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author | Trygve Laugstøl <trygvis@inamo.no> | 2017-01-25 22:24:18 +0100 |
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committer | Trygve Laugstøl <trygvis@inamo.no> | 2017-01-25 22:29:25 +0100 |
commit | 40e04e3772726829d66c12e69f24b03920d79c67 (patch) | |
tree | 636811bad956798c9d5d22de9e7ba8c799b8d791 /tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/IWDG/IWDG_Reset/readme.txt | |
parent | 2fff65aed2477a503c72629d27e2a330d30c02d1 (diff) | |
download | stm32f103-playground-40e04e3772726829d66c12e69f24b03920d79c67.tar.gz stm32f103-playground-40e04e3772726829d66c12e69f24b03920d79c67.tar.bz2 stm32f103-playground-40e04e3772726829d66c12e69f24b03920d79c67.tar.xz stm32f103-playground-40e04e3772726829d66c12e69f24b03920d79c67.zip |
o Moving tinyprintf and stm libraries under thirdparty.
Diffstat (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/IWDG/IWDG_Reset/readme.txt')
-rw-r--r-- | tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/IWDG/IWDG_Reset/readme.txt | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/IWDG/IWDG_Reset/readme.txt b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/IWDG/IWDG_Reset/readme.txt deleted file mode 100644 index 667f562..0000000 --- a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/IWDG/IWDG_Reset/readme.txt +++ /dev/null @@ -1,147 +0,0 @@ -/** - @page IWDG_Reset IWDG Reset example - - @verbatim - ******************** (C) COPYRIGHT 2011 STMicroelectronics ******************* - * @file IWDG/IWDG_Reset/readme.txt - * @author MCD Application Team - * @version V3.5.0 - * @date 08-April-2011 - * @brief Description of the IWDG Reset 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 update at regular period the IWDG reload counter and -how to simulate a software fault generating an MCU IWDG reset on expiry of a -programmed time period. - -The IWDG timeout is set to 250 ms (the timeout may varies due to LSI frequency -dispersion). - -First, the TIM5 timer is configured to measure the LSI frequency as the -LSI is internally connected to TIM5 CH4, in order to adjust the IWDG clock. - -The LSI measurement using the TIM5 is described below: - - Configure the TIM5 to remap internally the TIM5 Channel 4 Input Capture to - the LSI clock output. - - Enable the TIM5 Input Capture interrupt: after one cycle of LSI clock, the - period value is stored in a variable and compared to the HCLK clock to get - its real value. - -@note The LSI is internally connected to TIM5 IC4 only on STM32F10x Connectivity - line, High-Density Value line, High-Density and XL-Density Devices. - When using other devices, you should comment the "#define LSI_TIM_MEASURE" - in main.c file and in this case the LSI frequency is set by default to 40KHz. - -Then, the IWDG reload counter is configured to obtain 240ms according to the -measured LSI frequency. - -The IWDG reload counter is refreshed each 240ms in the main program infinite loop -to prevent a IWDG reset. -LED2 is also toggled each 240ms indicating that the program is running. - -An EXTI Line is connected to a GPIO pin, and configured to generate an interrupt -on the rising edge of the signal. - -The EXTI Line is used to simulate a software failure: once the EXTI Line event -occurs, by pressing the Key push-button, the corresponding interrupt is served. -In the ISR, a write to invalid address generates a Hardfault exception containing -an infinite loop and preventing to return to main program (the IWDG reload counter -is not refreshed). -As a result, when the IWDG counter reaches 00h, the IWDG reset occurs. -If the IWDG reset is generated, after the system resumes from reset, LED1 turns on. - -If the EXTI Line event does not occur, the IWDG counter is indefinitely refreshed -in the main program infinite loop, and there is no IWDG reset. - - -In this example the system clock is set to 24 MHz on Value line devices and to -72MHz on other devices. - -@note The IWDG Counter can be only written when the RVU flag is reset. - In this example, as the SysTick period is too higher than the IWDG Counter - Update timing (5 Cycles 40KHz RC), the Reload Value Update "RVU" flag is - not checked before reloading the counter. - -@par Directory contents - - - IWDG/IWDG_Reset/stm32f10x_conf.h Library Configuration file - - IWDG/IWDG_Reset/stm32f10x_it.c Interrupt handlers - - IWDG/IWDG_Reset/stm32f10x_it.h Header for stm32f10x_it.c - - IWDG/IWDG_Reset/main.c Main program - - IWDG/IWDG_Reset/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, High-Density Value line, 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 (Medium-Density Value line), STM3210C-EVAL - (Connectivity line), STM3210E-EVAL (High-Density and XL-Density), STM32100E-EVAL - (High-Density Value line) and STM3210B-EVAL (Medium-Density) evaluation - boards and can be easily tailored to any other supported device and development - board. - To select the STMicroelectronics evaluation board used to run the example, - uncomment the corresponding line in stm32_eval.h file (under Utilities\STM32_EVAL) - - - STM32100E-EVAL Set-up - - Use LD1 and LD2 leds connected respectively to PF.06 and PF.07 pins - - Use the KEY push button connected to PG.08 pin (EXTI Line8). - - - STM32100B-EVAL Set-up - - Use LD1 and LD2 leds connected respectively to PC.06 and PC.07 pins - - Use the KEY push button connected to PB.09 pin (EXTI Line9). - - - STM3210C-EVAL Set-up - - Use LD1 and LD2 connected respectively to PD.07 and PD.13 pins - - Use the Key push-button connected to pin PB.09 (EXTI Line9). - - - STM3210E-EVAL Set-up - - Use LD1 and LD2 leds connected respectively to PF.06 and PF.07 pins - - Use the KEY push button connected to PG.08 pin (EXTI Line8). - - - STM3210B-EVAL Set-up - - Use LD1 and LD2 leds connected respectively to PC.06 and PC.07 pins - - Use the KEY push button connected to PB.09 pin (EXTI Line9). - - -@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 - - Link all compiled files and load your image into target memory - - Run the example in standalone mode (without debugger connection) - -@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> - */ |