Hi Graham,
I tried long long and uint64_t, and ULL. They all compile but in the
end are still only 4 bytes. There are some online posts to the
contrary but I couldn't get more than 4 bytes.
I don't have any Arduinos any more but I tested some simple code on a
Teensy2 which is still a 328 processor and the Arduino IDE.
It prints the sizeof a uint32_t variable as 8. The problem you can run
into with uint64_t is when you try to print it because the serial class
only handles 32-bit integers. You have to print the variable in two
pieces as shown in this simple sketch:
volatile uint64_t testing_i;
void setup(void)
{
Serial.begin(9600);
while(!Serial);
delay(1000);
Serial.print("Sizeof uint64_t = ");
Serial.println(sizeof(testing_i));
testing_i ^= 0xffffffff12345678ULL;
Serial.print((uint32_t)(testing_i >> 32)&0xffffffff,HEX);
Serial.println((uint32_t)testing_i&0xffffffff,HEX);
}
void loop(void)
{
}
BUT CQ VE3GHM FN25 gets truncated and drops the 5
That string is 14 characters long, which suggests that it is being
truncated to 13 characters as if it was free text.
73 de Pete VE5VA
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