Switch back to C based timeout ISR in the AVRISP project - assembly version was failing, and only one or two cycles could be shaved off the compiler generated code.
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<Project name="LUFA"><Folder name="Demos"><Folder name="Device"><Folder name="ClassDriver"><Folder name="AudioInput"><File path="Demos\Device\ClassDriver\AudioInput\AudioInput.c"></File><File path="Demos\Device\ClassDriver\AudioInput\AudioInput.h"></File><File path="Demos\Device\ClassDriver\AudioInput\AudioInput.txt"></File><File path="Demos\Device\ClassDriver\AudioInput\Descriptors.c"></File><File path="Demos\Device\ClassDriver\AudioInput\Descriptors.h"></File><File path="Demos\Device\ClassDriver\AudioInput\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\AudioInput\makefile"></File></Folder><Folder name="AudioOutput"><File path="Demos\Device\ClassDriver\AudioOutput\AudioOutput.c"></File><File path="Demos\Device\ClassDriver\AudioOutput\AudioOutput.h"></File><File path="Demos\Device\ClassDriver\AudioOutput\AudioOutput.txt"></File><File path="Demos\Device\ClassDriver\AudioOutput\Descriptors.c"></File><File path="Demos\Device\ClassDriver\AudioOutput\Descriptors.h"></File><File path="Demos\Device\ClassDriver\AudioOutput\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\AudioOutput\makefile"></File></Folder><Folder name="DualVirtualSerial"><File path="Demos\Device\ClassDriver\DualVirtualSerial\Descriptors.c"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\Descriptors.h"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\DualVirtualSerial.c"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\DualVirtualSerial.h"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\DualVirtualSerial.txt"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\LUFA DualVirtualSerial.inf"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\makefile"></File></Folder><Folder name="GenericHID"><File path="Demos\Device\ClassDriver\GenericHID\Descriptors.c"></File><File path="Demos\Device\ClassDriver\GenericHID\Descriptors.h"></File><File path="Demos\Device\ClassDriver\GenericHID\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\GenericHID\GenericHID.c"></File><File path="Demos\Device\ClassDriver\GenericHID\GenericHID.h"></File><File path="Demos\Device\ClassDriver\GenericHID\GenericHID.txt"></File><File path="Demos\Device\ClassDriver\GenericHID\makefile"></File></Folder><Folder name="Joystick"><File path="Demos\Device\ClassDriver\Joystick\Descriptors.c"></File><File path="Demos\Device\ClassDriver\Joystick\Descriptors.h"></File><File path="Demos\Device\ClassDriver\Joystick\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\Joystick\Joystick.c"></File><File path="Demos\Device\ClassDriver\Joystick\Joystick.h"></File><File path="Demos\Device\ClassDriver\Joystick\Joystick.txt"></File><File path="Demos\Device\ClassDriver\Joystick\makefile"></File></Folder><Folder name="Keyboard"><File path="Demos\Device\ClassDriver\Keyboard\Descriptors.c"></File><File path="Demos\Device\ClassDriver\Keyboard\Descriptors.h"></File><File path="Demos\Device\ClassDriver\Keyboard\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\Keyboard\Keyboard.c"></File><File path="Demos\Device\ClassDriver\Keyboard\Keyboard.h"></File><File path="Demos\Device\ClassDriver\Keyboard\Keyboard.txt"></File><File path="Demos\Device\ClassDriver\Keyboard\makefile"></File></Folder><Folder name="KeyboardMouse"><File path="Demos\Device\ClassDriver\KeyboardMouse\Descriptors.c"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\Descriptors.h"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\KeyboardMouse.c"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\KeyboardMouse.h"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\KeyboardMouse.txt"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\makefile"></File></Folder><Folder name="MassStorage"><Folder name="Lib"><File path="Demos\Device\ClassDriver\MassStorage\Lib\DataflashManager.c"></File><File path="Demos\Device\ClassDriver\MassStorage\Lib\DataflashManager.h"></File><File path="Demos\Device\ClassDriver\MassStorage\Lib\SCSI.c"></File><File path="Demos\Device\ClassDriver\MassStorage\Lib\SCSI.h"></File></Folder><File path="Demos\Device\ClassDriver\MassStorage\Descriptors.c"></File><File path="Demos\Device\ClassDriver\MassStorage\Descriptors.h"></File><File path="Demos\Device\ClassDriver\MassStorage\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\MassStorage\makefile"></File><File path="Demos\Device\ClassDriver\MassStorage\MassStorage.c"></File><File path="Demos\Device\ClassDriver\MassStorage\MassStorage.h"></File><File path="Demos\Device\ClassDriver\MassStorage\MassStorage.txt"></File></Folder><Folder name="MassStorageKeyboard"><Folder name="Lib"><File path="Demos\Device\ClassDriver\MassStorageKeyboard\Lib\DataflashManager.c"></File><File path="Demos\Device\ClassDriver\MassStorageKeyboard\Lib\DataflashManager.h"></File><File path="Demos\Device\ClassDrLine truncated
