1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
|
/*
Version of lcd.c handles floating point numbers in a crude manner, without using the
formatting functions of C library. Including this increases the program size a lot.
Use only if really necessary.
*/
#include "mh-lcd.c"
void lcd_put_float(float val, uint8_t ndec)
{
uint32_t ival;
uint16_t mf, dec;
uint8_t k;
if(val < 0)
{
val = -val;
lcd_put_char('-');
}
if (ndec > 3) ndec = 3; // maximum 3 decimals
mf = 1;
for(k =0; k < ndec; ++k) mf *= 10;
ival = val * mf + .5; // multiply by 10^ndec
dec = ival % mf;
ival = ival / mf;
lcd_put_long(ival);
lcd_put_char('.');
lcd_put_int(dec);
}
|
