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(a) The Schematic
(b) The Hardware Connection
Figure 15: Hardware Test for SpeakJet Demo Mode
3.2.2 SpeakJet Driver Development for Z8
SpeakJet provides Serial Input and Event Inputs to communicate with Z8 microcontroller
through Z8 GPIOs. In Figure 16, Z8’s PG0 and PG1 connect to SpeakJet D0 and D1.
CTS0 (PA3 alternate function) connects to D2. Serial data line (TXD0) in Z8 board is
used to connect the RCX in SpeakJet. In this project, any Event Inputs are not used so all
of them connect to GND.
Figure 16: The Schematic for SpeakJet Communication with Z8
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