AN969 Datasheet, PDF (9/10 Pages) STMicroelectronics – SCI COMMUNICATION BETWEEN ST7 AND PC

SCI COMMUNICATION BETWEEN ST7 AND PC
Figure 5. Transmission mode, Reception mode
A
Nb = 4
B
Nb = 4
set SCI peripheral
in transmission mode
set SCI peripheral
in reception mode
send the byte from
address (Nb-1) of buffer
no _{byte sent ?}
yes
Nb = Nb - 1
no ^{new byte}
received ?
yes
put new byte into
buffer at address (Nb-1)
Nb = Nb - 1
no
Nb = 0 ?
yes
B
no
Nb = 0 ?
yes
A
4.4 SOFTWARE
All the source files in assembly code are given in the zip file with application note.
The source files are for guidance only. STMicroelectronics shall not be held liable for any di-
rect, indirect or consequential damages with respect to any claims arising from use of this soft-
ware.
9/10