hello my friends , i have a 264 bytes file on sd card
i want to write only counting from the first Byte 0
Count up through all the bytes until i reach the Bytes
35, 36, 37, and 38
then i want to change the hex values at 35, 36, 37, and 38
how can i do this?
( also if it helps the offset i want to change is 0000001D at this location 0x23 0x24 0x25 0x26 )
i have this code , but i do no know how to go to the places 0x23 0x24 0x25 0x26 ...
and write hex values to them...
long offset = 0x0000001D; // Define where to go to
File myFile = SD.open("1.txt");
// Got to the desired location