mirror of
https://github.com/RobTillaart/Arduino.git
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297 lines
6.4 KiB
C++
297 lines
6.4 KiB
C++
//
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// FILE: mcp4725_test.ino
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.5
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// PURPOSE: test mcp4725 lib
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// DATE: 2013-11-24
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// URL: https://github.com/RobTillaart/MCP4725
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//
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#include "Wire.h"
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#include "MCP4725.h"
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MCP4725 MCP(0x62); // 0x62 or 0x63
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volatile int x;
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uint32_t start, stop;
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void setup()
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{
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Serial.begin(115200);
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Serial.print("MCP4725 test program: ");
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Serial.println(MCP4725_VERSION);
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MCP.begin();
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test1();
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test2();
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test3();
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test4();
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test5();
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test6();
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}
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void test1()
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{
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Serial.print("\nValue:\t");
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Serial.println(MCP.getValue());
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Serial.println();
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for (int i = 100; i < 500; i += 100)
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{
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Serial.print("setValue(");
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Serial.print(i);
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Serial.print(")\n");
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MCP.setValue(i);
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Serial.print("Value:\t");
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Serial.println(MCP.getValue());
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}
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Serial.println();
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}
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void test2()
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{
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Serial.println("\n\nMCP4725_II\n\n");
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for (int i = 100; i < 500; i += 100)
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{
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Serial.print("writeDAC(");
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Serial.print(i);
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Serial.print(")\n");
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MCP.writeDAC(i);
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Serial.print("MCPValue:\t");
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Serial.println(MCP.readDAC());
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Serial.print("EEValue:\t");
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Serial.println(MCP.readEEPROM());
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}
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Serial.println();
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for (int i = 100; i < 500; i += 100)
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{
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Serial.print("writeDAC(");
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Serial.print(i);
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Serial.print(", true)\n");
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MCP.writeDAC(i, true);
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Serial.print("MCPValue:\t");
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Serial.println(MCP.readDAC());
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Serial.print("EEValue:\t");
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Serial.println(MCP.readEEPROM());
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}
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Serial.println();
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Serial.println("writeDAC(200)");
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MCP.writeDAC(200);
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Serial.print("MCPValue:\t");
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Serial.println(MCP.readDAC());
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Serial.print("EEValue:\t");
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Serial.println(MCP.readEEPROM());
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Serial.println();
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}
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void test3()
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{
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Serial.println("\n\nMCP4725_POWERDOWNMODE\n\n");
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for (int i = 0; i < 4; i++)
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{
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Serial.print("MCP.writePowerDownMode(");
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Serial.print(i);
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Serial.println(")");
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MCP.writePowerDownMode(i);
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Serial.print("EPR PDM Value:\t");
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Serial.println(MCP.readPowerDownModeEEPROM());
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Serial.println();
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}
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Serial.println("\n\nEXPERIMENTAL");
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Serial.println("MCP.writePowerDownMode(3)");
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MCP.writePowerDownMode(3);
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MCP.writeDAC(305);
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Serial.print("Value:\t");
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Serial.println(MCP.getValue());
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Serial.println("MCP.powerOnReset()");
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Serial.println("Before");
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Serial.print("MCP PDM Value:\t");
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Serial.println(MCP.readPowerDownModeDAC());
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Serial.print("EPR PDM Value:\t");
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Serial.println(MCP.readPowerDownModeEEPROM());
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Serial.print("MCPValue:\t");
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Serial.println(MCP.readDAC());
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Serial.print("EEValue:\t");
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Serial.println(MCP.readEEPROM());
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MCP.powerOnReset();
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Serial.println("After");
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Serial.print("MCP PDM Value:\t");
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Serial.println(MCP.readPowerDownModeDAC());
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Serial.print("EPR PDM Value:\t");
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Serial.println(MCP.readPowerDownModeEEPROM());
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Serial.print("MCPValue:\t");
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Serial.println(MCP.readDAC());
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Serial.print("EEValue:\t");
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Serial.println(MCP.readEEPROM());
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Serial.print("Value:\t");
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Serial.println(MCP.getValue());
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Serial.println();
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}
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void test4()
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{
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Serial.println("\n\nEXPERIMENTAL");
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Serial.println("MCP.writePowerDownMode(2)");
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MCP.writePowerDownMode(2);
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MCP.writeDAC(405);
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Serial.print("Value:\t");
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Serial.println(MCP.getValue());
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Serial.println("MCP.powerOnWakeUp()");
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Serial.println("Before");
