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Dependencies: mbed
Revision 1:02e36b65d214, committed 2018-10-30
- Comitter:
- Pitiwut
- Date:
- Tue Oct 30 17:47:56 2018 +0000
- Parent:
- 0:e33f65054b23
- Commit message:
- minor edit I
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
diff -r e33f65054b23 -r 02e36b65d214 main.cpp
--- a/main.cpp Mon Oct 29 18:16:05 2018 +0000
+++ b/main.cpp Tue Oct 30 17:47:56 2018 +0000
@@ -1,20 +1,20 @@
#include "mbed.h"
-
-/*
+/**********************
* MCP4922
- */
+ **********************/
+
///SPI Interface
SPI MCP4922_SPI(D11,D12,D13);//MOSI ,MISO ,SCK
DigitalOut MCP4922_CS(D10);//CS
+
//Digital Output
DigitalOut MCP4922_LDAC(D8);
DigitalOut MCP4922_SHDN(D9);
-
int main()
{
/******************************
- *setup
+ ***** setup *******
******************************/
/////////setup SPI//////////
@@ -36,13 +36,11 @@
//loop
while(1) {
-
-
- /*
+ /******************************************************************************
* Set DAC output channal A @ 2.5v Vref = 3.3v , DAC 12 bit ,Gain =0, Unbuffer
* So DAC data = 3103
* SPI data format CH,BUF,GA,SHDN,DATA[12:0]
- */
+ ******************************************************************************/
/////prepare Data to tranfer/////
//create data buffer