Flashee-EEPROM cant get it to work

Firmware Libraries
1

I’m trying to test out using the Flashee library but I cant seem to get it working correctly. Basically all I want to do is create a rolling log of unit32_t numbers.

When I read I do no get the same value as what I am writing. My results are below.

Thoughts on what I’m missing?

thanks in advance.

#include "flashee-eeprom.h"
    using namespace Flashee;

FlashDevice* flash;

void setup() {
    flash = Devices::createAddressErase();

    uint32_t testLog = 4222222222;
    flash->write(testLog, 5);
    Serial.print("write: ");
    Serial.println(testLog);
    delay(10);
    Serial.print("read: ");
    testLog = flash->read(testLog, 5);
    Serial.println(testLog);
}

void loop{
}

My Results is:

write: 4222222222
read: 1

2

Try flash->write((const void*)&testLog, 4); and flash->write((void*)&testLog, 4); instead.

3

@ScruffR, I update to below, now I get an error. I assume you meant flash->write((void*)&testLog, 4); as flash->read((void*)&testLog, 4);

uint32_t testLog = 4222222222;
    flash->write((const void*)&testLog, 4);
    Serial.print("write: ");
    Serial.println(testLog);
    delay(10);
    Serial.print("read: ");
  testLog = flash->read((void*)&testLog, 4);
    Serial.println(testLog);

4

I see you were using other overloads than I was looking at, where your 5 was the address.
Sorry for the misunderstanding.

In this case try flash->write((const void*)&testLog, 5, 4); and flash->read((void*)&testLog, 5, 4); instead (again :blush:).

And also check the return (bool) of the two statements.

5

@ScruffR, how do I check the returns of the statements?

also tried the above, and I get the same results

 	uint32_t testLog = 4222222222;
	flash->write((const void*)&testLog, 5, 4);
	Serial.print("write: ");
	Serial.println(testLog);
	delay(10);
	Serial.print("read: ");
        testLog = flash->read((void*)&testLog, 5, 4);
	Serial.println(testLog);
6

@wesner0019, I’m going to ask a dumb question. Are you using a Core, a Photon or a P1?

7

@peekay123, dumb questions don’t exist for me!

I’m using a P1.

8

@wesner0019, less dumb question. Does flashee support the P1 as of yet?

9

@peekay123, from the fit repo it says it’s been ported for the P1

10

@mdma, wondering if you were ever able to test the flashee-eeprom library on the P1? I’ve tried running the performace-profile.cpp example on my P1 but nothing is displaying on my serial screen. Even when I have the below in the setup.

I do have a connected SPI LCD. Could this be causing issues possibly?

void setup()
{
    Serial.begin(9600);
    delay(6000);
    Serial.println("delay(2000)");
    
}
1 Like
11

@mdma I also would love to know if Flashee is working on the P1 reliably yet since I may need to use it in the near future.