hidaka sato / i2cmasterNoInterrupt

i2cmaster class without interrupt process

i2cmaster.cpp@0:a7ab96dc6a35, 2017-02-26 (annotated)

Committer:
sgrsn
Date:
Sun Feb 26 07:02:27 2017 +0000
Revision:
0:a7ab96dc6a35
i2cmaster class without interrut process

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sgrsn 0:a7ab96dc6a35 1 #include "i2cmaster.h"
sgrsn 0:a7ab96dc6a35 2
sgrsn 0:a7ab96dc6a35 3 i2c::i2c(PinName sda, PinName scl) : I2C(sda, scl)
sgrsn 0:a7ab96dc6a35 4 {
sgrsn 0:a7ab96dc6a35 5 frequency(400000);
sgrsn 0:a7ab96dc6a35 6 }
sgrsn 0:a7ab96dc6a35 7
sgrsn 0:a7ab96dc6a35 8 void i2c::sendi2c(char addr, char registar, int data, int size)
sgrsn 0:a7ab96dc6a35 9 {
sgrsn 0:a7ab96dc6a35 10 if(size > 0) size = size;
sgrsn 0:a7ab96dc6a35 11 else if(data > 0xFFFFFF) size = 4;
sgrsn 0:a7ab96dc6a35 12 else if(data > 0xFFFF) size = 3;
sgrsn 0:a7ab96dc6a35 13 else if(data > 0xFF) size = 2;
sgrsn 0:a7ab96dc6a35 14 else size = 1;
sgrsn 0:a7ab96dc6a35 15 char DATA[4] = {data & 0xFF, (data>>8) & 0xFF, (data>>16) & 0xFF, (data>>24) & 0xFF};
sgrsn 0:a7ab96dc6a35 16 char i2cData[3] = {size, registar, SendData};
sgrsn 0:a7ab96dc6a35 17 write(addr, i2cData, 3);
sgrsn 0:a7ab96dc6a35 18 write(addr, DATA, size);
sgrsn 0:a7ab96dc6a35 19 }
sgrsn 0:a7ab96dc6a35 20
sgrsn 0:a7ab96dc6a35 21 int i2c::getSlaveData(char addr, char registar, int size)
sgrsn 0:a7ab96dc6a35 22 {
sgrsn 0:a7ab96dc6a35 23 char i2cData[3] = {size, registar, RequestData};
sgrsn 0:a7ab96dc6a35 24 char getData[12] = {};
sgrsn 0:a7ab96dc6a35 25 write(addr, i2cData, 3);
sgrsn 0:a7ab96dc6a35 26 read(addr, getData, size);
sgrsn 0:a7ab96dc6a35 27 return getData[0] | (getData[1] << 8) | (getData[2] << 16) | (getData[3] << 24);
sgrsn 0:a7ab96dc6a35 28 }