forked from ssokol/esp8266
-
Notifications
You must be signed in to change notification settings - Fork 0
/
EEPROMAnything.h
57 lines (50 loc) · 1.29 KB
/
EEPROMAnything.h
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
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
#include <EEPROM.h>
#include <Arduino.h> // for type definitions
int eepromReadInt(int address) {
int value = 0x0000;
value = value | (EEPROM.read(address) << 8);
value = value | EEPROM.read(address + 1);
return value;
}
void eepromWriteInt(int address, int value) {
EEPROM.write(address, (value >> 8) & 0xFF);
EEPROM.write(address + 1, value & 0xFF);
}
float eepromReadFloat(int address) {
union u_tag {
byte b[4];
float fval;
} u;
u.b[0] = EEPROM.read(address);
u.b[1] = EEPROM.read(address + 1);
u.b[2] = EEPROM.read(address + 2);
u.b[3] = EEPROM.read(address + 3);
return u.fval;
}
void eepromWriteFloat(int address, float value) {
union u_tag {
byte b[4];
float fval;
} u;
u.fval = value;
EEPROM.write(address, u.b[0]);
EEPROM.write(address + 1, u.b[1]);
EEPROM.write(address + 2, u.b[2]);
EEPROM.write(address + 3, u.b[3]);
}
void eepromReadString(int offset, int bytes, char* buf) {
char c = 0;
for (int i = offset; i < (offset + bytes); i++) {
c = EEPROM.read(i);
buf[i - offset] = c;
if (c == 0) break;
}
}
void eepromWriteString(int offset, int bytes, char* buf) {
char c = 0;
// int len = (strlen(buf) < bytes) ? strlen(buf) : bytes;
for (int i = 0; i < bytes; i++) {
c = buf[i];
EEPROM.write(offset + i, c);
}
}