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Dependencies:   mbed Blynk

u8glibARM/u8g_u16toa.c@1:0e75de2a5d21, 2016-06-13 (annotated)

Committer:
lixianyu
Date:
Mon Jun 13 02:21:11 2016 +0000
Revision:
1:0e75de2a5d21
Parent:
0:d8f4c441e032 
u8glib???????????????????????????Adafruit_GFX????OLED????????bitmap??????

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lixianyu 0:d8f4c441e032 1 /*
lixianyu 0:d8f4c441e032 2
lixianyu 0:d8f4c441e032 3 u8g_u16toa.c
lixianyu 0:d8f4c441e032 4
lixianyu 0:d8f4c441e032 5
lixianyu 0:d8f4c441e032 6 Universal 8bit Graphics Library
lixianyu 0:d8f4c441e032 7
lixianyu 0:d8f4c441e032 8 Copyright (c) 2012, olikraus@gmail.com
lixianyu 0:d8f4c441e032 9 All rights reserved.
lixianyu 0:d8f4c441e032 10
lixianyu 0:d8f4c441e032 11 Redistribution and use in source and binary forms, with or without modification,
lixianyu 0:d8f4c441e032 12 are permitted provided that the following conditions are met:
lixianyu 0:d8f4c441e032 13
lixianyu 0:d8f4c441e032 14 * Redistributions of source code must retain the above copyright notice, this list
lixianyu 0:d8f4c441e032 15 of conditions and the following disclaimer.
lixianyu 0:d8f4c441e032 16
lixianyu 0:d8f4c441e032 17 * Redistributions in binary form must reproduce the above copyright notice, this
lixianyu 0:d8f4c441e032 18 list of conditions and the following disclaimer in the documentation and/or other
lixianyu 0:d8f4c441e032 19 materials provided with the distribution.
lixianyu 0:d8f4c441e032 20
lixianyu 0:d8f4c441e032 21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
lixianyu 0:d8f4c441e032 22 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
lixianyu 0:d8f4c441e032 23 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
lixianyu 0:d8f4c441e032 24 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
lixianyu 0:d8f4c441e032 25 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
lixianyu 0:d8f4c441e032 26 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
lixianyu 0:d8f4c441e032 27 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
lixianyu 0:d8f4c441e032 28 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
lixianyu 0:d8f4c441e032 29 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
lixianyu 0:d8f4c441e032 30 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
lixianyu 0:d8f4c441e032 31 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
lixianyu 0:d8f4c441e032 32 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
lixianyu 0:d8f4c441e032 33 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
lixianyu 0:d8f4c441e032 34
lixianyu 0:d8f4c441e032 35 */
lixianyu 0:d8f4c441e032 36
lixianyu 0:d8f4c441e032 37
lixianyu 0:d8f4c441e032 38 #include "u8g.h"
lixianyu 0:d8f4c441e032 39
lixianyu 0:d8f4c441e032 40 const char *u8g_u16toap(char * dest, uint16_t v)
lixianyu 0:d8f4c441e032 41 {
lixianyu 0:d8f4c441e032 42 uint8_t pos;
lixianyu 0:d8f4c441e032 43 uint8_t d;
lixianyu 0:d8f4c441e032 44 uint16_t c;
lixianyu 0:d8f4c441e032 45 c = 10000;
lixianyu 0:d8f4c441e032 46 for( pos = 0; pos < 5; pos++ )
lixianyu 0:d8f4c441e032 47 {
lixianyu 0:d8f4c441e032 48 d = '0';
lixianyu 0:d8f4c441e032 49 while( v >= c )
lixianyu 0:d8f4c441e032 50 {
lixianyu 0:d8f4c441e032 51 v -= c;
lixianyu 0:d8f4c441e032 52 d++;
lixianyu 0:d8f4c441e032 53 }
lixianyu 0:d8f4c441e032 54 dest[pos] = d;
lixianyu 0:d8f4c441e032 55 c /= 10;
lixianyu 0:d8f4c441e032 56 }
lixianyu 0:d8f4c441e032 57 dest[5] = '\0';
lixianyu 0:d8f4c441e032 58 return dest;
lixianyu 0:d8f4c441e032 59 }
lixianyu 0:d8f4c441e032 60
lixianyu 0:d8f4c441e032 61 /* v = value, d = number of digits */
lixianyu 0:d8f4c441e032 62 const char *u8g_u16toa(uint16_t v, uint8_t d)
lixianyu 0:d8f4c441e032 63 {
lixianyu 0:d8f4c441e032 64 static char buf[6];
lixianyu 0:d8f4c441e032 65 d = 5-d;
lixianyu 0:d8f4c441e032 66 return u8g_u16toap(buf, v) + d;
lixianyu 0:d8f4c441e032 67 }
lixianyu 0:d8f4c441e032 68
lixianyu 0:d8f4c441e032 69