Revision 0:0d2babe81a04, committed 2014-10-12

Comitter:

yasuyuki

Date:

Sun Oct 12 02:42:32 2014 +0000

Commit message:

first release

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LPS25H.cpp	Sun Oct 12 02:42:32 2014 +0000
@@ -0,0 +1,83 @@
+//**********************
+// LPS25H.cpp for mbed
+//
+// LPS25H lps25h(P0_5,P0_4);
+// or
+// I2C i2c(P0_5,P0_4);
+// LPS25H lps25h(i2c);
+//
+// (C)Copyright 2014 All rights reserved by Y.Onodera
+// http://einstlab.web.fc2.com
+//**********************
+
+#include "mbed.h"
+#include "LPS25H.h"
+
+LPS25H::LPS25H (PinName sda, PinName scl) : _i2c(sda, scl) {
+    init();
+}
+LPS25H::LPS25H (I2C& p_i2c) : _i2c(p_i2c) {
+    init();
+}
+
+void LPS25H::put(unsigned char a, unsigned char b)
+{
+    buf[0]=a;
+    buf[1]=b;
+    _i2c.write(LPS25H_ADDR, buf, 2);
+}
+
+
+void LPS25H::get(unsigned char a)
+{
+    buf[0] = a;
+    _i2c.write(LPS25H_ADDR, buf, 1, true); // no stop, repeated
+    _i2c.read( LPS25H_ADDR, buf, 1);
+
+}
+
+long LPS25H::pressure()
+{
+
+    // XL first and H last
+    // get press_xl
+    get(LPS25H_PRESS_POUT_XL_REH);
+    press.byte.LB=buf[0];
+    // get tpress_low
+    get(LPS25H_PRESS_OUT_L);
+    press.byte.HB=buf[0];
+    // get press_high
+    get(LPS25H_PRESS_OUT_H);
+    press.byte.UB=buf[0];
+    return press.Val;
+ 
+    // hPa = press.Val / 4096
+    // Pa = press.Val / 40.96   
+}
+
+
+short LPS25H::temperature()
+{
+
+    // L first and H last
+    // get tpress_low
+    get(LPS25H_TEMP_OUT_L);
+    temp.byte.LB=buf[0];
+    // get press_high
+    get(LPS25H_TEMP_OUT_H);
+    temp.byte.HB=buf[0];
+    return temp.S;
+ 
+    // C = 42.5 + temp.S / 480
+    // range:0 to 80C
+    // accuracy:+-2C
+}
+
+
+void LPS25H::init()
+{
+    // Power ON Cycle=1Hz
+    put(LPS25H_CTRL_REG1, 0x90);
+}
+
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LPS25H.h	Sun Oct 12 02:42:32 2014 +0000
@@ -0,0 +1,62 @@
+//**********************
+// LPS25H.h for mbed
+//
+// (C)Copyright 2014 All rights reserved by Y.Onodera
+// http://einstlab.web.fc2.com
+//**********************
+
+#ifndef LPS25H_H_
+#define LPS25H_H_
+
+#define LPS25H_ADDR                 0xB8
+#define LPS25H_REF_P_XL             0x08
+#define LPS25H_REF_P_L              0x09
+#define LPS25H_REF_P_H              0x0A
+#define LPS25H_WHO_AM_I             0x0F
+#define LPS25H_RES_CONF             0x10
+#define LPS25H_CTRL_REG1            0x20
+#define LPS25H_CTRL_REG2            0x21
+#define LPS25H_CTRL_REG3            0x22
+#define LPS25H_CTRL_REG4            0x23
+#define LPS25H_INT_CFG              0x24
+#define LPS25H_INT_SOURCE           0x25
+#define LPS25H_STATUS_REG           0x27
+#define LPS25H_PRESS_POUT_XL_REH    0x28
+#define LPS25H_PRESS_OUT_L          0x29
+#define LPS25H_PRESS_OUT_H          0x2A
+#define LPS25H_TEMP_OUT_L           0x2B
+#define LPS25H_TEMP_OUT_H           0x2C
+#define LPS25H_FIFO_CTRL            0x2E
+#define LPS25H_FIFO_STATUS          0x2F
+#define LPS25H_THS_P_L              0x30
+#define LPS25H_THS_P_H              0x31
+#define LPS25H_RPDS_L               0x39
+#define LPS25H_RPDS_H               0x3A
+
+#include "mbed.h"
+#include "typedef.h"
+
+class LPS25H{
+public:
+    LPS25H (PinName sda, PinName scl);
+    LPS25H (I2C& p_i2c);
+    void init();
+
+    void put(unsigned char a, unsigned char b);
+    void get(unsigned char a);
+    long pressure();
+    short temperature();
+
+protected:
+    
+    I2C _i2c;
+
+    DWORD_VAL press;
+    WORD_VAL temp;
+    char buf[2];
+
+};
+
+#endif /* LPS25H_H_ */
+
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/typedef.h	Sun Oct 12 02:42:32 2014 +0000
@@ -0,0 +1,55 @@
+//**********************
+// typedef for mbed
+//
+// Condition:
+//
+// (C)Copyright 2014 All rights reserved by Y.Onodera
+// http://einstlab.web.fc2.com
+//**********************
+#ifndef TYPEDEF_H
+#define TYPEDEF_H
+
+typedef unsigned char       BYTE;                           /* 8-bit unsigned  */
+typedef unsigned short int  WORD;                           /* 16-bit unsigned */
+typedef unsigned int        DWORD;                          /* 32-bit unsigned */
+typedef unsigned long long  QWORD;                          /* 64-bit unsigned */
+
+
+typedef union
+{
+    WORD Val;
+    BYTE v[2];
+    short S;
+    struct
+    {
+        BYTE LB;
+        BYTE HB;
+    } byte;
+} WORD_VAL;
+
+typedef union
+{
+    DWORD Val;
+    WORD w[2];
+    BYTE v[4];
+    struct
+    {
+        WORD LW;
+        WORD HW;
+    } word;
+    struct
+    {
+        BYTE LB;
+        BYTE HB;
+        BYTE UB;
+        BYTE MB;
+    } byte;
+    struct
+    {
+        WORD_VAL low;
+        WORD_VAL high;
+    }wordUnion;
+
+} DWORD_VAL;
+
+#endif /* TYPEDEF_H */