aboutsummaryrefslogtreecommitdiffstats
path: root/src/stm32lib/examples/DAC/OneChannelDMA_Escalator/readme.txt
diff options
context:
space:
mode:
Diffstat (limited to 'src/stm32lib/examples/DAC/OneChannelDMA_Escalator/readme.txt')
-rwxr-xr-xsrc/stm32lib/examples/DAC/OneChannelDMA_Escalator/readme.txt68
1 files changed, 68 insertions, 0 deletions
diff --git a/src/stm32lib/examples/DAC/OneChannelDMA_Escalator/readme.txt b/src/stm32lib/examples/DAC/OneChannelDMA_Escalator/readme.txt
new file mode 100755
index 0000000..d5e132a
--- /dev/null
+++ b/src/stm32lib/examples/DAC/OneChannelDMA_Escalator/readme.txt
@@ -0,0 +1,68 @@
+/******************** (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 one channel DMA escalator 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 one DAC channel mode with DMA to generate an
+escalator signal on DAC channel1 outpout.
+
+DAC channel1 conversion is configured to be triggered by TIM6 TRGO triggers and
+without noise/triangle wave generation. 8bit right data alignement is selected
+since we choose to acces DAC_DHR8R1 register.
+DMA2 channel3 is configured to transfer continuously, byte by byte, a 6-byte
+buffer to the DAC1 register DAC_DHR8R1.
+
+The transfered 6bytes buffer is made to have an escalator signal on DAC channel1
+output. DAC channel1 is then enabled. Once TIM6 is enabled, each TIM6 TRGO update
+event generate a DMA request which transfer data to the DAC1 register and DAC
+conversion is started. The escalator signal can be visualized by connecting PA.04
+pin 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 pin 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******