Diff: epdif.cpp

Revision:

0:73f2160fef5a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/epdif.cpp	Mon May 13 09:06:23 2019 +0000
@@ -0,0 +1,97 @@
+/**
+ *  @filename   :   epdif.cpp
+ *  @brief      :   Implements EPD interface functions
+ *                  Users have to implement all the functions in epdif.cpp
+ *  @author     :   Yehui from Waveshare
+ *
+ *  Copyright (C) Waveshare     August 10 2017
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documnetation 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
+ * furished 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 OR 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 "epdif.h"
+#include "SPI.h"
+
+//DigitalOut cs_pin (D9);
+
+
+EpdIf::EpdIf():_spi(D11,D12,D13),/*_cs(D9)*/dc_pin(D5),busy_pin(D3),reset_pin(A2),_cs(D9){
+    int whoami = 20;
+    _spi.format(8,3);
+    _spi.frequency(2000000);
+    _cs = 0;
+    _spi.write(0x8F);
+    whoami = _spi.write(0x00);
+    printf( "pre print \r\n");
+    printf("WHOAMI register = 0x%X\r\n", whoami);
+    printf( "post print \r\n");
+    _cs = 1;
+};
+
+//EpdIf::EpdIf() {};
+
+EpdIf::~EpdIf(void) {
+};
+
+void EpdIf::DigitalWrite(DigitalOut &pin, int value) {
+    //digitalWrite(pin, value);
+    pin = value;
+    //pin_val value;   
+}
+
+int EpdIf::DigitalRead(PinName &pin) {
+    //return DigitalOut(pin).read();
+    //DigitalOut pin_val(pin);
+    return pin;
+}
+
+void EpdIf::DelayMs(unsigned int delaytime) {
+    //delay(delaytime);
+    
+    wait ((((float)delaytime)/100));
+}
+
+void EpdIf::SpiTransfer(unsigned char data) {
+    //DigitalOut(CS_PIN, LOW);
+    //DigitalOut cs_pin(D9);
+    _cs = 0;
+    //SPI.transfer(data);
+    //_spi.transfer (*tx_buffer , 256,*rx_buffer,256,NULL,SPI_EVENT_COMPLETE);
+    //for (int i=0; i< 256; i++)
+    //{
+    
+    int result = _spi.write(data);
+    //printf("SPI_transfer_reply %i\r\n",result);
+    
+    //}
+    
+    //DigitalOut(CS_PIN, HIGH);
+    _cs = 1;
+}
+
+int EpdIf::IfInit(void) {
+    //pinMode(CS_PIN, OUTPUT);
+    //pinMode(RST_PIN, OUTPUT);
+    //pinMode(DC_PIN, OUTPUT);
+    //pinMode(BUSY_PIN, INPUT); 
+    //_spi.beginTransaction(SPISettings(2000000, MSBFIRST, SPI_MODE0));
+    //_spi.begin();
+    return 0;
+}
+