I2C Problem #1
Posted: Thu Feb 15, 2018 9:02 pmHello,
I have a multi-master I2C setup. The PoC code works fine on Arduino Mega and Uno. However, when I compile it and upload it to my Heltec Wifi 8 Kit, the code runs but hangs on waiting to send ACK.
(It is awesome that I can specify pin numbers to use, can't seem to do this on Mega or Uno.)
I have successfully tested the same pins with the I2C_Master and I2C_Slave examples with success.
Some code:
"send_ack_signal" never changes, which is created when you initialize I2C.
Might have to break out the analyzer and see what is happening but thought I'd ask here first.
I have a multi-master I2C setup. The PoC code works fine on Arduino Mega and Uno. However, when I compile it and upload it to my Heltec Wifi 8 Kit, the code runs but hangs on waiting to send ACK.
(It is awesome that I can specify pin numbers to use, can't seem to do this on Mega or Uno.)
I have successfully tested the same pins with the I2C_Master and I2C_Slave examples with success.
Some code:
Code: Select all
void loop()
{
Serial.write("Waiting to send ack...");
while (!send_ack_signal)
{
delay(500);
}
"send_ack_signal" never changes, which is created when you initialize I2C.
Might have to break out the analyzer and see what is happening but thought I'd ask here first.