Contiki 2.6
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Compiler and Platform specific definitions and typedefs common to all platforms. More...
Generic Types | |
#define | TRUE 1 |
An alias for one, used for clarity. | |
#define | FALSE 0 |
An alias for zero, used for clarity. | |
#define | NULL ((void *)0) |
The null pointer. | |
Bit Manipulation Macros | |
#define | BIT(x) (1U << (x)) |
Useful to reference a single bit of a byte. | |
#define | BIT32(x) (((int32u) 1) << (x)) |
Useful to reference a single bit of an int32u type. | |
#define | SETBIT(reg, bit) reg |= BIT(bit) |
Sets bit in the reg register or byte. | |
#define | SETBITS(reg, bits) reg |= (bits) |
Sets the bits in the reg register or the byte as specified in the bitmask bits . | |
#define | CLEARBIT(reg, bit) reg &= ~(BIT(bit)) |
Clears a bit in the reg register or byte. | |
#define | CLEARBITS(reg, bits) reg &= ~(bits) |
Clears the bits in the reg register or byte as specified in the bitmask bits . | |
#define | READBIT(reg, bit) (reg & (BIT(bit))) |
Returns the value of bit within the register or byte reg . | |
#define | READBITS(reg, bits) (reg & (bits)) |
Returns the value of the bitmask bits within the register or byte reg . | |
Byte Manipulation Macros | |
#define | LOW_BYTE(n) ((int8u)((n) & 0xFF)) |
Returns the low byte of the 16-bit value n as an int8u . | |
#define | HIGH_BYTE(n) ((int8u)(LOW_BYTE((n) >> 8))) |
Returns the high byte of the 16-bit value n as an int8u . | |
#define | HIGH_LOW_TO_INT(high, low) |
Returns the value built from the two int8u values high and low . | |
#define | BYTE_0(n) ((int8u)((n) & 0xFF)) |
Returns the low byte of the 32-bit value n as an int8u . | |
#define | BYTE_1(n) ((int8u)(BYTE_0((n) >> 8))) |
Returns the second byte of the 32-bit value n as an int8u . | |
#define | BYTE_2(n) ((int8u)(BYTE_0((n) >> 16))) |
Returns the third byte of the 32-bit value n as an int8u . | |
#define | BYTE_3(n) ((int8u)(BYTE_0((n) >> 24))) |
Returns the high byte of the 32-bit value n as an int8u . | |
Time Manipulation Macros | |
#define | elapsedTimeInt8u(oldTime, newTime) ((int8u) ((int8u)(newTime) - (int8u)(oldTime))) |
Returns the elapsed time between two 8 bit values. | |
#define | elapsedTimeInt16u(oldTime, newTime) ((int16u) ((int16u)(newTime) - (int16u)(oldTime))) |
Returns the elapsed time between two 16 bit values. | |
#define | elapsedTimeInt32u(oldTime, newTime) ((int32u) ((int32u)(newTime) - (int32u)(oldTime))) |
Returns the elapsed time between two 32 bit values. | |
#define | MAX_INT8U_VALUE 0xFF |
Returns TRUE if t1 is greater than t2. | |
#define | timeGTorEqualInt8u(t1, t2) (elapsedTimeInt8u(t2, t1) <= ((MAX_INT8U_VALUE + 1) / 2)) |
#define | MAX_INT16U_VALUE 0xFFFF |
Returns TRUE if t1 is greater than t2. | |
#define | timeGTorEqualInt16u(t1, t2) (elapsedTimeInt16u(t2, t1) <= ((MAX_INT16U_VALUE + 1) / 2)) |
#define | MAX_INT32U_VALUE 0xFFFFFFFF |
Returns TRUE if t1 is greater than t2. | |
#define | timeGTorEqualInt32u(t1, t2) (elapsedTimeInt32u(t2, t1) <= ((MAX_INT32U_VALUE + 1) / 2)) |
Compiler and Platform specific definitions and typedefs common to all platforms.
platform-common.h provides PLATFORM_HEADER defaults and common definitions. This head should never be included directly, it should only be included by the specific PLATFORM_HEADER used by your platform.
See platform-common.h for source code.
#define CLEARBIT | ( | reg, | |
bit | |||
) | reg &= ~(BIT(bit)) |
Clears a bit in the reg
register or byte.
reg
is an IO register, some platforms (such as the AVR) can implement this in a single atomic operation. Definition at line 221 of file platform-common.h.
#define CLEARBITS | ( | reg, | |
bits | |||
) | reg &= ~(bits) |
Clears the bits in the reg
register or byte as specified in the bitmask bits
.
Definition at line 228 of file platform-common.h.
#define elapsedTimeInt16u | ( | oldTime, | |
newTime | |||
) | ((int16u) ((int16u)(newTime) - (int16u)(oldTime))) |
Returns the elapsed time between two 16 bit values.
Result may not be valid if the time samples differ by more than 32767
Definition at line 309 of file platform-common.h.
#define elapsedTimeInt32u | ( | oldTime, | |
newTime | |||
) | ((int32u) ((int32u)(newTime) - (int32u)(oldTime))) |
Returns the elapsed time between two 32 bit values.
Result may not be valid if the time samples differ by more than 2147483647
Definition at line 316 of file platform-common.h.
#define elapsedTimeInt8u | ( | oldTime, | |
newTime | |||
) | ((int8u) ((int8u)(newTime) - (int8u)(oldTime))) |
Returns the elapsed time between two 8 bit values.
Result may not be valid if the time samples differ by more than 127
Definition at line 302 of file platform-common.h.
#define MAX_INT16U_VALUE 0xFFFF |
Returns TRUE if t1 is greater than t2.
Can only account for 1 wrap around of the variable before it is wrong.
Definition at line 331 of file platform-common.h.
#define MAX_INT32U_VALUE 0xFFFFFFFF |
Returns TRUE if t1 is greater than t2.
Can only account for 1 wrap around of the variable before it is wrong.
Definition at line 339 of file platform-common.h.
#define MAX_INT8U_VALUE 0xFF |
Returns TRUE if t1 is greater than t2.
Can only account for 1 wrap around of the variable before it is wrong.
Definition at line 323 of file platform-common.h.
#define SETBIT | ( | reg, | |
bit | |||
) | reg |= BIT(bit) |
Sets bit
in the reg
register or byte.
reg
is an IO register, some platforms can implement this in a single atomic operation. Definition at line 207 of file platform-common.h.
#define SETBITS | ( | reg, | |
bits | |||
) | reg |= (bits) |
Sets the bits in the reg
register or the byte as specified in the bitmask bits
.
Definition at line 214 of file platform-common.h.