haopeng tang / Mbed 2 deprecated Nucleo_STM32_401RE

hello world

Dependencies:   mbed

Files at this revision

API Documentation at this revision

Revision 1:b97739800353, committed 2016-11-10

Comitter:
zef
Date:
Thu Nov 10 09:02:08 2016 +0000
Parent:
0:b43404785506
Commit message:
add usb serial

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/main.cpp	Thu Nov 10 08:18:55 2016 +0000
+++ b/main.cpp	Thu Nov 10 09:02:08 2016 +0000
@@ -4,17 +4,21 @@
 
 DigitalOut myled(LED1);
 DigitalIn myBt(USER_BUTTON);
+Serial pc(USBTX,USBRX);
 int main() {
     
     //mypwm.period_ms(10);
     //mypwm.pulsewidth_ms(1);
   
     //printf("pwm set to %.2f %%\n", mypwm.read() * 100);
-    printf("hello world!");
+    pc.baud(115200);
+    printf("hello world!");//why is cant't printf????
+    pc.printf("PChello world!\n");
     while(1) {
         if(myBt.read()==0)
         {
              myled = !myled;
+             printf("hello world,system had passed%dms\n",(int)us_ticker_read());
         }
         //myled = !myled;
         wait(0.1);