This isa SCC 8530 DMA board has been designed by Marko S57MMK.
This board is based on PI2 design with some modifications :

- Low speed IRQ channel : up to 76k8 speed with manchester coding
- Highspeed DMA Channel : up 2Mbit/s with data scrambler and clock recovery circuit

You could connect PSK 1,2 Mbit/s S53MV(Matjaz Vidmar) data TRX on the highspeed port.
Under Linux OS throughput is about 90 kbytes/s for a point to point tcp datagram link.

This board is available at S57MMK Marko (pcb+pal+english doc) for 60DM
This board is the better DMA SCC design , other design are not effective for speed greater then 600 kbit/s.

You can use OE1KIB dmascc driver under linux or patched PI2 driver under Linux.
OE1KIB driver support Zilog FIFO chip (ESCC Z85C230) which is generating less interrupts load for cpu.



Interesting links :

- Stefano IW3??? patches for Linux Kernel 2.4
- S5DMA ressources on lea.hamradio.si (local mirror)
- Zilog datasheets in gw.hb9ww.ampr.org FTP Server
- Up to date Linux drivers



Page created 02/24/2000
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