External Serial Cards - new 16650 and 16750 UART

External Serial Cards - new 16650 and 16750 UART

Post by Mark K » Sun, 29 Mar 1998 04:00:00



I see that setserial supports 16550 uart chips.  I just plugged in two 16650
cards to be used with
ISDN modems.  How can I take full advantage of these cards - they should be
able to go as high
as 460.8 kbs.  When I plug them in - the system just sees them as 16550.

Please Help

Mark

 
 
 

External Serial Cards - new 16650 and 16750 UART

Post by Mark K » Sun, 29 Mar 1998 04:00:00


I just noticed somthing strange about my serial ports.   When I use them in
minicom - I can not set the speed above 9600.

Output from setserial:
    /dev/ttyS0 at 0x03f8 (irq = 4) is a 16450
    /dev/ttyS1 at 0x02f8 (irq = 3) is a 16550A (spd_vhi)
    /dev/ttyS2 at 0x03e8 (irq = 5) is a 16550A (spd_vhi)
    /dev/ttyS3 at 0x02e8 (irq = 12) is a 16550A (spd_vhi)

Any ideas?

Or any body know where I can get help?


>I see that setserial supports 16550 uart chips.  I just plugged in two
16650
>cards to be used with
>ISDN modems.  How can I take full advantage of these cards - they should be
>able to go as high
>as 460.8 kbs.  When I plug them in - the system just sees them as 16550.

>Please Help

>Mark


 
 
 

1. UART 16650 16750 supported ?

I'have got a UART from Texas Instruments ti 16c750
with a 64 byte fifo it's 16450 and 16550 compatible.
Setting another bit ist uses it's 64Byte Fifo .
Anyone already changed the serial driver for this chip ?

josef
--
+----------------------------------------------------------------------+
| josef kraus, bergring 38, 91166 georgensgmuend, phone ++49.9172.2771 |

+----------------------------------------------------------------------+

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