naoto tanaka
/
MotorTest_SU
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Revision 0:b2283053d9f4, committed 2014-09-16
- Comitter:
- NT32
- Date:
- Tue Sep 16 04:49:06 2014 +0000
- Commit message:
- test
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 b2283053d9f4 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Sep 16 04:49:06 2014 +0000
@@ -0,0 +1,85 @@
+#include "mbed.h"
+
+#define FREE 0x00
+#define CW 0x01
+#define CCW 0x02
+#define STOP 0x03
+
+DigitalIn sw(P0_1, PullUp);
+DigitalOut led(P1_28);
+
+SPI spi(P1_22, NC, P1_15);
+DigitalOut cs0(P0_20);
+DigitalOut cs1(P0_2);
+BusOut mtrdrv0(P1_19, P1_25);
+BusOut mtrdrv1(P1_16, P0_19);
+BusOut mtrdrv2(P0_18, P0_17);
+
+
+union MCP4922
+{
+ uint16_t command;
+ struct
+ {
+ //DAC data bits
+ uint16_t D :12;
+ //Output power down control bit
+ uint8_t SHDN:1;
+ //Outout gain select bit
+ uint8_t GA :1;
+ //Vref input buffer Control bit
+ uint8_t BUF :1;
+ //DACa or DACb select bit
+ uint8_t AB :1;
+ }bit;
+};
+
+union MCP4922 dac = {0xF7F};
+
+void systeminit();
+
+int main(){
+ systeminit();
+ mtrdrv0 = CW;
+ while(1){
+ dac.bit.D += 1;
+ if(dac.bit.D == 4095){
+ dac.bit.D = 0;
+ led = !led;
+ }
+ cs0 = 0;
+ spi.write(dac.command);
+ cs0 = 1;
+ wait(0.001);
+ }
+}
+
+void systeminit(){
+ mtrdrv0 = FREE;
+ mtrdrv1 = FREE;
+ mtrdrv2 = FREE;
+ cs0 = 1;
+ cs1 = 1;
+ dac.bit.AB = 0;
+ dac.bit.BUF = 1;
+ dac.bit.GA = 1;
+ dac.bit.SHDN = 1;
+ dac.bit.D = 0;
+ spi.format(16,0);
+ spi.frequency(20000000);
+ cs0 = 0;
+ spi.write(dac.command);
+ cs0 = 1;
+ dac.bit.AB = 1;
+ cs0 = 0;
+ spi.write(dac.command);
+ cs0 = 1;
+ dac.bit.AB = 0;
+ cs1 = 0;
+ spi.write(dac.command);
+ cs1 = 1;
+ dac.bit.AB = 1;
+ cs1 = 0;
+ spi.write(dac.command);
+ cs1 = 1;
+}
diff -r 000000000000 -r b2283053d9f4 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Sep 16 04:49:06 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/552587b429a1 \ No newline at end of file