Siva ram
/
SPI_DAC_EPS_1
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SPI_DAC_EPS
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Siva ram
Revision 0:b121e4eadb42, committed 2015-07-06
- Comitter:
- Piasiv1206
- Date:
- Mon Jul 06 12:45:23 2015 +0000
- Commit message:
- PYLD EPS working
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r b121e4eadb42 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Jul 06 12:45:23 2015 +0000
@@ -0,0 +1,50 @@
+#include "mbed.h"
+
+SPI spi(PTA16, PTA17, PTA15); // mosi, miso, sclk
+DigitalOut cs(PTD2);
+Serial pc(USBTX, USBRX);
+uint16_t input = 24576;
+uint16_t Num = 15 ;
+uint8_t K , F , i ,input2 = 0;
+
+int main() {
+ // Chip must be deselected
+ cs = 1;
+
+ // Setup the spi for 8 bit data, high steady state clock,
+ // second edge capture, with a 1MHz clock rate
+ spi.format(8,0); // mode not decided
+ spi.frequency(1000000);
+
+ cs = 0;
+ spi.write(input);
+ spi.write(input2);
+ cs = 1;
+
+
+
+ for ( i = 0 ; i<= 15; i++ )
+
+ {
+
+ cs = 0; // Select the device by seting chip select low
+
+ spi.write(0x3F) ; // power up int ref and select all dacs 0b01101111
+
+ K = Num >> 8 ;
+ spi.write ( K );
+ F = Num - ( K << 8 ) ;
+ spi.write ( F) ;
+ Num = Num + 2400 ;
+
+ cs = 1;
+
+ wait (1) ;
+ pc.printf ("%d %d %d \n " , Num, F, K );
+ pc.printf( "\n\r");
+
+}
+
+
+
+}
\ No newline at end of file
diff -r 000000000000 -r b121e4eadb42 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Jul 06 12:45:23 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/7cff1c4259d7 \ No newline at end of file