ADC.rar_stm32f407

/** @page ADC_DualModeInterleaved Dual interleaved mode and DMA mode3 example @verbatim ******************** (C) COPYRIGHT 2013 STMicroelectronics ******************* * @file ADC/ADC_DualModeInterleaved/readme.txt * @author MCD Application Team * @version V1.5.0 * @date 06-March-2015 * @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 shows 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 clock 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 144MHz, APB2 =72MHz and ADC clock = APB2 /2. Since ADCCLK= 36MHz and Conversion rate = 6 cycle ==> Conversion Time = 36M/6cyc = 6Msps. @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 @par Hardware and Software environment - This example runs on STM32F405xx/407xx, STM32F415xx/417xx, STM32F427xx/437xx and STM32F429xx/439xx devices. - This example has been tested with STMicroelectronics STM324xG-EVAL (STM32F40xx/ STM32F41xx Devices), STM32437I-EVAL (STM32F427xx/STM32F437xx Devices) and STM324x9I-EVAL RevB (STM32F429xx/STM32F439xx Devices) evaluation boards and can be easily tailored to any other supported device and development board. - STM324xG-EVAL, STM32437I-EVAL and STM324x9I-EVAL RevB 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 - Select the project workspace related to the used device - If "STM32F40_41xxx" is selected as default project Add the following files in the project source list: - Utilities\STM32_EVAL\STM3240_41_G_EVAL\stm324xg_eval.c - Utilities\STM32_EVAL\STM3240_41_G_EVAL\stm324xg_eval_lcd.c - Utilities\STM32_EVAL\STM3240_41_G_EVAL\stm324xg_eval_fsmc_sram.c - Utilities\STM32_EVAL\STM3240_41_G_EVAL\stm324xg_eval_ioe.c - If "STM32F427_437xx" is selected as default project Add the following files in the project source list: - Utilities\STM32_EVAL\STM324x7I_EVAL\stm324x7i_eval.c - Utilities\STM32_EVAL\STM324x7I_EVAL\stm324x7i_eval_lcd.c - Utilities\STM32_EVAL\STM324x7I_EVAL\stm324x7i_eval_fmc_sram.c - Utilities\STM32_EVAL\STM324x7I_EVAL\stm324x7i_eval_ioe.c - If "STM32F429_439xx" is selected as default project Add the following files in the project source list: - Utilities\STM32_EVAL\STM324x9I_EVAL\stm324x9i_eval.c - Utilities\STM32_EVAL\STM324x9I_EVAL\stm324x9i_eval_lcd.c - Utilities\STM32_EVAL\STM324x9I_EVAL\stm324x9i_eval_fmc_sdram.c - Utilities\STM32_EVAL\STM324x9I_EVAL\stm324x9i_eval_ioe8.c - Utilities\STM32_EVAL\STM324x9I_EVAL\stm324x9i_eval_ioe16.c - Rebuild all files and load your image into target memory - Run the example * <h3><center>&copy; COPYRIGHT STMicroelectronics</center></h3> */