文件列表:

ADC_DualModeInterleaved\main.c (9745, 2013-01-18)
ADC_DualModeInterleaved\main.h (3739, 2013-01-18)
ADC_DualModeInterleaved\simulation.xls (34304, 2012-12-26)
ADC_DualModeInterleaved\stm32f4xx_conf.h (3763, 2013-01-18)
ADC_DualModeInterleaved\stm32f4xx_it.c (4469, 2013-01-18)
ADC_DualModeInterleaved\stm32f4xx_it.h (2208, 2013-01-18)
ADC_DualModeInterleaved\system_stm32f4xx.c (22024, 2013-01-18)
ADC_DualModeInterleaved (0, 2013-09-04)

/** @page ADC_DualModeInterleaved Use ADC1 and ADC2 in Dual interleaved mode and DMA mode3 @verbatim ******************** (C) COPYRIGHT 2013 STMicroelectronics ******************* * @file ADC/ADC_DualModeInterleaved/readme.txt * @author MCD Application Team * @version V1.1.0 * @date 18-January-2013 * @brief Description of the Dual interleaved mode and DMA mode3 Example ****************************************************************************** * * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); * You may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.st.com/software_license_agreement_liberty_v2 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ****************************************************************************** @endverbatim @par Example Description This example provides a short description of how to use the ADC peripheral to convert a regular channel in Dual interleaved mode using DMA in mode 3 with 5Msps. DMA mode 3 is used in interleaved mode in 6-bit and 8-bit resolutions. The Dual interleaved delay is configured 6 ADC clk cycles. On each DMA request (two data items are available) two bytes representing two ADC-converted data items are transferred as a half word. The data transfer order is similar to that of the DMA mode 2. A DMA request is generated each time 2 data items are available 1st request: ADC_CDR[15:0] = (ADC2_DR[7:0] << 8) | ADC1_DR[7:0] 2nd request: ADC_CDR[15:0] = (ADC2_DR[7:0] << 8) | ADC1_DR[7:0] The ADC1 and ADC2 are configured to convert ADC Channel 12, with conversion triggered by software. By this way, ADC channel 12 is converted each 6 cycles. In this example, the system clock is 168MHz, APB2 =84MHz and ADC clock = APB2 /2. Since ADCCLK= 42MHz and Conversion rate = 6 cycle ==> Conversion Time = 42M/6cyc = 7Msps. @note Refer to "simulation.xls" file to have the diagram simulation of the example. @par Directory contents - ADC/ADC_DualModeInterleaved/system_stm32f4xx.c STM32F4xx system clock configuration file - ADC/ADC_DualModeInterleaved/stm32f4xx_conf.h Library Configuration file - ADC/ADC_DualModeInterleaved/stm32f4xx_it.h Interrupt handlers header file - ADC/ADC_DualModeInterleaved/stm32f4xx_it.c Interrupt handlers - ADC/ADC_DualModeInterleaved/main.c Main program - ADC/ADC_DualModeInterleaved/main.h Main program header file @note The "system_stm32f4xx.c" is generated by an automatic clock configuration tool and can be easily customized to your own configuration. To select different clock setup, use the "STM32F4xx_Clock_Configuration_V1.1.0.xls" provided with the AN3***8 package available on ST Microcontrollers @par Hardware and Software environment - This example runs on STM32F40xx/STM32F41xx, STM32F427x/STM32F437x Devices. - This example has been tested with STMicroelectronics STM324xG-EVAL (STM32F40xx/ STM32F41xx Devices) and STM32437I-EVAL (STM32F427x/STM32F437x Devices) evaluation boards and can be easily tailored to any other supported device and development board. - STM324xG-EVAL and STM32437I-EVAL Set-up - Connect PC.2 to a power supply (do not forget to connect the power supply GND to the EVAL board GND) @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\STM32F4xx_StdPeriph_Templates - Open your preferred toolchain - Rebuild all files and load your image into target memory - Run the example *

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