Diff: MB85RSxx_SPI.cpp

Revision:

0:c31c06ec36da

Child:

1:f29f20865693

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MB85RSxx_SPI.cpp	Thu Jun 22 08:30:47 2017 +0000
@@ -0,0 +1,117 @@
+/**
+ ******************************************************************************
+ * @file    MB85RSxx_SPI.cpp
+ * @author  APS Lab
+ * @version V1.0.0
+ * @date    16 June 2017
+ * @brief   MB85RSxx_SPI class implementation
+ ******************************************************************************
+ * @attention
+ *
+ * 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 THE
+ * AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+#include "mbed.h"
+#include "MB85RSxx_SPI.h"
+
+MB85RSxx_SPI::MB85RSxx_SPI(PinName mosi, PinName miso, PinName sclk, PinName nss)
+    :
+    _spi_p(new SPI(mosi, miso, sclk)), 
+    _spi(*_spi_p),
+    _di_p(new DigitalOut(nss)),
+    _di(*_di_p)
+{
+    _spi.format(8,0);
+    _spi.frequency(10000000);
+}
+
+MB85RSxx_SPI::~MB85RSxx_SPI()
+{
+    if (NULL != _spi_p)
+        delete  _spi_p;
+}
+
+void MB85RSxx_SPI::Init(void)
+{
+    char sts;
+    _di=0;
+    _spi.write(WRDI);
+    _di=1;
+    wait(0.2);
+    _di=0;
+    _spi.write(WREN);
+    _di=1;
+    wait(0.2);
+    _di=0;
+    _spi.write(WRSR);
+    _spi.write(0x02);
+    _di=1;
+    wait(0.2);
+    _di=0;
+    _spi.write(RDSR);
+    sts=_spi.write(0x00);
+    _di=1;
+    printf("FRAM Status %x\n", sts);
+}
+
+void MB85RSxx_SPI::write(uint32_t address, char data)
+{
+    _di=0;
+    _spi.write(WREN);
+    _di=1;
+    _di=0;
+    _spi.write(WRITE);
+    _spi.write((address & 0x3F00) >> 8);//Addr H
+    _spi.write((address & 0x00FF)); //Addr L
+    _spi.write(data);  //Write Data
+    _di=1;
+}
+
+char MB85RSxx_SPI::read(uint32_t address)
+{
+    char ch;
+    _di=0;
+    _spi.write(READ);
+    _spi.write((address & 0x3F00) >> 8);//Addr H
+    _spi.write((address & 0x00FF)); //Addr L
+    ch = _spi.write(0x00);//Write dummy 0x00, Reade Data
+    _di=1;
+    return ch;
+} 
+
+
+void MB85RSxx_SPI::write(uint32_t address, char *data, uint32_t length)
+{
+    int idx;
+    for(idx=0; idx < length; idx++)
+    {
+        MB85RSxx_SPI::write(address+idx, *(data+idx));
+    }
+}
+
+uint32_t MB85RSxx_SPI::read(uint32_t address, char *data, uint32_t length)
+{
+    uint32_t error=0;
+    uint32_t idx;
+    for(idx=0; idx < length; idx++)
+    {
+        *(data+idx) = MB85RSxx_SPI::read(address+idx);
+    }
+    return error;
+} 
+