Bob Giesberts
Direct copy of the library, but apparently I made a change?
Fork of
SHTx
by 
Roy van Dam
Diff: i2c.hpp
- Revision:
- 1:8465801be23f
- Parent:
- 0:d55659b0c4a0
diff -r d55659b0c4a0 -r 8465801be23f i2c.hpp
--- a/i2c.hpp Thu Nov 18 10:23:43 2010 +0000
+++ b/i2c.hpp Fri Nov 19 16:24:46 2010 +0000
@@ -1,161 +1,168 @@
-/**
- * Copyright (c) 2010 Roy van Dam <roy@negative-black.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
- */
-
-#ifndef _I2C_HPP_
-#define _I2C_HPP_
-
-#include "mbed.h"
-
-namespace SHTx {
- /**
- * Class: I2C
- * Humidity and Temperature Sensor - SHT15
- * I2C Bit-bang master driver.
- */
- class I2C {
- private:
- DigitalInOut scl_pin;
- DigitalInOut sda_pin;
-
- uint32_t frequency;
-
- public:
- /**
- * Constructor: SHTx::I2C
- * Create an I2C Master interface, connected to the specified pins.
- * Bit-bang I2C driver to get around the lousy I2C implementation in the
- * SHTx interface...
- *
- * Variables:
- * sda - I2C data line pin
- * scl - I2C clock line pin
- */
- I2C(PinName sda, PinName scl);
-
- /**
- * Function: setFrequency
- * Set the frequency of the SHTx::I2C interface
- *
- * Variables:
- * hz - The bus frequency in hertz
- */
- void setFrequency(uint32_t hz);
-
- /**
- * Function: start
- * Issue start condition on the SHTx::I2C bus
- */
- void start(void);
-
- /**
- * Function: stop
- * Issue stop condition on the SHTx::I2C bus
- */
- void stop(void);
-
- /**
- * Function: wait
- * Wait for SHT15 to complete measurement.
- * Max timeout 500ms.
- *
- * Variables:
- * returns - true if an ACK was received, false otherwise
- */
- bool wait(void);
-
- /**
- * Function: write
- * Write single byte out on the SHTx::I2C bus
- *
- * Variables:
- * data - data to write out on bus
- * returns - true if an ACK was received, false otherwise
- */
- bool write(uint8_t data);
-
- /**
- * Function: write
- * Read single byte form the I2C bus
- *
- * Variables:
- * ack - indicates if the byte is to be acknowledged
- * returns - the read byte
- */
- uint8_t read(bool ack);
-
- private:
- /**
- * Function: output
- * Configures sda pin as output
- */
- void output(void);
-
- /**
- * Function: input
- * Configures sda pin as input
- */
- void input(void);
-
- /**
- * Function: sda
- * Drive sda pin.
- *
- * Variables:
- * value - drive pin high or low
- */
- void sda(bool value);
-
- /**
- * Function: scl
- * Drive scl pin.
- *
- * Variables:
- * value - drive pin high or low
- */
- void scl(bool value);
-
- /**
- * Function: shift_out
- * Write single bit out on the SHTx::I2C bus
- *
- * Variables:
- * bit - value of the bit to be written.
- */
- void shift_out(bool bit);
-
- /**
- * Function: shift_in
- * Read single bit from the SHTx::I2C bus
- *
- * Variables:
- * return - value of the bit read.
- */
- bool shift_in(void);
- };
-}
-
-/* !_I2C_HPP_ */
+/**
+ * Copyright (c) 2010 Roy van Dam <roy@negative-black.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ */
+
+#ifndef _I2C_HPP_
+#define _I2C_HPP_
+
+#include "mbed.h"
+
+namespace SHTx {
+ /**
+ * Class: I2C
+ * Humidity and Temperature Sensor - SHT15
+ * I2C Bit-bang master driver.
+ */
+ class I2C {
+ private:
+ DigitalInOut scl_pin;
+ DigitalInOut sda_pin;
+
+ uint32_t frequency;
+
+ public:
+ /**
+ * Constructor: SHTx::I2C
+ * Create an I2C Master interface, connected to the specified pins.
+ * Bit-bang I2C driver to get around the lousy I2C implementation in the
+ * SHTx interface...
+ *
+ * Variables:
+ * sda - I2C data line pin
+ * scl - I2C clock line pin
+ */
+ I2C(PinName sda, PinName scl);
+
+ /**
+ * Function: setFrequency
+ * Set the frequency of the SHTx::I2C interface
+ *
+ * Variables:
+ * hz - The bus frequency in hertz
+ */
+ void setFrequency(uint32_t hz);
+
+ /**
+ * Function: start
+ * Issue start condition on the SHTx::I2C bus
+ */
+ void start(void);
+
+ /**
+ * Function: stop
+ * Issue stop condition on the SHTx::I2C bus
+ */
+ void stop(void);
+
+ /**
+ * Function: wait
+ * Wait for SHT15 to complete measurement.
+ * Max timeout 500ms.
+ *
+ * Variables:
+ * returns - true if an ACK was received, false otherwise
+ */
+ bool wait(void);
+
+ /**
+ * Function: reset
+ * If communication with the device is lost
+ * the command will reset the serial interface
+ */
+ void reset(void);
+
+ /**
+ * Function: write
+ * Write single byte out on the SHTx::I2C bus
+ *
+ * Variables:
+ * data - data to write out on bus
+ * returns - true if an ACK was received, false otherwise
+ */
+ bool write(uint8_t data);
+
+ /**
+ * Function: write
+ * Read single byte form the I2C bus
+ *
+ * Variables:
+ * ack - indicates if the byte is to be acknowledged
+ * returns - the read byte
+ */
+ uint8_t read(bool ack);
+
+ private:
+ /**
+ * Function: output
+ * Configures sda pin as output
+ */
+ void output(void);
+
+ /**
+ * Function: input
+ * Configures sda pin as input
+ */
+ void input(void);
+
+ /**
+ * Function: sda
+ * Drive sda pin.
+ *
+ * Variables:
+ * value - drive pin high or low
+ */
+ void sda(bool value);
+
+ /**
+ * Function: scl
+ * Drive scl pin.
+ *
+ * Variables:
+ * value - drive pin high or low
+ */
+ void scl(bool value);
+
+ /**
+ * Function: shift_out
+ * Write single bit out on the SHTx::I2C bus
+ *
+ * Variables:
+ * bit - value of the bit to be written.
+ */
+ void shift_out(bool bit);
+
+ /**
+ * Function: shift_in
+ * Read single bit from the SHTx::I2C bus
+ *
+ * Variables:
+ * return - value of the bit read.
+ */
+ bool shift_in(void);
+ };
+}
+
+/* !_I2C_HPP_ */
#endif
\ No newline at end of file