From ea958d3c401761dcc24865d9639b2fab31038db8 Mon Sep 17 00:00:00 2001 From: Brijeshcr Date: Thu, 6 Jul 2017 15:48:47 +0530 Subject: Revert "LinearAlgebra Function Added" --- .../u8cmd_i2c_read_registers.cpp | 26 ++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 src/c/scilab-arduino/cmd_i2c_read_register/u8cmd_i2c_read_registers.cpp (limited to 'src/c/scilab-arduino/cmd_i2c_read_register') diff --git a/src/c/scilab-arduino/cmd_i2c_read_register/u8cmd_i2c_read_registers.cpp b/src/c/scilab-arduino/cmd_i2c_read_register/u8cmd_i2c_read_registers.cpp new file mode 100644 index 0000000..0a2ec2e --- /dev/null +++ b/src/c/scilab-arduino/cmd_i2c_read_register/u8cmd_i2c_read_registers.cpp @@ -0,0 +1,26 @@ +#include "cmd_i2c_read_register.h" +#include "Arduino.h" +#include "Wire.h" + +uint16 u8cmd_i2c_read_registers(uint8 address, uint8 reg_adrs) +{ + long int reading; + + Wire.beginTransmission(address); // transmit to device address + Wire.write(reg_adrs); // sets register pointer to reg_adrs position + Wire.endTransmission(); // stop transmitting + + // request reading from sensor + Wire.requestFrom(address, 2); // request 2 bytes from slave device with address + + // receive reading from sensor + if (2 <= Wire.available()) // if two bytes were received + { + reading = Wire.read(); // receive high byte (overwrites previous reading) + reading = reading << 8; // shift high byte to be high 8 bits + reading |= Wire.read(); // receive low byte as lower 8 bits + } + + return(reading); + +} -- cgit