Table of Contents
Advertisement
K7: CPU Serial interface connector
AD00 1
MD0 3
SERRES 5
SOT 7
VCC 9
The serial interface connector should be used only when the CPU board is not
connected to the mainboard, because mainboard connects its own serial (RS232)
interface to the UART0 or UART1 CPU signals. To be able to use the K7
connector, please refer to the description of J7, J8, J9 jumpers later in this
section.
Warning: if you want to use the K7 connector when Mainboard is
connected to the CPU board, you have to disconnect the serial
interface selected by J7-9 from the RS232 drivers on the Mainboard.
To achieve this, remove jumpers on positions 3-4, 5-6 from both the
J21 and J22 headers on the Mainboard. Also, when the Async. Serial
programming mode is set on the Mainboard System control DIP switches,
the FPGA UART RS232 driver is connected to UART0 or UART1
(depending on the setting of the UART0/1 switch) after reset. If you
want to use K7 also in that case, remove the 3-4, 5-6 jumpers on the
J23 as well.
K9: power supply connector
Before applying the power to the Devkit16, check the polarity of your power
chord plug – the GND must be in the center, while the +9V on the shell of the
connector. Even thought the DevKit16 power lines are protected by a diode on
the power input, do not ever apply power with the opposite polarity. Also, make
sure that the power supply complies to the specifications in chapter CPU Board
Power Supply Requirements.
2 AD01
4 MD2
6 SIN
8 SCK
10 GND
40
40
40
40
GND
+9V
Advertisement
Table of Contents