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<Project name="LUFA"><Folder name="Demos"><Folder name="Device"><Folder name="ClassDriver"><Folder name="AudioInput"><File path="Demos\Device\ClassDriver\AudioInput\AudioInput.c"></File><File path="Demos\Device\ClassDriver\AudioInput\AudioInput.h"></File><File path="Demos\Device\ClassDriver\AudioInput\AudioInput.txt"></File><File path="Demos\Device\ClassDriver\AudioInput\Descriptors.c"></File><File path="Demos\Device\ClassDriver\AudioInput\Descriptors.h"></File><File path="Demos\Device\ClassDriver\AudioInput\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\AudioInput\makefile"></File></Folder><Folder name="AudioOutput"><File path="Demos\Device\ClassDriver\AudioOutput\AudioOutput.c"></File><File path="Demos\Device\ClassDriver\AudioOutput\AudioOutput.h"></File><File path="Demos\Device\ClassDriver\AudioOutput\AudioOutput.txt"></File><File path="Demos\Device\ClassDriver\AudioOutput\Descriptors.c"></File><File path="Demos\Device\ClassDriver\AudioOutput\Descriptors.h"></File><File path="Demos\Device\ClassDriver\AudioOutput\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\AudioOutput\makefile"></File></Folder><Folder name="DualVirtualSerial"><File path="Demos\Device\ClassDriver\DualVirtualSerial\Descriptors.c"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\Descriptors.h"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\DualVirtualSerial.c"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\DualVirtualSerial.h"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\DualVirtualSerial.txt"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\LUFA DualVirtualSerial.inf"></File><File path="Demos\Device\ClassDriver\DualVirtualSerial\makefile"></File></Folder><Folder name="GenericHID"><File path="Demos\Device\ClassDriver\GenericHID\Descriptors.c"></File><File path="Demos\Device\ClassDriver\GenericHID\Descriptors.h"></File><File path="Demos\Device\ClassDriver\GenericHID\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\GenericHID\GenericHID.c"></File><File path="Demos\Device\ClassDriver\GenericHID\GenericHID.h"></File><File path="Demos\Device\ClassDriver\GenericHID\GenericHID.txt"></File><File path="Demos\Device\ClassDriver\GenericHID\makefile"></File></Folder><Folder name="Joystick"><File path="Demos\Device\ClassDriver\Joystick\Descriptors.c"></File><File path="Demos\Device\ClassDriver\Joystick\Descriptors.h"></File><File path="Demos\Device\ClassDriver\Joystick\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\Joystick\Joystick.c"></File><File path="Demos\Device\ClassDriver\Joystick\Joystick.h"></File><File path="Demos\Device\ClassDriver\Joystick\Joystick.txt"></File><File path="Demos\Device\ClassDriver\Joystick\makefile"></File></Folder><Folder name="Keyboard"><File path="Demos\Device\ClassDriver\Keyboard\Descriptors.c"></File><File path="Demos\Device\ClassDriver\Keyboard\Descriptors.h"></File><File path="Demos\Device\ClassDriver\Keyboard\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\Keyboard\Keyboard.c"></File><File path="Demos\Device\ClassDriver\Keyboard\Keyboard.h"></File><File path="Demos\Device\ClassDriver\Keyboard\Keyboard.txt"></File><File path="Demos\Device\ClassDriver\Keyboard\makefile"></File></Folder><Folder name="KeyboardMouse"><File path="Demos\Device\ClassDriver\KeyboardMouse\Descriptors.c"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\Descriptors.h"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\KeyboardMouse.c"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\KeyboardMouse.h"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\KeyboardMouse.txt"></File><File path="Demos\Device\ClassDriver\KeyboardMouse\makefile"></File></Folder><Folder name="MassStorage"><Folder name="Lib"><File path="Demos\Device\ClassDriver\MassStorage\Lib\DataflashManager.c"></File><File path="Demos\Device\ClassDriver\MassStorage\Lib\DataflashManager.h"></File><File path="Demos\Device\ClassDriver\MassStorage\Lib\SCSI.c"></File><File path="Demos\Device\ClassDriver\MassStorage\Lib\SCSI.h"></File></Folder><File path="Demos\Device\ClassDriver\MassStorage\Descriptors.c"></File><File path="Demos\Device\ClassDriver\MassStorage\Descriptors.h"></File><File path="Demos\Device\ClassDriver\MassStorage\Doxygen.conf"></File><File path="Demos\Device\ClassDriver\MassStorage\makefile"></File><File path="Demos\Device\ClassDriver\MassStorage\MassStorage.c"></File><File path="Demos\Device\ClassDriver\MassStorage\MassStorage.h"></File><File path="Demos\Device\ClassDriver\MassStorage\MassStorage.txt"></File></Folder><Folder name="MassStorageKeyboard"><Folder name="Lib"><File path="Demos\Device\ClassDriver\MassStorageKeyboard\Lib\DataflashManager.c"></File><File path="Demos\Device\ClassDriver\MassStorageKeyboard\Lib\DataflashManager.h"></File><File path="Demos\Device\ClassDrLine truncated
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@@ -1,23 +0,0 @@
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#include <avr/io.h>
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#include "V2Protocol.h"
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.global TIMER0_COMPA_vect
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TIMER0_COMPA_vect:
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sei
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push r24
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in r24, 0x3f
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push r24
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in r24, TimeoutMSRemaining
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and r24, r24
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breq Epilogue
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subi r24, 0x01
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out TimeoutMSRemaining, r24
