mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-10-03 18:09:02 -04:00
99 lines
1.7 KiB
C++
99 lines
1.7 KiB
C++
//
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// FILE: testFRAMPerformance.ino
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// AUTHOR: Rob Tillaart
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// PURPOSE: test for FRAM library for Arduino
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// URL: https://github.com/RobTillaart/FRAM_I2C
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//
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#include "FRAM.h"
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FRAM fram;
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uint32_t start;
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uint32_t stop;
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int ar[600]; // 1200 bytes
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void setup()
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{
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Serial.begin(115200);
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Serial.println(__FILE__);
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Serial.print("FRAM_LIB_VERSION: ");
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Serial.println(FRAM_LIB_VERSION);
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Serial.println();
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Serial.println();
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Wire.begin();
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int rv = fram.begin(0x50);
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if (rv != 0)
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{
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Serial.println(rv);
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}
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else
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{
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for (int s = 1; s < 9; s++) // test up to 800 KB
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{
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uint32_t speed = s * 100000UL;
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Serial.print("CLOCK: ");
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Serial.println(speed);
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Wire.setClock(speed);
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testReadWriteLarge();
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}
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Wire.setClock(100000);
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}
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Serial.println("done...");
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}
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void loop()
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{
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}
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void testReadWriteLarge()
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{
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for (int i = 0; i < 600; i++) ar[i] = i;
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start = micros();
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fram.write(1000, (uint8_t*)ar, 1200);
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stop = micros();
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Serial.print("WRITE 1200 bytes TIME: \t");
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Serial.print(stop - start);
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Serial.print(" us ==> \t");
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Serial.print((stop - start) / 1200.0, 2);
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Serial.println(" us/byte.");
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delay(100);
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for (int i = 0; i < 600; i++) ar[i] = 0;
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start = micros();
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fram.read(1000, (uint8_t*)ar, 1200);
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stop = micros();
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Serial.print("READ 1200 bytes TIME: \t");
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Serial.print(stop - start);
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Serial.print(" us ==> \t");
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Serial.print((stop - start) / 1200.0, 2);
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Serial.println(" us/byte.");
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delay(100);
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for (int i = 0; i < 600; i++)
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{
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if (ar[i] != i)
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{
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Serial.print("FAIL: \t");
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Serial.print(ar[i]);
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Serial.print('\t');
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Serial.println(i);
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}
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}
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Serial.println();
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}
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// -- END OF FILE --
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