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EEPROM rewrite #75

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Merged
merged 9 commits into from
Oct 23, 2019
Merged

EEPROM rewrite #75

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0a4b707
Re-write of EEPROM functions
nseidle Oct 14, 2019
faa9632
Block updates close to working.
Oct 15, 2019
d1753ea
Byte write() now uses block write.
Oct 15, 2019
af4e137
Block write works. Updated examples.
nseidle Oct 15, 2019
669bb4f
Move writeBlock function outside of class.
nseidle Oct 15, 2019
2433f67
Reduce EEPROM area back to original 1024 bytes
nseidle Oct 16, 2019
3829af2
Add re-write test to example 2.
Oct 16, 2019
196d685
Rewrite EEPROM block write to use one array instead of two (less SRAM…
Oct 16, 2019
217a39b
Merge branch 'master' into eepromRewrite
nseidle Oct 18, 2019
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2 changes: 1 addition & 1 deletion libraries/EEPROM/examples/Example1_GetPut/Example1_GetPut.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,7 @@

void setup()
{
Serial.begin(9600);
Serial.begin(115200);
Serial.println("EEPROM Examples");

byte myValue1 = 200;
Expand Down
54 changes: 45 additions & 9 deletions libraries/EEPROM/examples/Example2_AllFunctions/Example2_AllFunctions.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -23,14 +23,14 @@

void setup()
{
Serial.begin(9600);
Serial.begin(115200);
Serial.println("EEPROM Examples");

randomSeed(analogRead(A0));

long startTime;
long endTime;
uint16_t randomLocation;
int randomLocation;

//Test erase time
startTime = millis();
Expand All @@ -53,6 +53,12 @@ void setup()

Serial.printf("Write byte time: %dms\n", endTime - startTime);

startTime = millis();
EEPROM.write(randomLocation, myValue1); //(location, data)
endTime = millis();

Serial.printf("Write identical byte to same location (should be ~1): %dms\n", endTime - startTime);

byte response1 = EEPROM.read(randomLocation);
byte response2 = EEPROM.read(randomLocation + 1);
Serial.printf("Location %d should be %d: %d\n\r", randomLocation, myValue1, response1);
Expand Down Expand Up @@ -106,8 +112,8 @@ void setup()
uint32_t myValue8 = 241544;
randomLocation = random(0, AP3_FLASH_EEPROM_SIZE);

EEPROM.update(randomLocation, myValue7);
EEPROM.update(randomLocation + 4, myValue8);
EEPROM.put(randomLocation, myValue7);
EEPROM.put(randomLocation + 4, myValue8);

int32_t response7;
uint32_t response8;
Expand All @@ -124,8 +130,8 @@ void setup()
float myValue10 = 5.22;
randomLocation = random(0, AP3_FLASH_EEPROM_SIZE);

EEPROM.update(randomLocation, myValue9);
EEPROM.update(randomLocation + 4, myValue10);
EEPROM.put(randomLocation, myValue9);
EEPROM.put(randomLocation + 4, myValue10);

float response9;
float response10;
Expand All @@ -143,20 +149,50 @@ void setup()
Serial.printf("Size of double: %d\n", sizeof(double));
double myValue11 = -290.3485723409857;
double myValue12 = 384.95734987;
double myValue13 = 917.14159;
double myValue14 = 254.8877;
randomLocation = random(0, AP3_FLASH_EEPROM_SIZE);

EEPROM.update(randomLocation, myValue11);
EEPROM.update(randomLocation + 8, myValue12);
startTime = millis();
EEPROM.put(randomLocation, myValue11);
endTime = millis();
Serial.printf("Time to record 64-bits: %dms\n", endTime - startTime);

EEPROM.put(randomLocation + 8, myValue12);
EEPROM.put(EEPROM.length() - sizeof(myValue13), myValue13); //Test end of EEPROM space

double response11;
double response12;
double response13;
EEPROM.get(randomLocation, response11);
EEPROM.get(randomLocation + 8, response12);
EEPROM.get(EEPROM.length() - sizeof(myValue13), response13);
Serial.printf("Location %d should be %lf: %lf\n", randomLocation, myValue11, response11);
Serial.printf("Location %d should be %lf: %lf\n", randomLocation + 8, myValue12, response12);
Serial.printf("Edge of EEPROM %d should be %lf: %lf\n", EEPROM.length() - sizeof(myValue13), myValue13, response13);

double response14;
EEPROM.put(EEPROM.length() - sizeof(myValue14), myValue14); //Test the re-write of a spot
EEPROM.get(EEPROM.length() - sizeof(myValue14), response14);
Serial.printf("Rewrite of %d should be %lf: %lf\n", EEPROM.length() - sizeof(myValue14), myValue14, response14);
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Serial.println();
Serial.println("");
Serial.println("String test");

//String write test
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
char myString[19] = "How are you today?";
randomLocation = random(0, AP3_FLASH_EEPROM_SIZE);
EEPROM.put(randomLocation, myString);

char readMy[19];
EEPROM.get(randomLocation, readMy);
Serial.printf("Location %d string should read 'How are you today?': ", randomLocation);
Serial.println(readMy);
//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Serial.println("");
Serial.print("Flash Contents:");
for (uint16_t x = 0; x < 8 * 4; x += 4)
{
Expand Down
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