Siva ram / Mbed 2 deprecated SPI_DAC_EPS_1

Nikunj and Harsha code

Dependencies:   mbed

Fork of SPI_DAC_EPS by Siva ram

main.cpp@0:b121e4eadb42, 2015-07-06 (annotated)

Committer:
Piasiv1206
Date:
Mon Jul 06 12:45:23 2015 +0000
Revision:
0:b121e4eadb42
PYLD EPS working

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Piasiv1206 0:b121e4eadb42 1 #include "mbed.h"
Piasiv1206 0:b121e4eadb42 2
Piasiv1206 0:b121e4eadb42 3 SPI spi(PTA16, PTA17, PTA15); // mosi, miso, sclk
Piasiv1206 0:b121e4eadb42 4 DigitalOut cs(PTD2);
Piasiv1206 0:b121e4eadb42 5 Serial pc(USBTX, USBRX);
Piasiv1206 0:b121e4eadb42 6 uint16_t input = 24576;
Piasiv1206 0:b121e4eadb42 7 uint16_t Num = 15 ;
Piasiv1206 0:b121e4eadb42 8 uint8_t K , F , i ,input2 = 0;
Piasiv1206 0:b121e4eadb42 9
Piasiv1206 0:b121e4eadb42 10 int main() {
Piasiv1206 0:b121e4eadb42 11 // Chip must be deselected
Piasiv1206 0:b121e4eadb42 12 cs = 1;
Piasiv1206 0:b121e4eadb42 13
Piasiv1206 0:b121e4eadb42 14 // Setup the spi for 8 bit data, high steady state clock,
Piasiv1206 0:b121e4eadb42 15 // second edge capture, with a 1MHz clock rate
Piasiv1206 0:b121e4eadb42 16 spi.format(8,0); // mode not decided
Piasiv1206 0:b121e4eadb42 17 spi.frequency(1000000);
Piasiv1206 0:b121e4eadb42 18
Piasiv1206 0:b121e4eadb42 19 cs = 0;
Piasiv1206 0:b121e4eadb42 20 spi.write(input);
Piasiv1206 0:b121e4eadb42 21 spi.write(input2);
Piasiv1206 0:b121e4eadb42 22 cs = 1;
Piasiv1206 0:b121e4eadb42 23
Piasiv1206 0:b121e4eadb42 24
Piasiv1206 0:b121e4eadb42 25
Piasiv1206 0:b121e4eadb42 26 for ( i = 0 ; i<= 15; i++ )
Piasiv1206 0:b121e4eadb42 27
Piasiv1206 0:b121e4eadb42 28 {
Piasiv1206 0:b121e4eadb42 29
Piasiv1206 0:b121e4eadb42 30 cs = 0; // Select the device by seting chip select low
Piasiv1206 0:b121e4eadb42 31
Piasiv1206 0:b121e4eadb42 32 spi.write(0x3F) ; // power up int ref and select all dacs 0b01101111
Piasiv1206 0:b121e4eadb42 33
Piasiv1206 0:b121e4eadb42 34 K = Num >> 8 ;
Piasiv1206 0:b121e4eadb42 35 spi.write ( K );
Piasiv1206 0:b121e4eadb42 36 F = Num - ( K << 8 ) ;
Piasiv1206 0:b121e4eadb42 37 spi.write ( F) ;
Piasiv1206 0:b121e4eadb42 38 Num = Num + 2400 ;
Piasiv1206 0:b121e4eadb42 39
Piasiv1206 0:b121e4eadb42 40 cs = 1;
Piasiv1206 0:b121e4eadb42 41
Piasiv1206 0:b121e4eadb42 42 wait (1) ;
Piasiv1206 0:b121e4eadb42 43 pc.printf ("%d %d %d \n " , Num, F, K );
Piasiv1206 0:b121e4eadb42 44 pc.printf( "\n\r");
Piasiv1206 0:b121e4eadb42 45
Piasiv1206 0:b121e4eadb42 46 }
Piasiv1206 0:b121e4eadb42 47
Piasiv1206 0:b121e4eadb42 48
Piasiv1206 0:b121e4eadb42 49
Piasiv1206 0:b121e4eadb42 50 }