PQ_Hybrid_Electrical_Equipment_Team / PQ_EEPROM

EEPROMのライブラリ

Dependents:   Hybrid_IZU2021_MAIN_OS5 Hybrid_IZU2021_POST_PROCESS Hybrid_IZU2021_MAIN

PQ_EEPROM.cpp@1:17aac6418a06, 2021-03-08 (annotated)

Committer:
tanahashi
Date:
Mon Mar 08 16:48:14 2021 +0000
Revision:
1:17aac6418a06
Parent:
0:2b9b9c1e98d9 
fixed

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tanahashi 0:2b9b9c1e98d9 1 #include "mbed.h"
tanahashi 0:2b9b9c1e98d9 2 #include "PQ_EEPROM.h"
tanahashi 0:2b9b9c1e98d9 3
tanahashi 0:2b9b9c1e98d9 4 EEPROM::EEPROM(I2C &i2c)
tanahashi 0:2b9b9c1e98d9 5 {
tanahashi 0:2b9b9c1e98d9 6 _i2c = &i2c;
tanahashi 0:2b9b9c1e98d9 7 _i2c -> frequency(400000);
tanahashi 0:2b9b9c1e98d9 8 }
tanahashi 0:2b9b9c1e98d9 9
tanahashi 0:2b9b9c1e98d9 10 void EEPROM::write(int addr, char *data, int size)
tanahashi 0:2b9b9c1e98d9 11 {
tanahashi 0:2b9b9c1e98d9 12 char B0 = (addr >> 16) & 0x01;
tanahashi 0:2b9b9c1e98d9 13 char A0 = (addr >> 17) & 0x01;
tanahashi 0:2b9b9c1e98d9 14 char A1 = (addr >> 18) & 0x01;
tanahashi 0:2b9b9c1e98d9 15 _addr = 0b10100000 | B0 << 3 | A1 << 2 | A0 << 1;
tanahashi 0:2b9b9c1e98d9 16
tanahashi 0:2b9b9c1e98d9 17 if(size > 128){
tanahashi 0:2b9b9c1e98d9 18 size = 128;
tanahashi 0:2b9b9c1e98d9 19 }
tanahashi 0:2b9b9c1e98d9 20 cmd[0] = (addr >> 8) & 0xFF;
tanahashi 0:2b9b9c1e98d9 21 cmd[1] = addr & 0xFF;
tanahashi 0:2b9b9c1e98d9 22 for(int i = 0; i < size; i++){
tanahashi 0:2b9b9c1e98d9 23 cmd[2 + i] = data[i];
tanahashi 0:2b9b9c1e98d9 24 }
tanahashi 0:2b9b9c1e98d9 25 _i2c -> write(_addr, cmd, 2 + size);
tanahashi 0:2b9b9c1e98d9 26
tanahashi 0:2b9b9c1e98d9 27 wait_ms(3);
tanahashi 0:2b9b9c1e98d9 28 }
tanahashi 0:2b9b9c1e98d9 29
tanahashi 0:2b9b9c1e98d9 30 void EEPROM::read(int addr, char *data, int size)
tanahashi 0:2b9b9c1e98d9 31 {
tanahashi 0:2b9b9c1e98d9 32 char B0 = (addr >> 16) & 0x01;
tanahashi 0:2b9b9c1e98d9 33 char A0 = (addr >> 17) & 0x01;
tanahashi 0:2b9b9c1e98d9 34 char A1 = (addr >> 18) & 0x01;
tanahashi 0:2b9b9c1e98d9 35 _addr = 0b10100000 | B0 << 3 | A1 << 2 | A0 << 1;
tanahashi 0:2b9b9c1e98d9 36
tanahashi 0:2b9b9c1e98d9 37 cmd[0] = (addr >> 8) & 0xFF;
tanahashi 0:2b9b9c1e98d9 38 cmd[1] = addr & 0xFF;
tanahashi 0:2b9b9c1e98d9 39
tanahashi 0:2b9b9c1e98d9 40 _i2c -> write(_addr, cmd, 2);
tanahashi 0:2b9b9c1e98d9 41 _i2c -> read(_addr, buff, size);
tanahashi 0:2b9b9c1e98d9 42
tanahashi 0:2b9b9c1e98d9 43 for(int i = 0; i < size; i++){
tanahashi 0:2b9b9c1e98d9 44 data[i] = buff[i];
tanahashi 0:2b9b9c1e98d9 45 }
tanahashi 0:2b9b9c1e98d9 46 }