Rob Toulson / Mbed 2 deprecated PE_11-01_DSPInOut

by Rob Toulson and Tim Wilmshurst from textbook "Fast and Effective Embedded Systems Design: Applying the ARM mbed"

Dependencies:   mbed

main.cpp@0:9ba494009efb, 2013-06-16 (annotated)

Committer:
robt
Date:
Sun Jun 16 15:18:06 2013 +0000
Revision:
0:9ba494009efb
by Rob Toulson and Tim Wilmshurst from textbook "Fast and Effective Embedded Systems Design: Applying the ARM mbed"

Who changed what in which revision?

UserRevisionLine numberNew contents of line
robt 0:9ba494009efb 1 /* Program Example 11.1 DSP input and Output
robt 0:9ba494009efb 2 */
robt 0:9ba494009efb 3 #include "mbed.h"
robt 0:9ba494009efb 4 //mbed objects
robt 0:9ba494009efb 5 AnalogIn Ain(p15);
robt 0:9ba494009efb 6 AnalogOut Aout(p18);
robt 0:9ba494009efb 7 Ticker s20khz_tick;
robt 0:9ba494009efb 8
robt 0:9ba494009efb 9 //function prototypes
robt 0:9ba494009efb 10 void s20khz_task(void);
robt 0:9ba494009efb 11 //variables and data
robt 0:9ba494009efb 12 float data_in, data_out;
robt 0:9ba494009efb 13
robt 0:9ba494009efb 14 //main program start here
robt 0:9ba494009efb 15 int main() {
robt 0:9ba494009efb 16 s20khz_tick.attach_us(&s20khz_task,50); //attach task to 50us tick
robt 0:9ba494009efb 17 }
robt 0:9ba494009efb 18
robt 0:9ba494009efb 19 // function 20khz_task
robt 0:9ba494009efb 20 void s20khz_task(void){
robt 0:9ba494009efb 21 data_in=Ain;
robt 0:9ba494009efb 22 data_out=data_in;
robt 0:9ba494009efb 23 Aout=data_out;
robt 0:9ba494009efb 24 }
robt 0:9ba494009efb 25