Many changes from 2018

[owSlave2.git] / common / I2C / LPS225HB.c

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