spi2transfer - GreatCowBASIC/Help GitHub Wiki

Syntax:

  SPI2Transfer tx, rx

Command Availability:

Available on Microchip PIC microcontrollers with Hardware SPI modules.

Explanation:

This command simultaneously sends and receives a byte of data using the SPI protocol. It behaves differently depending on whether the microcontroller has been set to act as a master or a slave. When operating as a master, SPI2Transfer will initiate a transfer. The data in tx will be sent to the slave, whilst the byte that is buffered in the slave will be read into rx. In slave mode, the SPI2Transfer command will pause the program until a transfer is initiated by the master. At this point, it will send the data in tx whilst reading the transmission from the master into the rx variable.

See also SPIMode,FastHWSPI2Transfer