Target Board Information
STMicroelectronics Traviata (mb426)
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Traviata
| Board name | Traviata |
| Board Id | mb426 |
| Chip | stm8010 |
| Target CPU | ST231 |
| Memory | 64Mb |
| Flash | 8Mb |
| STEM connector | No |
| On board Ethernet | SMSC9118 |
This board is intended as a reference design for the 8010.
Hardware Setup
Jumper Setting
The traviata ships with a program in FLASH. It is essential that all processors
are in debug mode before booting Linux onto the board, or else the AVENC and
AVDEC processors will interfere with Linux.
| Switch |
Description |
On |
Off |
Set to |
| JMP 1 |
HOST debug mode |
Normal (boot from flash) |
Debug mode |
off |
| JMP 2 |
AVDEC debug mode |
Normal (boot from flash) |
Debug mode |
off |
| JMP 3 |
AVENC debug mode |
Normal (boot from flash) |
Debug mode |
off |
Versions of the board prior to version 2.2 August 2005 do not have any
jumpers. Instead boot from ROM is controlled by resistors. Many of
these boards have been modded so that the boot from ROM for
all processors is controlled by putting a jumper across pin 2
of the JTAG connector.
Serial ports
The serial port on the traviata is connected through a dongle that should have been supplied with
the board. It is necessary to remove the top case to get access to the connector to plug it in.
| Panel name |
Schematic name |
Type |
Chip name |
Device |
Cable type for console |
| N/A | CON3 | ASC | ASC2 | /dev/ttyAS0 | Supplied cable |
EMI Config
The traviata does not require a tapmux box to talk to the host processor. The HTI connects via con 7,
again it is necessary to remove the top case to get access to it.
| EMI config | Needs update |
| Boot script name | mb426 |
| Extra parameters | -d 2 -e "NO_TAP_CTRL BOARD_TXT_FILE board_bypass.txt" |
Known problems
Early versions of this board had a problem with ethernet, the cable connecting the processor board
to the back panel is wrong. Early versions also had a problem with the EEPROM containing the MAC address,
a modification is needed to be able to program the EEPROM.
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