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/DAC/DualModeDMA_SineWave/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/DAC/DualModeDMA_SineWave/readme.txt')
| -rwxr-xr-x | src/stm32lib/examples/DAC/DualModeDMA_SineWave/readme.txt | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/src/stm32lib/examples/DAC/DualModeDMA_SineWave/readme.txt b/src/stm32lib/examples/DAC/DualModeDMA_SineWave/readme.txt new file mode 100755 index 0000000..f369047 --- /dev/null +++ b/src/stm32lib/examples/DAC/DualModeDMA_SineWave/readme.txt @@ -0,0 +1,69 @@ +/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
+* File Name : readme.txt
+* Author : MCD Application Team
+* Version : V2.0.1
+* Date : 06/13/2008
+* Description : Description of the DAC dual mode sine wave 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 describes how to use DAC dual channel mode with DMA to generate sine
+waves on both DAC channels outpouts.
+
+Both DAC channels conversions are configured to be triggered by TIM8 TRGO triggers
+and without noise/triangle wave generation. 12bit right data alignement is selected
+since we choose to acces DAC_DHR12RD register. DMA2 channel4 is configured to
+transfer continuously, word by word, a 32-word buffer to the dual DAC register
+DAC_DHR12RD.
+
+The transfered 32buffer is made to have a sine wave generation on each DAC channel
+output. Both DAC channels are then enabled. Only DAC channel2 DMA capability is enabled.
+
+Once TIM8 is enabled, each TIM8 TRGO update event generate a DMA request which
+transfer data to the dual DAC register and DAC conversion is started. The sine
+waves can be visualized by connecting both PA.04 and PA.05 pins to an oscilloscope.
+
+
+Directory contents
+==================
+stm32f10x_conf.h Library Configuration file
+stm32f10x_it.c Interrupt handlers
+stm32f10x_it.h Header for stm32f10x_it.c
+main.c Main program
+
+
+Hardware environment
+====================
+This example runs on STMicroelectronics STM3210E-EVAL evaluation board and can be
+easily tailored to any other hardware.
+
+ - Connect PA.04 and PA.05 pins to an oscilloscope
+
+
+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_gpio.c
+ + stm32f10x_rcc.c
+ + stm32f10x_nvic.c
+ + stm32f10x_flash.c
+ + stm32f10x_dac.c
+ + stm32f10x_dma.c
+ + stm32f10x_tim.c
+
+- Link all compiled files and load your image into target memory
+- Run the example
+
+
+******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE******
|