Wire.requestFrom(address, quantity)
Wire.requestFrom(address, quantity, stop)Used by the master to request bytes from a slave device. The bytes may then be retrieved with the available() and read() functions. requestFrom() accepts a boolean argument changing its behavior for compatibility with certain I2C devices. If true, requestFrom() sends a stop message after the request, releasing the I2C bus. If false, requestFrom() sends a restart message after the request. The bus will not be released, which prevents another master device from requesting between messages. This allows one master device to send multiple requests while in control. The default value is true.
Wire.requestFrom(address, quantity)
Wire.requestFrom(address, quantity, stop)address: the 7-bit address of the device to request bytes from quantity: the number of bytes to request stop : boolean. true will send a stop message after the request, releasing the bus. false will continually send a restart after the request, keeping the connection active.
Corrections, suggestions, and new documentation are very welcomed. They can be contributed to the energia website repository on Github.
The text of the Energia getting started and reference guides are licensed under a Creative Commons Attribution-ShareAlike 3.0 License. The Energia reference is based on the Wiring/Arduino reference. Code samples in the guide are released into the public domain.
Energia sketches are C/C++ based and compiled with the open-source compiler MSPGCC or arm-gcc-none-eabi. The Energia language comes from Wiring. The Energia environment is based on Processing and includes modifications made by Wiring and Arduino.
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