/**
@page RTC_Calendar RTC_Calendar
@verbatim
******************** (C) COPYRIGHT 2009 STMicroelectronics *******************
* @file RTC/Calendar/readme.txt
* @author MCD Application Team
* @version V3.1.0
* @date 06/19/2009
* @brief Description of the RTC Calendar 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 demonstrates and explains how to use the RTC peripheral.
As an application example, it demonstrates how to setup the RTC peripheral, in terms
of prescaler and interrupts, to be used to keep time and to generate Second interrupt.
The Low Speed External (LSE) clock is used as RTC clock source.
The RTC clock can be output on the Tamper pin (PC.13). To enable this functionality,
uncomment the corresponding line: #define RTCClockOutput_Enable in the main.c file.
The RTC is in the backup (BKP) domain, still powered by VBAT when VDD is switched off,
so the RTC configuration is not lost if a battery is connected to the VBAT pin.
A key value is written in backup data register1 (BKP_DR1) to indicate if the RTC
is already configured.
The program behaves as follows:
1. After startup the program checks the backup data register1 value:
- register1 value not correct: (BKP_DR1 value is not correct or has not yet
been programmed when the program is executed for the first time) the RTC is
configured and the user is asked to set the time (entered on HyperTerminal).
- register1 value correct: this means that the RTC is configured and the time
is displayed on HyperTerminal.
2. When an External Reset occurs the BKP domain is not reset and the RTC configuration
is not lost.
3. When power on reset occurs:
- If a battery is connected to the VBAT pin: the BKP domain is not reset and
the RTC configuration is not lost.
- If no battery is connected to the VBAT pin: the BKP domain is reset and the
RTC configuration is lost.
In the RTC interrupt service routine, the LED1 toggles every 1 s.
The C library printf function is retargeted to the USART, that is, the printf
message is output to the HyperTerminal using USART1 or USART2 depending on the
EVAL board you are using.
@par Directory contents
- RTC/Calendar/stm32f10x_conf.h Library Configuration file
- RTC/Calendar/stm32f10x_it.c Interrupt handlers
- RTC/Calendar/stm32f10x_it.h Header for stm32f10x_it.c
- RTC/Calendar/main.c Main program
@par Hardware and Software environment
- This example runs on STM32F10x Connectivity line, High-Density, Medium-Density
and Low-Density Devices.
- This example has been tested with STMicroelectronics STM3210C-EVAL (STM32F10x
Connectivity line), STM3210E-EVAL (STM32F10x High-Density) and STM3210B-EVAL
(STM32F10x 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)
- STM3210C-EVAL Set-up
- Use LED1 connected to PD.07.
- Connect a null-modem female/female RS232 cable between the DB9 connector
CN6 (USART2) and PC serial port .
@note Make sure that jumpers JP19 and JP18 are open.
- Make sure that jumper JP24 is in position 1-2 to connect the 3V battery to VBAT pin
- STM3210E-EVAL Set-up
- Use LED1 connected to PF.06.
- Connect a null-modem female/female RS232 cable between the DB9 connector
CN12(when USART1 is used) and PC serial port.
- Make sure that jumper JP1 is in position 1-2 to connect the 3V battery to VBAT pin
- STM3210B-EVAL Set-up
- Use LED1 connected to PC.06.
- Connect a null-modem female/female RS232 cable between the DB9 connector
CN6(when USART1 is used) and PC serial port.
- Make sure that jumper JP11 is in position 1-2 to connect the 3V battery to VBAT pin
- Hyperterminal configuration:
- Word Length = 8 Bits
- One Stop Bit
- No parity
- BaudRate = 115200 baud
- flow control: None
@par How to use it ?
In order to make the program work, you must do the following :
- Create a project and setup all project configuration
- Add the required Library files :
- stm32f10x_gpio.c
- stm32f10x_rcc.c
- stm32f10x_rtc.c
- stm32f10x_bkp.c
- stm32f10x_pwr.c
- misc.c
- stm32f10x_usart.c
- stm32f10x_exti.c
- system_stm32f10x.c (under Libraries\CMSIS\Core\CM3)
- stm32_eval.c (under Utilities\STM32_EVAL)
- Edit stm32f10x.h file to select the device you are working on.
- Edit stm32_eval.h file to select the evaluation board you will use.
@b Tip: You can tailor the provided project template to run this example, for
more details please refer to "stm32f10x_stdperiph_lib_um.chm" user
manual; select "Peripheral Examples" then follow the instructions
provided in "How to proceed" section.
- Link all compiled files and load your image into target memory
- Run the example
@note
- Low-density devices are STM32F101xx and STM32F103xx microcontrollers where
the Flash memory density ranges between 16 and 32 Kbytes.
- Medium-density devices are STM32F101xx and STM32F103xx microcontrollers where
the Flash memory density ranges between 32 and 128 Kbytes.
