diff options
| author | iperry <iperry@749a229e-a60e-11de-b98f-4500b42dc123> | 2009-12-17 02:37:07 +0000 |
|---|---|---|
| committer | iperry <iperry@749a229e-a60e-11de-b98f-4500b42dc123> | 2009-12-17 02:37:07 +0000 |
| commit | 32e57dac2e61e79b029593eb4d34d727bcc10678 (patch) | |
| tree | 98d7ff41993576bb150d13d5f63dc744f6812852 /src/stm32lib/examples/TIM/OnePulse/readme.txt | |
| download | librambutan-32e57dac2e61e79b029593eb4d34d727bcc10678.tar.gz librambutan-32e57dac2e61e79b029593eb4d34d727bcc10678.zip | |
Initial commit of library code, moved from leaftest repo
git-svn-id: https://leaflabs.googlecode.com/svn/trunk/library@69 749a229e-a60e-11de-b98f-4500b42dc123
Diffstat (limited to 'src/stm32lib/examples/TIM/OnePulse/readme.txt')
| -rwxr-xr-x | src/stm32lib/examples/TIM/OnePulse/readme.txt | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/stm32lib/examples/TIM/OnePulse/readme.txt b/src/stm32lib/examples/TIM/OnePulse/readme.txt new file mode 100755 index 0000000..5f00278 --- /dev/null +++ b/src/stm32lib/examples/TIM/OnePulse/readme.txt @@ -0,0 +1,71 @@ +/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
+* File Name : readme.txt
+* Author : MCD Application Team
+* Version : V2.0.1
+* Date : 06/13/2008
+* Description : Description of the TIM OnePulse 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.
+*******************************************************************************/
+
+Example description
+===================
+
+This example shows how to use the TIM peripheral to generate a One pulse Mode
+after a Rising edge of an external signal is received in Timer Input pin.
+
+The TIM2CLK frequency is set to 72 MHz, the Prescaler is 1 so the TIM2 counter
+clock is 36 MHz.
+The Autoreload value is 65535 (TIM2->ARR), so the maximum frequency value to trigger
+the TIM2 input is 500 Hz.
+
+The TIM2 is configured as follows:
+The One Pulse mode is used, the external signal is connected to TIM2 CH2 pin (PA.01),
+the Rising edge is used as active edge, the One Pulse signal is output
+on TIM2_CH1 (PA.00).
+
+The TIM_Pulse defines the delay value, the delay value is fixed to 455.08 us:
+delay = CCR1/TIM2 counter clock = 455.08 us.
+The (TIM_Period - TIM_Pulse) defines the One Pulse value, the pulse value is fixed to 1.365ms:
+One Pulse value = (TIM_Period - TIM_Pulse)/TIM2 counter clock = 1.365 ms.
+
+
+Directory contents
+==================
+stm32f10x_conf.h Library Configuration file
+stm32f10x_it.c Interrupt handlers
+stm32f10x_it.h Interrupt handlers header file
+main.c Main program
+
+
+Hardware environment
+====================
+This example runs on STMicroelectronics STM3210B-EVAL and STM3210E-EVAL evaluation
+boards and can be easily tailored to any other hardware.
+
+- Connect the external signal to the TIM2_CH2 pin (PA.01)
+- Connect the TIM2_CH1 (PA.00) pin to an oscilloscope to monitor the waveform.
+
+
+How to use it
+=============
+In order to make the program work, you must do the following:
+- Create a project and setup all your toolchain's start-up files
+- Compile the directory content files and required Library files:
+ + stm32f10x_lib.c
+ + stm32f10x_tim.c
+ + stm32f10x_gpio.c
+ + stm32f10x_rcc.c
+ + stm32f10x_nvic.c
+ + stm32f10x_flash.c
+
+- Link all compiled files and load your image into target memory
+- Run the example
+
+
+******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE******
|