC error flag, for the master and the salve, is done after receiving
-CRC data.
-
-@par Directory contents
-
- - SPI/CRC/stm32f10x_conf.h Library Configuration file
- - SPI/CRC/stm32f10x_it.c Interrupt handlers
- - SPI/CRC/stm32f10x_it.h Header for stm32f10x_it.c
- - SPI/CRC/main.c Main program
- - SPI/CRC/system_stm32f10x.c STM32F10x system source file
-
-@par Hardware and Software environment
-
- - This example runs on STM32F10x Connectivity line, High-Density, High-Density
- Value line, Medium-Density, XL-Density, Medium-Density Value line, Low-Density
- and Low-Density Value line Devices.
-
- - This example has been tested with STMicroelectronics STM32100E-EVAL (High-Density
- Value line), STM32100B-EVAL(STM32F10x Medium-Density Value line), STM3210E-EVAL
- (STM32F10x High-Density) and STM3210B-EVAL (STM32F10x Medium-Density)
- evaluation boards and can be easily tailored to any other supported
- device and development board.
- This example can't be tested with STMicroelectronics STM3210C-EVAL (STM32F10x
- Connectivity Line) evaluation board.
-
- - STM32100E-EVAL Set-up
- - Connect SPI1 SCK (PA.05) pin to SPI2 SCK (PB.13) pin
- - Connect SPI1 MISO (PA.06) pin to SPI2 MISO (PB.14) pin
- - Connect SPI1 MOSI (PA.07) pin to SPI2 MOSI (PB.15) pin
-
- - STM32100B-EVAL Set-up
- - Connect SPI1 SCK (PA.05) pin to SPI2 SCK (PB.13) pin
- - Connect SPI1 MISO (PA.06) pin to SPI2 MISO (PB.14) pin
- - Connect SPI1 MOSI (PA.07) pin to SPI2 MOSI (PB.15) pin
-
- - STM3210E-EVAL Set-up
- - Connect SPI1 SCK (PA.05) pin to SPI2 SCK (PB.13) pin
- - Connect SPI1 MISO (PA.06) pin to SPI2 MISO (PB.14) pin
- - Connect SPI1 MOSI (PA.07) pin to SPI2 MOSI (PB.15) pin
- @note The jumper 14 (USB Disconnect) must be set in position 1<->2 in order
- to not interfer with SPI2 MISO pin PB14.
-
- - STM3210B-EVAL Set-up
- - Connect SPI1 SCK (PA.05) pin to SPI2 SCK (PB.13) pin
- - Connect SPI1 MISO (PA.06) pin to SPI2 MISO (PB.14) pin
- - Connect SPI1 MOSI (PA.07) pin to SPI2 MOSI (PB.15) pin
-
-@par How to use it ?
-
-In order to make the program work, you must do the following :
- - Copy all source files from this example folder to the template folder under
- Project\STM32F10x_StdPeriph_Template
- - Open your preferred toolchain
- - Rebuild all files and load your image into target memory
- - Run the example
-
-@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.
-
- * <h3><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h3>
- */