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How i conversion int32 to BCD?

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Jame
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How i conversion int32 to BCD?
Posted: Wed Jan 05, 2005 5:54 am

I have int32 variable and i want to convert it for display on 7-segment X 5 digit (00000-99999) How i conversion int32 to BCD? pls.

ckielstra

Joined: 18 Mar 2004
Posts: 3680
Location: The Netherlands

Posted: Wed Jan 05, 2005 6:51 am

Reply with quote

Code:

//-----------------------------------------------------------------------------
// Converts a single BCD-character to an int8.
//-----------------------------------------------------------------------------
int8 Int2Bcd(int8 val)
{
return ((val / 10) << 4) + (val % 10);
}

//-----------------------------------------------------------------------------
// Converts a single BCD-character to an int8.
//-----------------------------------------------------------------------------
int8 Bcd2Int(int8 BCD)
{
return (10 * (BCD >> 4)) + (BCD & 0x0F);
}

For an int32 you'l l have to call these functions 4 times, for example

Code:

int8 bcd, i;
int32 LargeValue;

for (i=4; i!=0; i--)
{
bcd = int2bcd( make8(LargeValue, i-1) );
putc(bcd); // Send to LCD
)

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