Binary coded decimal

Library to de- and encode binary coded decimals More...

Detailed Description

Library to de- and encode binary coded decimals

Files
file	bcd.h
	BCD definitions.

Functions
static uint8_t	bcd_from_byte (uint8_t byte)
	Converts a byte to a binary coded decimal.
static uint8_t	bcd_to_byte (uint8_t bcd)
	Converts a binary coded decimal to a byte.
int	bcd_buf_from_u32 (uint32_t val, void *dst, size_t len)
	Convert a decimal value into a BCD buffer.

Function Documentation

bcd_buf_from_u32()

int bcd_buf_from_u32	(	uint32_t	val,
		void *	dst,
		size_t	len )

Convert a decimal value into a BCD buffer.

(This looks like the decimal integer value when printed as hex)

This will e.g. turn the value 123 -> 0x123 (decimal: 291)

Parameters

[in]	val	Decimal value to print
[out]	dst	Destination buffer
[in]	len	Size of the destination buffer

Returns

number of bytes written

-ENOBUFS if dst is not large enough In that case the state of dst is undefined.

bcd_from_byte()

static uint8_t bcd_from_byte ( uint8_t byte )

inlinestatic

Converts a byte to a binary coded decimal.

Parameters

[in]

byte

A byte

Returns

A binary coded decimal (4 MSB = 10s, 4 LSB = 1s)

Definition at line 37 of file bcd.h.

bcd_to_byte()

static uint8_t bcd_to_byte ( uint8_t bcd )

inlinestatic

Converts a binary coded decimal to a byte.

Parameters

[in]

bcd

A binary coded decimal (4 MSB = 10, 4 LSB = 1s)

Returns

A byte

Definition at line 50 of file bcd.h.