Removed new Start of Frame event from the library; performance suffered far too much and it was only useful in one of the standard classes (HID). Altered HID demos to use the previous method of tracking millisecond periods via a hardware timer rather than the SOF events.

Fixed MIDI class driver blocking on unread events to the host.

1 files changed, 11 insertions, 2 deletions

diff --git a/Projects/Magstripe/Magstripe.c b/Projects/Magstripe/Magstripe.c
index 5cd107e9a..871db28c3 100644
--- a/Projects/Magstripe/Magstripe.c
+++ b/Projects/Magstripe/Magstripe.c
@@ -39,6 +39,8 @@ USB_ClassInfo_HID_t Keyboard_HID_Interface =
 

 		.ReportINEndpointNumber  = KEYBOARD_EPNUM,

 		.ReportINEndpointSize    = KEYBOARD_EPSIZE,

+		

+		.ReportINBufferSize      = sizeof(USB_KeyboardReport_Data_t),

 	};

 

 int main(void)

@@ -70,6 +72,12 @@ void SetupHardware(void)
 	/* Hardware Initialization */

 	Magstripe_Init();

 	USB_Init();

+

+	/* Millisecond timer initialization, with output compare interrupt enabled for the idle timing */

+	OCR0A  = ((F_CPU / 64) / 1000);

+	TCCR0A = (1 << WGM01);

+	TCCR0B = ((1 << CS01) | (1 << CS00));

+	TIMSK0 = (1 << OCIE0A);

 }

 

 void ReadMagstripeData(void)

@@ -113,9 +121,10 @@ void EVENT_USB_UnhandledControlPacket(void)
 	USB_HID_ProcessControlPacket(&Keyboard_HID_Interface);

 }

 

-void EVENT_USB_StartOfFrame(void)

+ISR(TIMER0_COMPA_vect, ISR_BLOCK)

 {

-	USB_HID_RegisterStartOfFrame(&Keyboard_HID_Interface);

+	if (Keyboard_HID_Interface.IdleMSRemaining)

+	  Keyboard_HID_Interface.IdleMSRemaining--;

 }

 

 uint16_t CALLBACK_USB_HID_CreateNextHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, void* ReportData)