lu sheng
/
Nucleo_PCF8574_led_iic
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Revision 0:8cb68b6fa38d, committed 2016-10-27
- Comitter:
- anywill
- Date:
- Thu Oct 27 05:06:22 2016 +0000
- Commit message:
- PCF8574
Changed in this revision
diff -r 000000000000 -r 8cb68b6fa38d PCF8574.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/PCF8574.lib Thu Oct 27 05:06:22 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/bborredon/code/PCF8574/#6d75da25c179
diff -r 000000000000 -r 8cb68b6fa38d main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu Oct 27 05:06:22 2016 +0000
@@ -0,0 +1,29 @@
+
+#include "mbed.h"
+#include "PCF8574.h"
+
+PCF8574 io(D14,D15,0x70);//iic 设置:D14 SDA,D15 SCL
+
+int main()
+{
+ while(1)
+ {
+ io.write(0x0);
+ if ((io.read()) == 16)
+ {
+ io.write(0x01);
+ }
+ else if((io.read()) == 32)
+ {
+ io.write(0x02);
+ }
+ else if((io.read()) == 64)
+ {
+ io.write(0x04);
+ }
+ else if((io.read()) == 128)
+ {
+ io.write(0x08);
+ }
+ }
+}
\ No newline at end of file
diff -r 000000000000 -r 8cb68b6fa38d mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu Oct 27 05:06:22 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/25aea2a3f4e3 \ No newline at end of file