Instructions

405 C-Control Pro IDE

6. How much RAM do I have for my programs?

There are 930 bytes left for own programs on the Mega32, on the Mega128 remain 2494 bytes. In-

terpreter and Debugger are using buffer for interrupt driven I/O, and 256 bytes for the data stack.

Beside this resources, there are some internal tables, that are needed for interrupt handling and

multitasking. Additionally some RAM Variables are used from library functions.

7. Where is the second serial interface on the Mega128 Application Board?

See J4 chapter Jumper Application Board M128.

8. I need no USB connection to the application board, how can I reclaim the reserved ports for USB?

The USB interface is wired to the C-Control module over the SPI interface. The SPI interface can

be disabled with SPI_Disable(). Do not forget to remove the jumper that connects the SPI with the

Mega8 (USB interface) on the application board.

9. Where do I have the supply voltage on the breadboard of the Application Board?

If you turn the application board to a position where the interface connectors (USB and serial)

show to the upper side, the leftmost column on the breadboard is GND and the rightmost column

is VCC. You can see it clearly, when you take a look of the backside of the board.

10. I need more ports for my hardware application. Many ports are used by other functions.

Take a look at the Pin Assignment of M32 and M128. You can use all ports that have no spe-

cial functionalities ( SPI, RS232, LCD, Keyboard etc.) that are needed for your application.

Do not forget to remove the jumper that connects the port pins to the application board.

Otherwise the behaviour can be undetermined.

6.3 AVR32Bit

1. There is no USB connection to the Application Board.

Is the USB (usbser.sys) driver loaded on the PC? Or maybe an "unknown device" appears in the

hardware manager when inserting the USB plug?

Is the correct communication port set?

Please read the USB Troubleshooting guide!

On delivery, the Autostart jumper is set. Please remove, otherwise no program transfer is pos-

sible.

2. How do I turn on the pull-up resistor of an input port?

See Port_Attribute ().