Anadigm AnadigmApex AN231K04-DVLP3, Руководство пользователя

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AN231K04-DVLP3 – AnadigmApex Development Board
UM023100-K001 Page 6 of 16
7.0 Jumpers
Table 1 shows a complete list of the jumpers on the board and figure 4 shows their positions.
Jumper Function Default State Default Condition
J1 This jumper allows the MCLRb pin of the PIC to
either be connected to the PORb pin of the FPAA or
to be grounded. Grounding the MCLRb pin tristates
all of the PIC I/Os and thus allows connection of
another controller to the digital pins of the FPAA.
Useful for daisy chaining boards where one PIC
controls 2 or more FPAAs. Jumper to right MCLRb pin of PIC is
connected to PORb
pin of FPAA
J4 Connects pull-ups and downs to some of the FPAA
digital pins, or ties CS_B1 low. A jumper in place
connects the pull-up/down in the following way:
POR – 10k pull-up on PORb
ACT – 10k pull-up on ACTIVATE
ERR – 10k pull-up on ERRb
SI – 10k pull-down on SI
CS1 – ties CS_B1 low
CS – 10k pull-down on CS_B
CFG – 10k pull-up on CFGFLG Jumpers on POR,
ERR, CS1 and CS
PORb is pulled high,
ERRb is pulled high,
CS_B1 is tied low and
CS_B is pulled low.
J5 Connects the digital section to the analog section All 15 jumpers
should be on.
Fully connects power,
ground and all FPAA
digital signals to the
digital section.
J6 Allows serial download of software to PIC via the
RS232 port. Press reset after placing a jumper on J6
and then use Tera Term Pro to download the new
software. Jumper off Not in software
download mode
J7 A jumper on J7 will disable the 16MHz oscillator
module and tristate its output. This means that the
ACLK pin of the FPAA will not be clocked. Useful in
daisy chaining boards where the ACLK pin of 2 or
more FPAAs should be driven by one source. Jumper off 16MHz oscillator
enabled
J8 A jumper on J8 enables EPROM mode. Jumper off Board in micro mode.
Table 1: Summary of Development Board Jumpers