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Target Board Information
STMicroelectronics ST220 Eval board(mb392)
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ST220 Eval Board
This board was designed to allow evaluation of the ST220 core. However
it has a good set of audio-video functionality and is used to develop
AV platforms. When used with Linux the CPU is the ST40, not the ST220 which
is not supported by Linux as it lacks an MMU.
| Board name | ST220 Eval board |
| Board Id | mb392 |
| Chip | stm8000 |
| Target CPU | ST40-103 |
| Memory | 64Mb |
| Flash | 8Mb |
| STEM connector | Yes |
| On board Ethernet | SMSC91C111 |
Hardware Setup
Serial ports
| Silk screen |
Schematic name |
Type |
Chip name |
Device |
Cable type for console |
| COM 0 | P2 | ASC | UART3 | /dev/ttyAS0 | Null modem |
| COM 1 | P3 | ASC | UART4 | /dev/ttyAS1 | Null modem |
Revision A of this board (with the video on phono
sockets insead of a SCART connector) has COM0 and COM1 reversed on the
silk screen.
Jumper settings
| Jumper ID |
Function |
Position |
| W1 |
DVD Slide control |
off |
| W2 |
USB speed |
off |
| W3 |
RS232 or DVD slide control |
1-2 (RS232) |
| W4 |
RS232 or DVD slide control |
1-2 (RS232) |
| W5 |
F_BLANKING for SCART |
off |
| Switch |
Function |
Position |
| SW1-1 |
ST220 Video encoder debug enable |
on |
| SW1-2 |
ST220 Audo encoder debug enable |
on |
| SW1-3 |
ST220 Audio decoder debug enable |
on |
| SW1-4 |
System clock input |
on |
EMI Config
| EMI config | Standard |
| Boot script name | mb392 |
Known problems
No known problems with this board
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