Renesas / USBHost_AddIso

I added the Isochronous to USBHost library. The Isochronous code based on the following. http://developer.mbed.org/users/va009039/code/USBHostC270_example/

Dependencies:   FATFileSystem mbed-rtos

Fork of USBHost_AddIso by GR-PEACH_producer_meeting

Diff: USBHost/USBHALHost.h

Revision:
30:2851a9b2bbfb
Parent:
24:868cbfe611a7
--- a/USBHost/USBHALHost.h	Tue Mar 31 16:15:42 2015 +0100
+++ b/USBHost/USBHALHost.h	Wed Apr 01 05:36:16 2015 +0000
@@ -135,6 +135,9 @@
     * @returns the address of the new TD
     */
     volatile uint8_t * getTD();
+#if(1) /* Isochronous */
+    bool isTD(volatile uint8_t* td);
+#endif
 
     /**
     * Release a previous memory section reserved for an ED