Appendix D: About Firmware; Cc9C Serial Port Configuration; Startup; Firmware Images - Landis+Gyr Gridstream IV Series User And Installation Manual

D
About Firmware
The concentrator is an integrated unit consisting of
• Gridstream Series IV Integrated WAN Radio (IWR)
• BLT IV LAN Radio
• ConnectCore 9C CPU module
The ConnectCore 9C (CC9C) module is built on NetSilicon 32-bit NET+ARM technology. This is a
fully integrated system-on-chip, which provides embedded networking connectivity and additional
main processor performance and bandwidth to handle sophisticated embedded applications.
The features of the CC9C module are below:
• 32-bit NS9360 processor, operating at 155MHz
• 8MB Flash and 32 MB
• 10/100 Mbit Ethernet interface with on-board RJ-45 connector
• Four, high-speed serial ports. (Three ports out of four ports are used by the concentrator, the
fourth is for PC communications)
• Real Time Clock (Processor powered, no battery backup)

CC9C Serial Port Configuration

The CC9C provides a general purpose I/O (GPIO) interface. The GPIO lines corresponding to Serial
port A, B and C are connected to the console, Gridstream WAN Radio and BLT LAN Radio. The
details of the ConnectCore module are described in "ConnectCore™ 9C Hardware Reference. Part
number/version: 90000722_A Release date: June 2005."
All the serial ports are configured in UART mode. Except for baud rate, serial port parameters on all
the ports are configured for 8 Bits, No Stop Bits, 1 Parity Bit (8, N, 1) and handshake mode is 'none'.
The console port operates at 9600 baud, the WAN port operates at 19200 baud and the LAN port
operates at 19200 baud.

Startup

Firmware Images

The concentrator firmware consists of two image files, "rom.bin" and "image.bin". The file
"rom.bin" is also referred to as the boot image. The file "image.bin" is also referred as the main/
Series IV Concentrator U and I Guide 98-1031 Rev AA 89