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adafruit / Adafruit_NFCShield_I2C

I2C Driver for Adafruit's PN532-based NFC Shield
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No delay needed between Wire.read() after a Wire.requestFrom(). #23

Closed Koepel closed 5 years ago

Koepel commented 5 years ago

In the file "Adafruit_NFCShield_I2C/Adafruit_NFCShield_I2C.cpp" in the function wirereaddata(), there is a delay(1) (at the moment in line 985) in the for-loop when reading data.

That delay may be removed. The data is put into a buffer by the Wire.requestFrom(). After the I2C bus transaction has finished, the Wire.read() reads data from that buffer. There is no need to have a delay to get data from a buffer.

ladyada commented 5 years ago

thanks - this repo is totally deprecated and unsupported, we're not only using our main PN532 library!