Diff: MAX5216.cpp

Revision:

4:280d1e05f2ca

Parent:

1:bc368afe2ec8

Child:

5:bd8dbd9be2ac

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MAX5216.cpp	Sun Aug 12 10:04:09 2018 +0000
@@ -0,0 +1,88 @@
+/*******************************************************************************
+* Copyright (C) 2018 Maxim Integrated Products, Inc., All Rights Reserved.
+*
+* Permission is hereby granted, free of charge, to any person obtaining a
+* copy of this software and associated documentation files (the "Software"),
+* to deal in the Software without restriction, including without limitation
+* the rights to use, copy, modify, merge, publish, distribute, sublicense,
+* and/or sell copies of the Software, and to permit persons to whom the
+* Software is furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included
+* in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+* OTHER DEALINGS IN THE SOFTWARE.
+*
+* Except as contained in this notice, the name of Maxim Integrated
+* Products, Inc. shall not be used except as stated in the Maxim Integrated
+* Products, Inc. Branding Policy.
+*
+* The mere transfer of this software does not imply any licenses
+* of trade secrets, proprietary technology, copyrights, patents,
+* trademarks, maskwork rights, or any other form of intellectual
+* property whatsoever. Maxim Integrated Products, Inc. retains all
+* ownership rights.
+*******************************************************************************
+*/
+#include "MAX5216.h"
+
+MAX5216::MAX5216(SPI &spi, DigitalOut &pin, MAX521X_ic_t ic_variant) : m_spi(spi), m_pin(pin), m_ic_variant(ic_variant)
+{
+    m_pin = 1;
+}
+
+void MAX5216::writeCommand(setting_t setting, uint32_t value)
+{
+    
+    char val[3] = {0, 0, 0};
+    int i;
+    
+    if(value > MAX521X_IC_BIT_MASK[(uint8_t)(m_ic_variant)]) {
+        printf("value in writeCommand is too big: %X\r\n", value);
+        return;
+    }
+    m_pin = 0;
+    if (m_ic_variant == MAX5214_IC) {  // MAX5214 is 14 bits
+        value &= MAX521X_IC_BIT_MASK[(uint8_t)(m_ic_variant)];
+    } else {                           // MAX5216 is 16 bits
+        value &= MAX521X_IC_BIT_MASK[(uint8_t)(m_ic_variant)];
+        value = value << 6;  // least significant 6 bits are not used
+        val[2] = value & 0xFF;
+        value = value >> 8;
+    }
+    val[1] = value & 0xFF;
+    value = value >> 8;
+    val[0] = value;
+    val[0] |= setting;
+    //printf("mask %X, Value %X, val 0, 1, 2 %02X %02X %02X \r\n", MAX521X_IC_BIT_MASK[(uint8_t)(m_ic_variant)],value, val[0], val[1], val[2]);
+
+    for (i = 0; i < MAX521X_NUM_BYTES_SPI[(uint8_t)(m_ic_variant)]; i++) {
+        m_spi.write(val[i]);
+    }
+    m_pin = 1;
+}
+#if 0 // tbd
+void MAX5216::writeCommand(setting_t setting, pwrDwnMode_t mode)
+{
+    char val[3] = {0, 0, 0};
+    int i;
+    m_pin = 0;
+    val[0] = setting | (char)(mode);
+    for (i = 0; i < MAX521X_NUM_BYTES_SPI[(uint8_t)(m_ic_variant)]; i++) {
+        m_spi.write(val[i]);
+    }
+    m_pin = 1;
+    
+}
+#endif
+MAX5216::~MAX5216(void) 
+{
+  //empty block
+}
+