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

1 files changed, 85 insertions, 0 deletions

diff --git a/src/stm32lib/examples/TIM/Parallel_Synchro/readme.txt b/src/stm32lib/examples/TIM/Parallel_Synchro/readme.txt
new file mode 100755
index 0000000..8817873
--- /dev/null
+++ b/src/stm32lib/examples/TIM/Parallel_Synchro/readme.txt
@@ -0,0 +1,85 @@
+/******************** (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 Parallel_Synchro 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 synchronize TIM peripherals in parallel mode.

+In this example three timers are used:

+

+Timers synchronisation in parallel mode:

+

+1/TIM2 is configured as Master Timer:

+ - PWM Mode is used

+ - The TIM2 Update event is used as Trigger Output 

+ 

+2/TIM3 and TIM4 are slaves for TIM2,

+ - PWM Mode is used

+ - The ITR1(TIM2) is used as input trigger for both slaves 

+ - Gated mode is used, so starts and stops of slaves counters are controlled 

+   by the Master trigger output signal(update event).

+

+The TIMxCLK is fixed to 72 MHz, the TIM2 counter clock is 72 MHz.

+The Master Timer TIM2 is running at TIM2 frequency:

+TIM2 frequency = TIM2 counter clock/ (TIM2 period + 1) = 281.250 KHz 

+and the duty cycle is equal to TIM2_CCR1/(TIM2_ARR + 1) = 25%.

+

+The TIM3 is running:

+ - At (TIM2 frequency)/ (TIM3 period + 1) = 28.1250 KHz and a duty cycle equal to 

+TIM3_CCR1/(TIM3_ARR + 1) = 30%

+

+The TIM4 is running:

+ - At (TIM2 frequency)/ (TIM4 period + 1) = 56.250 KHz and a duty cycle equal to 

+TIM4_CCR1/(TIM4_ARR + 1) = 60%

+

+

+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.

+There is no need for any modification when switching between these two boards.

+

+Connect the

+- TIM2 CH1 (PA.00)

+- TIM3 CH1 (PA.06) 

+- TIM4 CH1 (PB.06) 

+pins to an oscilloscope to monitor the different waveforms.

+   

+  

+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******