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Diffstat (limited to 'LUFA/ManPages/CompileTimeTokens.txt')
-rw-r--r-- | LUFA/ManPages/CompileTimeTokens.txt | 12 |
1 files changed, 12 insertions, 0 deletions
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.
*
+ * <b>DEVICE_STATE_AS_GPIOR0</b> - ( \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.
+ *
+ * <b>HOST_STATE_AS_GPIOR1</b> - ( \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.
+ *
* <b>TOTAL_NUM_CONFIGURATIONS</b> - ( \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
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