Instructions

61 C-Control Pro IDE
© 2013 Conrad Electronic
2.1.9 Mega128 Projectboard
The "C-Control PRO 128 Projectboard" (Conrad Item no. 197313) provides a economic alternative to
the "Application-Board MEGA128" (Conrad-Order no. 198258). Compared to the C-Control Pro ap-
plication board, it's range of functions is significantly limited, and is used mainly for own hardware
developments related to the "MEGA128 UNIT" and the "MEGA128CAN UNIT". The Projectboard also
offers a connector "J3", which provides the CAN bus interface of the "MEGA128CAN". On the Pro-
jectboard the "MEGA128" or the "MEGA128CAN" can optionally be used. The Projectboard PRO
128 includes the most important components needed to operate the "MEGA128 UNIT". Furthermore,
the Projectboard features a power supply (USB/AC adapter), a interface converter (RS232) and a
large prototype area available for your own development. By default, the Project Board is designed
for programming via RS232. Optionally, the RS232-USB converter (Conrad-Order no. 197257) can be
used for programming the "MEGA128 UNIT" via USB. In this case the programming is done via the
serial connection of the "MEGA128 UNIT" (UART), so the program transfer is not as fast as the USB
transfer on the "Application-Board MEGA128".
The "MEGA128 UNIT" is so plugged that the signature of the UNIT is readable, if the (RESET/RUN
& BOOT/STOP) button shows to you.
In the baseline condition with no-USB-RS232 converters the jumpers JP4/JP5 are put like shown
in the figure.
When using the RS232-USB converter (not included), the jumper must be reconnected to USB.
The jumper J2 is used to select the supply voltage. With the jumper set to "network", the clamps
J11 are used for the power supply (stabilized DC power supply or power adapter min. 100mA, de-
pending on application). If the jumper J2 is replugged to USB, the board can be operated via the
USB power supply of the computer.