- High-density devices are STM32F101xx and STM32F103xx microcontrollers where
the Flash memory density ranges between 256 and 512 Kbytes.
- Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers.
* <h3><center>© COPYRIGHT 2009 STMicroelectronics</center></h3>
*/
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STM32 内部 RTC 修正
共143个文件
h:32个
c:28个
ini:15个
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2012-12-20
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这个是一个KEIL的项目,项目解决了内部RTC随温度变化导致频率改变的问题。STM32的手册上说 内部RTC低速晶振频率典型是40K,实际上内部低速晶振的频率是会随温度变化而变化的。所以如果没有修正的话,时间会 偏差很大。这个项目实现了用TIM2对RTC的精确修正,同时应用了备份寄存器,存储修正值,掉电不丢失。
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STM32 内部 RTC 修正 (143个子文件)
Project.uvgui_weihua.bak 135KB
Project_uvproj.bak 83KB
Project_uvopt.bak 49KB
Project.Uv2.bak 13KB
Project.opt.bak 11KB
CleanObj.bat 25KB
CleanExe.bat 9KB
复制ExtRAMini.bat 4KB
生成EWARMv5.bat 4KB
复制conf.bat 4KB
生成RVMDK.bat 4KB
删除EWARMv5.bat 3KB
删除RVMDK.bat 3KB
Project.cspy.bat 2KB
列出目录结构.bat 42B
CopyHex.bat 18B
CopyHex.bat 18B
CopyHex.bat 18B
stm32f10x_tim.c 102KB
stm32f10x_rcc.c 48KB
stm32f10x_adc.c 46KB
stm32f10x_i2c.c 37KB
stm32f10x_fsmc.c 34KB
stm32f10x_usart.c 34KB
stm32f10x_can.c 31KB
system_stm32f10x.c 30KB
stm32f10x_spi.c 29KB
stm32f10x_sdio.c 28KB
stm32f10x_dma.c 27KB
stm3210e_eval_lcd.c 26KB
stm32f10x_flash.c 26KB
stm32f10x_gpio.c 19KB
core_cm3.c 17KB
main.c 15KB
stm32_eval.c 14KB
stm32f10x_dac.c 14KB
stm32f10x_pwr.c 9KB
stm32f10x_rtc.c 8KB
stm32f10x_bkp.c 8KB
misc.c 7KB
stm32f10x_exti.c 7KB
stm32f10x_wwdg.c 6KB
stm32f10x_it.c 5KB
stm32f10x_iwdg.c 5KB
stm32f10x_dbgmcu.c 4KB
stm32f10x_crc.c 3KB
Project.dbgdt 4KB
Project_flash.dep 67KB
Project.dep 31KB
Project_ram.dep 14KB
Project.dni 550B
License.doc 39KB
Project.ewd 17KB
Project.ewp 25KB
Project.eww 161B
stm32f10x.h 579KB
core_cm3.h 45KB
stm32f10x_tim.h 44KB
stm32f10x_rcc.h 28KB
fonts.h 26KB
stm32f10x_fsmc.h 26KB
stm32f10x_sdio.h 21KB
stm32f10x_adc.h 21KB
stm32f10x_dma.h 20KB
stm32f10x_can.h 20KB
stm32f10x_flash.h 19KB
stm32f10x_spi.h 18KB
stm32f10x_i2c.h 18KB
stm32f10x_gpio.h 17KB
stm32f10x_usart.h 16KB
stm32f10x_dac.h 13KB
misc.h 9KB
stm3210e_eval_lcd.h 8KB
stm32f10x_bkp.h 7KB
stm3210e_eval.h 7KB
stm32f10x_exti.h 7KB
stm32f10x_pwr.h 4KB
stm32f10x_rtc.h 4KB
stm32f10x_iwdg.h 4KB
stm32_eval.h 4KB
stm32f10x_dbgmcu.h 3KB
stm32f10x_conf.h 3KB
stm32f10x_conf.h 3KB
stm32f10x_wwdg.h 3KB
system_stm32f10x.h 2KB
stm32f10x_crc.h 2KB
stm32f10x_it.h 2KB
RunInFlash.hex 23KB
CMSIS_Core.htm 51KB
stm32f10x_flash_extsram.icf 1KB
stm32f10x_flash.icf 1KB
stm32f10x_nor.icf 1KB
stm32f10x_ram.icf 1KB
ExtRAM.ini 3KB
ExtRAM.ini 3KB
ExtNOR.ini 2KB
ExtNOR.ini 2KB
RAM.ini 1KB
RAM.ini 1KB
JLinkSettings.ini 573B
共 143 条
- 1
- 2
资源评论
- q2525142512013-11-20作用不大,只要用的不是LSE,掉电都不会走了
- gevan2252013-10-24参考参考,正在实验中,可惜我用的是HSI,作者用的HSE,我的应该没作者的准~
- banrn12013-09-22有参考意义,谢谢!
- b222352014-04-24有参考意义,谢谢! .
weihua1120
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