AN969 Datasheet, PDF (8/10 Pages) STMicroelectronics – SCI COMMUNICATION BETWEEN ST7 AND PC

SCI COMMUNICATION BETWEEN ST7 AND PC
Figure 3. Overview Schematic
TERMINAL
PC
serial port
GND
TD
RD
GROUND
GND
IN OUT
OUT IN
MAX232
ST72F264
GND
RDI
TDO
Be sure that the three main devices (PC, ST7, MAX232) have the same electrical reference
(GND).
The Receive Data pin (RD) of the serial port of the PC must correspond to the TDO pin of the
ST7, and the Transmit Data pin (TD) to the RDI pin.
4.3 FLOWCHARTS
The flowcharts of the application are presented below (Figure 4., Figure 5.).
Figure 4. Initialization
start
ST72311 initialization
default value of buffer
SCI peripheral
initialization
A
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