jim hamblen
A wave player demo setup for the mbed application board. Reads a wave file from a USB flash drive, and outputs to the onboard speaker (very low volume) and the analog audio out jack that can be connected to a set of PC speakers for more volume. A wave file for the demo is available at http://mbed.org/media/uploads/4180_1/sample.wav. Copy it to the USB drive. See http://mbed.org/users/4180_1/notebook/application-board-waveplayer-demo/ for more details and instructions.
Dependencies: USBHost mbed wave_player_appbd
Fork of
USBHostMSD_HelloWorld
by 
Samuel Mokrani
Diff: main.cpp
- Revision:
- 1:473f339c54c1
- Parent:
- 0:0d68fe822228
- Child:
- 2:3e3df7a79050
--- a/main.cpp Wed Mar 06 17:06:56 2013 +0000
+++ b/main.cpp Tue Mar 12 17:30:04 2013 +0000
@@ -10,23 +10,30 @@
while(1) {
- // try to connect a USB flash disk
- while(!msd.connect())
+ // try to connect a MSD device
+ while(!msd.connect()) {
+ Thread::wait(500);
+ }
+
+ while(1) {
+
+ FILE * fp = fopen("/usb/test1.txt", "a");
+
+ if (fp != NULL) {
+ fprintf(fp, "Hello fun SD Card World: %d!\r\n", i++);
+ printf("Goodbye World!\r\n");
+ fclose(fp);
+ } else {
+ printf("FILE == NULL\r\n");
+ }
+
Thread::wait(500);
- FILE * fp = fopen("/usb/test.txt", "a");
-
- if (fp != NULL) {
- fprintf(fp, "Hello fun SD Card World: %d!\r\n", i++);
- printf("Goodbye World!\r\n");
- fclose(fp);
- } else {
- printf("FILE == NULL\r\n");
+ // if device disconnected, try to connect again
+ if (!msd.connected())
+ break;
}
-
- // wait until the msd disk is disconnected
- while(msd.connected())
- Thread::wait(500);
+
}
}