1 files changed, 90 insertions, 0 deletions
diff --git a/src/stm32lib/examples/TIM/7PWM_Output/readme.txt b/src/stm32lib/examples/TIM/7PWM_Output/readme.txt
new file mode 100755
index 0000000..950ac44
--- /dev/null
+++ b/src/stm32lib/examples/TIM/7PWM_Output/readme.txt
@@ -0,0 +1,90 @@
+/******************** (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 7PWM_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.
+*******************************************************************************/
+
+Example description
+===================
+
+This example shows how to configure the TIM1 peripheral to generate 7 PWM signals 
+with 4 different duty cycles.
+
+TIM1CLK is fixed to 72 MHz, the TIM1 Prescaler is equal to 0 so the TIM1 counter
+clock used is 72 MHz.
+
+TIM1 frequency is defined as follow:
+TIM1 frequency = TIM1CLK/(TIM1_Period + 1) = 17.57 KHz.
+
+The TIM1 CCR1 register value is equal to 0x7FF, so the TIM1 Channel 1 and TIM1 
+Channel 1N generate a PWM signal with a frequency equal to 17.57 KHz 
+and a duty cycle equal to:
+TIM1 Channel1 duty cycle = TIM1_CCR1 /( TIM1_Period + 1) = 50%.
+
+The TIM1 CCR2 register value is equal to 0x5FF, so the TIM1 Channel 2 and TIM1
+Channel 2N generate a PWM signal with a frequency equal to 17.57 KHz 
+and a duty cycle equal to:
+TIM1 Channel2 duty cycle = TIM1_CCR2 / ( TIM1_Period + 1)= 37.5%.
+
+The TIM1 CCR3 register value is equal to 0x3FF, so the TIM1 Channel 3 and TIM1 
+Channel 3N generate a PWM signal with a frequency equal to 17.57 KHz 
+and a duty cycle equal to:
+TIM1 Channel3 duty cycle = TIM1_CCR3 / ( TIM1_Period + 1) = 25%.
+
+The TIM1 CCR4 register value is equal to 0x1FF, so the TIM1 Channel 4 
+generate a PWM signal with a frequency equal to 17.57 KHz 
+and a duty cycle equal to:
+TIM1 Channel4 duty cycle = TIM1_CCR4 / ( TIM1_Period + 1) = 12.5%.
+
+The TIM1 waveform can be displayed using an oscilloscope.
+ 
+
+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 TIM1 pins to an oscilloscope to monitor the different waveforms:
+  - TIM1_CH1  pin (PA.08)  
+  - TIM1_CH1N pin (PB.13)  
+  - TIM1_CH2  pin (PA.09)  
+  - TIM1_CH2N pin (PB.14)  
+  - TIM1_CH3  pin (PA.10)  
+  - TIM1_CH3N pin (PB.15)
+  - TIM1_CH4  pin (PA.11)
+  
+  
+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******