SOC technologies FMC-MCM-1000, Руководство пользователя

Страница: 14 / 19

FMC-MCM-1000 Evaluation and Product Development Platform
© 2008- 2013 SOC Technologies Inc. | (519) 880-8609 | soc@soctechnologies.com
®
Page
14
of
19
When entering an address to modify or read, the address must be entered in
Hexadecimal. 0X00
– 0xFF. When changing the Data value of the register, the value
may be entered in decimal, or it may be entered in hexadecimal by starting the number
with an 'h'.
Figure A-2. UART Data Entry
Figure A-2 shows an example of reading and changing register 0xA4. On the first line
0xA4 is entered as the address to read/write. After entering the address the current
value of the register is returned (0x4D2=1234). The new value 100 is then written to the
register.
In the next line 0xA4 is read again and the new value '100' can be seen in the register.
Next a Hexadecimal value of 0xABC is written to the register using 'hABC' to specify
ABC as Hexadecimal. The successful write can be seen when reading the register in
the third line.
The Module and FMC-MCM-1000 board share the same UART interface. Thus to
communicate with the module cards the FMC-MCM-1000 has to forward the UART
signals to the module. In the example systems this is toggled by pressing Pushbutton
'S6' and checking the status of LED 'D11'.
LED 'D11'
STATUS
MEANING
OFF Network Stack Running Initialization
Blinking
– 1
Second Interval
FMC_MCM_1000 UART Interface Active
Blinking
– 3
Second Interval
MCM_1000 UART Interface Active
For more information on API registers that can be read or modified please request the
corresponding API register document for your IP Core / Module / Interface Board.