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Serial.print("MCP PDM Value:\t");
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Serial.println(MCP.readPowerDownModeDAC());
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Serial.print("EPR PDM Value:\t");
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Serial.println(MCP.readPowerDownModeEEPROM());
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Serial.print("MCPValue:\t");
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Serial.println(MCP.readDAC());
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Serial.print("EEValue:\t");
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Serial.println(MCP.readEEPROM());
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MCP.powerOnWakeUp();
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Serial.println("after");
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Serial.print("MCP PDM Value:\t");
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Serial.println(MCP.readPowerDownModeDAC());
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Serial.print("EPR PDM Value:\t");
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Serial.println(MCP.readPowerDownModeEEPROM());
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Serial.print("MCPValue:\t");
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Serial.println(MCP.readDAC());
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Serial.print("EEValue:\t");
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Serial.println(MCP.readEEPROM());
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Serial.print("Value:\t");
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Serial.println(MCP.getValue());
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Serial.println();
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}
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void test5()
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{
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Serial.println("\n\nPERFORMANCE");
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Serial.println();
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start = micros();
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for (int i = 0; i < 1000; i++)
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{
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x = MCP.getValue();
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}
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stop = micros();
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Serial.print("1000x MCP.getValue():\t\t");
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Serial.println(stop - start);
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start = micros();
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for (int i = 0; i < 1000; i++)
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{
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MCP.setValue(i);
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}
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stop = micros();
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Serial.print("1000x MCP.setValue(i):\t\t");
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Serial.println(stop - start);
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start = micros();
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for (int i = 0; i < 1000; i++)
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{
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MCP.setValue(1000);
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}
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stop = micros();
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Serial.print("1000x MCP.setValue(1000):\t");
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Serial.println(stop - start);
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start = micros();
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for (int i = 0; i < 1000; i++)
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{
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x = MCP.readDAC();
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}
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stop = micros();
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Serial.print("1000x MCP.readDAC():\t\t");
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Serial.println(stop - start);
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start = micros();
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for (int i = 0; i < 1000; i++)
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{
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x = MCP.writeDAC(i);
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}
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stop = micros();
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Serial.print("1000x MCP.writeDAC(i):\t\t");
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Serial.println(stop - start);
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start = micros();
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for (int i = 0; i < 10; i++)
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{
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x = MCP.writeDAC(i, true);
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}
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stop = micros();
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Serial.print("10x MCP.writeDAC(i, true):\t");
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Serial.println(stop - start);
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start = micros();
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for (int i = 0; i < 1000; i++)
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{
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x = MCP.ready();
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}
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stop = micros();
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Serial.print("1000x MCP.ready():\t\t");
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Serial.println(stop - start);
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while (!MCP.ready());
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MCP.writeDAC(0, true);
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start = micros();
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while (!MCP.ready());
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stop = micros();
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Serial.print("EEPROM write latency:\t\t");
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Serial.println(stop - start);
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}
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void test6()
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{
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Serial.println("\n\nEXPERIMENTAL II");
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start = micros();
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for (int i = 0; i < 10; i++)
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{
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x = MCP.readPowerDownModeDAC();
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}
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stop = micros();
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Serial.print("10x MCP.readPowerDownModeDAC():\t\t");
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Serial.println(stop - start);
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start = micros();
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for (int i = 0; i < 10; i++)
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{
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x = MCP.readPowerDownModeEEPROM();
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}
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stop = micros();
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Serial.print("10x MCP.readPowerDownModeEEPROM():\t");
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Serial.println(stop - start);
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start = micros();
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for (int i = 0; i < 10; i++)
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{
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x = MCP.writePowerDownMode(i & 0x03);
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}
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stop = micros();
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Serial.print("10x MCP.writePowerDownMode(i):\t\t");
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Serial.println(stop - start);
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Serial.print("\nDone... (start triangle mode)");
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}
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void loop()
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{
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for (uint16_t i = 0; i < 4096; i++)
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{
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MCP.setValue(i);
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delay(10);
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}
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for (uint16_t i = 0; i < 4096; i++)
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{
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MCP.setValue(4096 - i);
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delay(10);
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}
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}
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// -- END OF FILE --
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