Unverified Commit bf0e6a5e authored by Birte Kristina Friesel's avatar Birte Kristina Friesel
Browse files

lm75: overtemperature threshold and hysteresis are _signed_ 8bit ints

parent d11fc811

include/driver/lm75.h

+4 −2
Original line number Diff line number Diff line
@@ -2,6 +2,8 @@ 
 * Copyright 2020 Daniel Friesel

 *

 * SPDX-License-Identifier: BSD-2-Clause

 *

 * Driver for LM75B Digital Temperature Sensor and Thermal Watchdog.

 */

#ifndef LM75_H

#define LM75_H
@@ -19,8 +21,8 @@ class LM75 { 
		float getTemp();

		unsigned int getOS();

		unsigned int getHyst();

		void setOS(unsigned char os);

		void setHyst(unsigned char hyst);

		void setOS(signed char os);

		void setHyst(signed char hyst);

		void init();

		void shutdown();

};

src/driver/lm75.cc

+4 −2
Original line number Diff line number Diff line
@@ -2,6 +2,8 @@ 
 * Copyright 2020 Daniel Friesel

 *

 * SPDX-License-Identifier: BSD-2-Clause

 *

 * Driver for LM75B Digital Temperature Sensor and Thermal Watchdog.

 */

#include "driver/lm75.h"

#if defined(MULTIPASS_ARCH_HAS_I2C) && !defined(CONFIG_driver_softi2c)
@@ -40,7 +42,7 @@ unsigned int LM75::getHyst() 
	return rxbuf[0];

}



void LM75::setOS(unsigned char os)

void LM75::setOS(signed char os)

{

	txbuf[0] = 0x03;

	txbuf[1] = os;
@@ -48,7 +50,7 @@ void LM75::setOS(unsigned char os) 
	i2c.xmit(address, 3, txbuf, 0, rxbuf);

}



void LM75::setHyst(unsigned char hyst)

void LM75::setHyst(signed char hyst)

{

	txbuf[0] = 0x02;

	txbuf[1] = hyst;