diff options
Diffstat (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/readme.txt')
| -rw-r--r-- | tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/readme.txt | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/readme.txt new file mode 100644 index 0000000..0282e23 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/TIM/TIM10_PWMOutput/readme.txt @@ -0,0 +1,85 @@ +/** + @page TIM10_PWMOutput TIM10 PWM Output example + + @verbatim + ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* + * @file TIM/TIM10_PWMOutput/readme.txt + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Description of the TIM10 PWM Output 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 shows how to configure the TIM10 peripheral in PWM (Pulse Width Modulation) +mode. + +The TIM10CLK frequency is set to SystemCoreClock (72 MHz), to get TIM10 counter +clock at 24 MHz the Prescaler is computed as following: + - Prescaler = (TIM10CLK / TIM10 counter clock) - 1 + +The TIM10 is running at 36 KHz: TIM10 Frequency = TIM10 counter clock/(ARR + 1) + = 24 MHz / 666 = 36 KHz +The TIM10 CCR1 register value is equal to 500, so the TIM10 Channel 1 generates a +PWM signal with a frequency equal to 36 KHz and a duty cycle equal to 37.5%: +TIM10 Channel1 duty cycle = (TIM10_CCR1/ TIM10_ARR + 1)* 100 = 37.5% + +The PWM waveform can be displayed using an oscilloscope. + + +@par Directory contents + + - TIM/TIM10_PWMOutput/stm32f10x_conf.h Library Configuration file + - TIM/TIM10_PWMOutput/stm32f10x_it.c Interrupt handlers + - TIM/TIM10_PWMOutput/stm32f10x_it.h Interrupt handlers header file + - TIM/TIM10_PWMOutput/main.c Main program + - TIM/TIM10_PWMOutput/system_stm32f10x.c STM32F10x system source file + +@par Hardware and Software environment + + - This example runs only on STM32F10x XL-Density Devices. + + - This example has been tested with STMicroelectronics STM3210E-EVAL (XL-Density) + evaluation board and can be easily tailored to any development board. + + - STM3210E-EVAL Set-up + - Connect PF.06 (TIM10_CH1 remapped pin) to an oscilloscope to monitor the PWM waveform + + +@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>© COPYRIGHT 2011 STMicroelectronics</center></h3> + */ |