AN2451
Evaluation tools description
Doc ID 12791 Rev 3
11/55
The device also recovers the synchronism of the received signal using an internal PLL. The
recovered clock is present on CLR/T output.
The ST7540 operating parameters can be set by means of an internal control register,
accessible only through the SPI host interface.
4
Evaluation tools description
The complete evaluation system for the ST7540 powerline communication consists of:
●
a PC using the "ST7540 power line modem demo kit" software tool
●
one EVALCOMMBOARD hosting the ST7 microcontroller
●
one ST7540 reference design board (EVALST7540-2).
The correct procedure for connecting the EVALST7540-2 and the EVALCOMMBOARD is as
follows:
1.
Connect the EVALST7540-2 and the EVALCOMMBOARD
2.
Connect the ac mains cable to the EVALST7540-2 and the USB cable to the
EVALCOMMBOARD
3.
Connect the EVALST7540-2 to the ac mains supply
4.
Connect the EVALCOMMBOARD to the PC via the USB cable.
Warning:
Follow the connection procedure to avoid damaging the
boards.
Figure 4.
Complete evaluation system including a PC, an EVALCOMMBOARD and
the EVALST7540-2 board
U
U
S
S
B
B
/
RS232
Содержание ST7540
Страница 47: ...AN2451 Application ideas Doc ID 12791 Rev 3 47 55 Figure 47 Line coupling interface for 110 kHz channel...
Страница 48: ...Application ideas AN2451 48 55 Doc ID 12791 Rev 3 Figure 48 Line coupling interface for 132 5 kHz channel...
Страница 51: ...AN2451 Board layout Doc ID 12791 Rev 3 51 55 Appendix A Board layout Figure 49 PCB layout component placing...
Страница 52: ...Board layout AN2451 52 55 Doc ID 12791 Rev 3 Figure 50 PCB layout top view...
Страница 53: ...AN2451 Board layout Doc ID 12791 Rev 3 53 55 Figure 51 PCB layout bottom view...
