From c1be3073939c71d17c92fcbce4e1690d0a1443f0 Mon Sep 17 00:00:00 2001 From: Dean Camera Date: Tue, 28 Jul 2009 13:01:44 +0000 Subject: Added HOST_STATE_AS_GPIOR1 and DEVICE_STATE_AS_GPIOR0 compile time options, the latter of which is used in the bootloaders, to reduce code size. --- LUFA/ManPages/ChangeLog.txt | 1 + LUFA/ManPages/CompileTimeTokens.txt | 12 ++++++++++++ 2 files changed, 13 insertions(+) (limited to 'LUFA/ManPages') diff --git a/LUFA/ManPages/ChangeLog.txt b/LUFA/ManPages/ChangeLog.txt index ff34ff2ed..b8ba3b2ce 100644 --- a/LUFA/ManPages/ChangeLog.txt +++ b/LUFA/ManPages/ChangeLog.txt @@ -34,6 +34,7 @@ * - Added new Benito Arduino Programmer project * - Added new LEDs_ToggleLEDs() function to the LEDs driver * - Added new Pipe_BoundEndpointNumber() and Pipe_IsEndpointBound() functions + * - Added new DEVICE_STATE_AS_GPIOR0 and DEVICE_STATE_AS_GPIOR1 compile time options * * Changed: * - Deprecated psuedo-scheduler and removed dynamic memory allocator from the library (first no longer needed and second unused) diff --git a/LUFA/ManPages/CompileTimeTokens.txt b/LUFA/ManPages/CompileTimeTokens.txt index f11dff2e1..130a2e8fb 100644 --- a/LUFA/ManPages/CompileTimeTokens.txt +++ b/LUFA/ManPages/CompileTimeTokens.txt @@ -95,6 +95,18 @@ * defined to a non-zero value instead to give the size in bytes of the control endpoint, to reduce the size of the compiled * binary. * + * DEVICE_STATE_AS_GPIOR0 - ( \ref Group_Device ) \n + * One of the most frequenty used global variables in the stack is the USB_DeviceState global, which indicates the current state of + * the Device State Machine. To reduce the amount of code and time required to access and modify this global in an application, this token + * make be defined to fix the state variable into one of the three general purpose IO registers inside the AVR reserved for application + * use. When defined, the GPIOR0 register should not be used within the user application except implicitly via the library APIs. + * + * HOST_STATE_AS_GPIOR1 - ( \ref Group_Host ) \n + * One of the most frequenty used global variables in the stack is the USB_HostState global, which indicates the current state of + * the Host State Machine. To reduce the amount of code and time required to access and modify this global in an application, this token + * make be defined to fix the state variable into one of the three general purpose IO registers inside the AVR reserved for application + * use. When defined, the GPIOR1 register should not be used within the user application except implicitly via the library APIs. + * * TOTAL_NUM_CONFIGURATIONS - ( \ref Group_Device ) \n * By default, the library determines the number of configurations a USB device supports by reading the device descriptor. This reduces * the amount of configuration required to set up the library, and allows the value to change dynamically (if descriptors are stored in -- cgit v1.2.3