Diff: HX711.cpp

Revision:

1:06652a775538

Parent:

0:3a3567ddc17e

Child:

2:1af13a8a8275

diff -r 3a3567ddc17e -r 06652a775538 HX711.cpp
--- a/HX711.cpp	Mon Sep 11 09:33:47 2017 +0000
+++ b/HX711.cpp	Mon Sep 11 10:43:54 2017 +0000
@@ -0,0 +1,105 @@
+/**
+ * @brief       HX711.h
+ * @details     24-Bit Analog-to-Digital Converter (ADC) for Weigh Scales.
+ *              Function file.
+ *
+ *
+ * @return      NA
+ *
+ * @author      Manuel Caballero
+ * @date        11/September/2017
+ * @version     11/September/2017    The ORIGIN
+ * @pre         NaN.
+ * @warning     NaN
+ * @pre         This code belongs to Nimbus Centre ( http://www.nimbus.cit.ie ).
+ */
+
+#include "HX711.h"
+
+
+HX711::HX711 ( PinName PD_SCK, PinName DOUT, HX711_channel_gain_t myChannel_Gain )
+    : _PD_SCK               ( PD_SCK )
+    , _DOUT                 ( DOUT )
+    , _HX711_CHANNEL_GAIN   ( myChannel_Gain )
+{
+
+}
+
+
+HX711::~HX711()
+{
+}
+
+
+
+/**
+ * @brief       HX711_Reset   ( void )
+ *
+ * @details     It performs an internal reset.
+ *
+ * @param[in]    NaN.
+ *
+ * @param[out]   NaN.
+ *
+ *
+ * @return       Status of HX711_Reset.
+ *
+ *
+ * @author      Manuel Caballero
+ * @date        11/September/2017
+ * @version     11/September/2017   The ORIGIN
+ * @pre         When PD_SCK pin changes from low to high and stays at high for 
+ *              longer than 60μs, HX711 enters power down mode.
+ *              
+ *              When PD_SCK returns to low, chip will reset and enter normal 
+ *              operation mode.
+ * @warning     NaN.
+ */
+HX711::HX711_status_t  HX711::HX711_Reset   ( void )
+{
+    _PD_SCK  =  HX711_PIN_HIGH;
+    wait ( 0.120 );
+    _PD_SCK  =  HX711_PIN_LOW;
+
+    
+    
+    if ( _DOUT == HX711_PIN_HIGH )
+       return   HX711_SUCCESS;
+    else
+       return   HX711_FAILURE;
+}
+
+
+
+/**
+ * @brief       HX711_PowerDown   ( void )
+ *
+ * @details     It puts the device in power-down mode.
+ *
+ * @param[in]    NaN.
+ *
+ * @param[out]   NaN.
+ *
+ *
+ * @return       Status of HX711_PowerDown.
+ *
+ *
+ * @author      Manuel Caballero
+ * @date        11/September/2017
+ * @version     11/September/2017   The ORIGIN
+ * @pre         When PD_SCK pin changes from low to high and stays at high for 
+ *              longer than 60μs, HX711 enters power down mode.
+ * @warning     NaN.
+ */
+HX711::HX711_status_t  HX711::HX711_PowerDown   ( void )
+{
+    _PD_SCK  =  HX711_PIN_HIGH;
+    wait ( 0.120 );
+
+    
+    
+    if ( _DOUT == HX711_PIN_HIGH )
+       return   HX711_SUCCESS;
+    else
+       return   HX711_FAILURE;
+}
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