文件列表:

BEEP_3SignalsGeneration (0, 2019-04-05)
BEEP_3SignalsGeneration\main.c (9793, 2018-04-27)
BEEP_3SignalsGeneration\stm8s_conf.h (4730, 2018-04-27)
BEEP_3SignalsGeneration\stm8s_it.c (13308, 2018-04-27)
BEEP_3SignalsGeneration\stm8s_it.h (5539, 2018-04-27)

/** @page BEEP_3SignalsGeneration Generation of the 3 beep signals @verbatim ******************** (C)COPYRIGHT 2014 STMicroelectronics ******************* * @file BEEP/BEEP_3SignalsGeneration/readme.txt * @author MCD Application Team * @version V2.0.4 * @date 26-April-2018 * @brief This file contains the main function for BEEP 3 Signals Generation 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 BEEP peripheral: Each time the key button is pressed the Beeper frequency changes and a corresponding led will be switched on. @par Directory contents - BEEP\BEEP_3SignalsGeneration\main.c Main file containing the "main" function - BEEP\BEEP_3SignalsGeneration\stm8s_conf.h Library Configuration file - BEEP\BEEP_3SignalsGeneration\stm8s_it.c Interrupt routines source (not used in this example) - BEEP\BEEP_3SignalsGeneration\stm8s_it.h Interrupt routines declaration @par Hardware and Software environment - This example runs on STM8S and STM8A High density, Medium density and Low density devices. @note: to run this example with STM8S Low Density devices, TIM1 should be used instead of TIM3 for LSI calibration. - This example has been tested with STMicroelectronics STM8/128-EVAL evaluation board and can be easily tailored to any other development board. - STM8/128-EVAL Set-up - Key push button - LD1..LD4 - Mono LCD - PD4 used to drive the buzzer @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\Template - Open your preferred toolchain - Add the required file: - stm8s_eval_lcd.c (under Utilities\STM8S_EVAL\Common) - Rebuild all files and load your image into target memory - Run the example - Per default, the BEEP signal is OFF and the 4 LEDs are ON. - Every time you press the Key button on the board, you will toggle the buzzer frequency in this way: 1kHz -> 2kHz -> 4kHz -> OFF -> 1kHz -> etc... - The 4 LEDs will toggle respectively. @par Hint - Enable the beeper alternate function - with STVD (menu: Debug Instrument -> MCU configuration ->AFR7: Alternate active) - with RIDE (edit the "STM8_OB.asm" file to set the AFR7 bit) - with EWSTM8 (menu: ST-LINK -> Option bytes ->AFR7: Alternate active) - Before using the LSI clock you have to configure the option bytes in order to enable the "LSI_EN". - with STVD (menu: Debug Instrument -> MCU configuration -> Options -> LSI_EN = Enabled ) - with RIDE (edit the "STM8_OB.asm" file to configure the OPT3 & NOPT3 option bytes) - with EWSTM8 (menu: ST-LINK -> Option bytes -> LSI_EN = Enabled) - Verify that the JP14 is on the up position (to enable the speaker on the STM8/128-EVAL) - Verify the speaker volume by adjusting the RV2 potentiometer position on the STM8/128-EVAL @note - High-Density STM8A devices are the STM8AF52xx STM8AF6269/8x/Ax, STM8AF51xx, and STM8AF6169/7x/8x/9x/Ax microcontrollers where the Flash memory density ranges between 32 to 128 Kbytes - Medium-Density STM8A devices are the STM8AF622x/4x, STM8AF6266/68, STM8AF612x/4x, and STM8AF6166/68 microcontrollers where the Flash memory density ranges between 8 to 32 Kbytes - High-Density STM8S devices are the STM8S207xx, STM8S007 and STM8S208xx microcontrollers where the Flash memory density ranges between 32 to 128 Kbytes. - Medium-Density STM8S devices are the STM8S105x and STM8S005 microcontrollers where the Flash memory density ranges between 16 to 32-Kbytes. - Low-Density STM8S devices are the STM8S103xx, STM8S003, STM8S001 and STM8S903xx microcontrollers where the Flash density is 8 Kbytes. *

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