Diff: OT07Lib/OT07_lib.h

Revision:

3:85fc843a9d7d

Child:

5:9e751733a6f3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OT07Lib/OT07_lib.h	Mon Oct 12 21:55:22 2020 +0000
@@ -0,0 +1,82 @@
+#include "mbed.h"
+
+//OT07 Registers
+#define OT07_STATUS         0x00    // OT07 status regiter
+#define OT07_INT_EN         0x01    // OT07 Interrupt Enable
+#define OT07_FIFO_W         0x04    // OT07 FIFO Write Pointer
+#define OT07_FIFO_R         0x05    // OT07 FIFO Read Pointer
+#define OT07_FIFO_OF        0x06    // OT07 FIFO Overflow Counter
+#define OT07_FIFO_COUNT     0x07    // OT07 FIFO Data Count
+#define OT07_FIFO_DATA      0x08    // OT07 FIFO Data
+#define OT07_FIFO_CNFG1     0x09    // OT07 FIFO Configuration 1 (FIFO_A_FULL)
+#define OT07_FIFO_CNFG2     0x0A    // OT07 FIFO Configuration 2
+#define OT07_SYS            0x0C    // OT07 System Configuration
+#define OT07_ALARM_HIGH_MSB 0x10    // OT07 Alarm High MSB
+#define OT07_ALARM_HIGH_LSB 0x11    // OT07 Alarm High LSB
+#define OT07_ALARM_LOW_MSB  0x12    // OT07 Alarm Low MSB
+#define OT07_ALARM_LOW_LSB  0x13    // OT07 Alarm LOW LSB
+#define OT07_ADC_SETUP      0x14    // OT07 Temp Seneor Setup (ADC_RES[7:6]) & Convert Temperature [0]
+#define OT07_GPIO_SETUP     0x20    // OT07 GPIO Setup,  sets GPIO modes
+#define OT07_GPIO_CTRL      0x21    // OT07 GPIO control
+#define OT07_ROM_ID         0x31    // OT07 ROM_ID address of LSB?
+
+#define DEVICE_ACK      0
+#define DEVICE_NACK     1
+#define DEVICE_BAD_RESP 2
+
+#define MAX_DEVICES 64      // Maximum number of rom devices allowed
+#define ID_LENGTH   6       // Rom ID length in bytes
+
+struct OT07_struct {
+    char rom_id[ID_LENGTH];     // device ROM ID
+    char I2C_address;           // I2C addess, based on GPIO0 and GPIO1 at power up
+                                // Why char?
+}; 
+
+struct TempResponse {
+    double tempC;     // Temperature in °C 
+    int status;       // Status of Temperature read. 0 for success, 1 for error
+};
+
+// *****************************************************************************
+//   OT07_write_register(char, char, char)  writes single byte to OT07
+//                       char   I2C address
+//                       char   OT07 register address
+//                       char   data byte to be writen
+//   returns                    0 on success ACK, 1 on NACK 
+// *****************************************************************************
+int OT07_write_register(I2C *i2c, char I2C_add, char reg_add, char byte);
+
+/// ****************************************************************************
+//   OT07_write_register(char, char, char *, int)  writes multiple bytes to OT07
+//                       char   I2C address
+//                       char   OT07 register address
+//                       char * data vector of bytes to be written
+//                       int    number of bytes to write
+//   returns                    0 on success ACK, 1 on NACK 
+// *****************************************************************************
+int OT07_write_register(I2C *i2c, char I2C_add, char reg_add, char *bytes, int n);
+
+// *****************************************************************************
+//   OT07_read_register(char, char, char *, int)  writes single byte to OT07
+//                       char   I2C address
+//                       char   OT07 register address
+//                       char * data vector for read bytes to be stored in 
+//                       int    number of bytes to read
+//   returns                    0 on success, 1 on fail 
+// *****************************************************************************
+int OT07_read_register(I2C *i2c, char I2C_add, char reg_add, char *bytes, int n);
+
+// *****************************************************************************
+// convert_temperature(char)    sends convert command to OT07 device
+//                     char     I2C address
+// *****************************************************************************
+void convert_temperature(I2C *i2c, char I2C_add);
+
+//******************************************************************************
+// get_temperature(char)    read temperature from OT07 device FIFO register
+//                 char     I2C address
+// returns                  TempResponse tempC = temperature in oC 
+//                          status = register read result
+//******************************************************************************
+TempResponse get_temperature(I2C *i2c, char I2C_add);
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