Read Write to an adafruit I2C fram(adafruit 1895). I have a graph program that records 8 reading a day for 52 days.
The program work fine but when I want to change something the program has to restarts at 0 days on the graph.
On startup I would like to use the fram to reload the global array with the past data. I can read and write to the fram but I'm having trouble getting my head around write and reading 420 data points.
#include <Wire.h> // which uses the I2C interface #include <Adafruit_FRAM_I2C.h>
Adafruit_FRAM_I2C fram = Adafruit_FRAM_I2C(); // Fram
setup{
Graphsize=420
Wire.begin(); // start up I2C for the RTC
fram.begin(0x51); // Start Fram adress 0x51
void writedata(void) {
int i;
for (i=0; i< graphsize+1; ++i ) // Count to 420
fram.write8(0x51, 53); //write to Fram ?????
}
void readdata(void) {
int i;
for (i=0; i< graphsize+1; ++i ) // count to 420
fram.read8(0x51, 53); //read to Fram ??????
}
Read Write to an adafruit I2C fram(adafruit 1895). I have a graph program that records 8 reading a day for 52 days.
The program work fine but when I want to change something the program has to restarts at 0 days on the graph.
On startup I would like to use the fram to reload the global array with the past data. I can read and write to the fram but I'm having trouble getting my head around write and reading 420 data points. Arduino mega
#include <Wire.h> // which uses the I2C interface #include <Adafruit_FRAM_I2C.h>
Adafruit_FRAM_I2C fram = Adafruit_FRAM_I2C(); // Fram
setup{
Wire.begin(); // start up I2C for the RTC
fram.begin(0x51); // Start Fram adress 0x51
void writedata(void) {
int i;
for (i=0; i< graphsize+1; ++i ) // count to 420
fram.write8(0x51, 53); //write to Fram ??
}
void readdata(void) {
int i;
for (i=0; i< graphsize+1; ++i ) // count to 420
fram.read8(0x51, 53); //read to Fram ??
}
Yes I can read one at a time. I would like to use “i” with the counter to read data into and out of the array. I just don’t know how to set up fram.read statement to do that.
Hi .. I'm using an RTC FM3164 and I just need to read and write the FRAM, but I can not get it. Could you do that? I use thousands of libraries and I do not have a positive result.
Yes I can read one at a time. I would like to use "i" with the counter to read data into and out of the array. I just don't know how to set up fram.read statement to do that.
That code still doesn't compile. And learn to use code tags! (that's the </> button in the editor).
write8(address, value);
read8(address);
That's the simple interface (that's not copy/paste code, just in case...) for that library. If you don't understand the concept, please ask questions.