X-Git-Url: http://git.smho.de/gw/?p=owSlave2.git;a=blobdiff_plain;f=common%2FI2C%2FLPS225HB.c;fp=common%2FI2C%2FLPS225HB.c;h=eafb35cf8fc2476a9e776ccb9ca3c9c0d3d2a539;hp=0000000000000000000000000000000000000000;hb=81a79648a168a1167c5ad97d4068621c1751a353;hpb=6467d8138460abffd9ddabc7b0a9f00c764af19c

diff --git a/common/I2C/LPS225HB.c b/common/I2C/LPS225HB.c
new file mode 100644
index 0000000..eafb35c
--- /dev/null
+++ b/common/I2C/LPS225HB.c
@@ -0,0 +1,129 @@
+// Copyright (c) 2018, Tobias Mueller tm(at)tm3d.de
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//  * Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+//  * Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the
+//    distribution.
+//  * All advertising materials mentioning features or use of this
+//    software must display the following acknowledgement: This product
+//    includes software developed by tm3d.de and its contributors.
+//  * Neither the name of tm3d.de nor the names of its contributors may
+//    be used to endorse or promote products derived from this software
+//    without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+//---------- Includes ----------------------------------------------------------
+#define F_CPU 8000000UL
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <avr/wdt.h>
+#include <avr/sleep.h>
+#include "USI_TWI_Master.h"
+#include "LPS225HB.h"
+typedef enum{
+	I2C_ADR_W = 0b10111000, // sensor I2C address + write bit //ADR=VDD
+	I2C_ADR_R = 0b10111001 // sensor I2C address + read bit
+}etI2cHeader;
+
+uint8_t LPS225HB_Init() {
+	volatile uint8_t error=0;
+	/*I2c_StartCondition();
+	error |= I2c_WriteByte (I2C_ADR_W); // I2C Adr
+	error |= I2c_WriteByte (0x02); // Config
+	error |= I2c_WriteByte (0x0); // 14 bit
+	error |= I2c_WriteByte (0x0); // 
+	I2c_StopCondition();*/
+
+
+	I2c_StartCondition();
+	error |= I2c_WriteByte (I2C_ADR_W); // I2C Adr
+	error |= I2c_WriteByte (0x11); //
+	//error |= I2c_WriteByte (0b01110001); //
+	error |= I2c_WriteByte (0b00010100); //
+	I2c_StopCondition();
+	return error;
+
+}
+
+uint8_t LPS225HB_Readf(double * temperature, double * pressure) {	
+	int16_t t;
+	uint32_t p;
+	uint8_t error=0;
+	error= LPS225HB_Readi(&t,&p);
+	*temperature=(double)t/100.0;
+	*pressure=(double)p/4096.0;
+	return error;
+
+}
+uint8_t readReg(uint8_t reg) {
+	volatile uint8_t error=0;
+	uint8_t ret;
+	I2c_StartCondition();
+	error |= I2c_WriteByte (I2C_ADR_W); // I2C Adr
+	error |= I2c_WriteByte (reg); //
+	I2c_StartCondition();
+	error |= I2c_WriteByte (I2C_ADR_R); //I2C address
+	ret= I2c_ReadByte(NO_ACK);
+	I2c_StopCondition();
+	return ret;
+}
+
+uint8_t LPS225HB_Readi(int16_t * temperature, uint32_t * pressure) {
+	volatile uint8_t error=0;
+	I2c_StartCondition();
+	error |= I2c_WriteByte (I2C_ADR_W); // I2C Adr
+	error |= I2c_WriteByte (0x11); //
+	//error |= I2c_WriteByte (0b00000001); //
+	error |= I2c_WriteByte (0b01010001); //
+	I2c_StopCondition();
+	_delay_ms(1000);
+//	uint16_t status=0;
+//	status=readReg(0x27);
+//	status|=readReg(0x26)<<8;
+//	*pressure=0;
+//	*pressure|= readReg(0x28);
+//	*pressure|= ((uint32_t)readReg(0x29))<<8;
+//	*pressure|= ((uint32_t)readReg(0x2A))<<16;
+
+
+	I2c_StartCondition();
+	error |= I2c_WriteByte (I2C_ADR_W); // I2C Adr
+	error |= I2c_WriteByte (0x28); //
+	I2c_StartCondition();
+	error |= I2c_WriteByte (I2C_ADR_R); //I2C address
+//	status= I2c_ReadByte(ACK)<<8;
+//	status|= I2c_ReadByte(ACK);
+
+
+	*pressure=0;
+	*pressure|= I2c_ReadByte(ACK);
+	*pressure|= ((uint32_t)I2c_ReadByte(ACK))<<8;
+	*pressure|= ((uint32_t)I2c_ReadByte(ACK))<<16;
+	*temperature=0;
+	*temperature |= I2c_ReadByte(ACK);
+	*temperature |= ((int16_t)I2c_ReadByte(NO_ACK)<<8); 
+	I2c_StopCondition();
+	//*temperature=status;
+
+	return error;
+	}
+