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Epilogue:
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pop r24
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out 0x3f, r24
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pop r24
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reti
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@@ -43,6 +43,12 @@ uint32_t CurrentAddress;
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bool MustSetAddress;
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ISR(TIMER0_COMPA_vect, ISR_NOBLOCK)
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{
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if (TimeoutMSRemaining)
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TimeoutMSRemaining--;
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}
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/** Initializes the hardware and software associated with the V2 protocol command handling. */
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void V2Protocol_Init(void)
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{
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@@ -165,6 +165,10 @@ void XPROGTarget_EnableTargetPDI(void)
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BITBANG_PDIDATA_DDR |= BITBANG_PDIDATA_MASK;
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BITBANG_PDICLOCK_DDR |= BITBANG_PDICLOCK_MASK;
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/* Set DATA line low for at least 90ns to ensure that the device is ready for PDI mode to be entered */
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BITBANG_PDIDATA_PORT &= ~BITBANG_PDIDATA_MASK;
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_delay_us(1);
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/* Set DATA line high for at least 90ns to disable /RESET functionality */
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BITBANG_PDIDATA_PORT |= BITBANG_PDIDATA_MASK;
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_delay_us(1);
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@@ -314,6 +318,9 @@ void XPROGTarget_SendByte(const uint8_t Byte)
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SoftUSART_Data = NewUSARTData;
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SoftUSART_BitCount = BITS_IN_USART_FRAME;
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#endif
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if (TimeoutMSRemaining)
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TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
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}
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/** Receives a byte via the software USART, blocking until data is received.
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@@ -369,6 +376,9 @@ void XPROGTarget_SendBreak(void)
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SoftUSART_Data = 0x0FFF;
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SoftUSART_BitCount = BITS_IN_USART_FRAME;
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#endif
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if (TimeoutMSRemaining)
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TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
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}
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static void XPROGTarget_SetTxMode(void)
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@@ -405,6 +415,9 @@ static void XPROGTarget_SetTxMode(void)
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}
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#endif
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if (TimeoutMSRemaining)
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TimeoutMSRemaining = COMMAND_TIMEOUT_MS;
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IsSending = true;
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}
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@@ -66,7 +66,7 @@ MCU = at90usb1287
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# Target board (see library "Board Types" documentation, NONE for projects not requiring
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# LUFA board drivers). If USER is selected, put custom board drivers in a directory called
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# "Board" inside the application directory.
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BOARD = USBKEY
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BOARD = XPLAIN
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# Processor frequency.
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@@ -157,7 +157,7 @@ CPPSRC =
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# Even though the DOS/Win* filesystem matches both .s and .S the same,
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# it will preserve the spelling of the filenames, and gcc itself does
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# care about how the name is spelled on its command-line.
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ASRC = Lib/Timeout.S
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ASRC =
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# Optimization level, can be [0, 1, 2, 3, s].
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