In message <A914533BF4B9D2118D980008C7894C0A02D1EBD3 at dueis01nok> you wrote: > > AFAIK the MPC860 ?P's are designed especially to be used with existing > telecom- designs, including existing ISDN chipsets. There should be support > for SIEMENS' GCI(2) bus and the motorola own bus (forgot the name). There is > also HDLC functionality in the CPM so that you are not forced to use an > external framer.
Right, you can handle all this using the SCC's. I know of several commercial solutions that do exactly that. Unfortunately, I don't know of an Open Source project. In our case we estimated that it would be easier (in terms of development effort) to interface an external framer, and re-use existing isdn4linux code as much as possible. Also, using a PCMCIA prototype card, it's much easier to sort out some other problems lioke endianess by running the same code on very similar hardware both on the MPC8xx target and on a normal x86 laptop. > I didnt actually integrate such things yet, but it is a spare time project I > want to start one day. Just let me know if you have any free manpower to offer :-) > In isdn4linux there should be code to access some of the siemens chips (the > ones most of the passive PC- isdn- cards are based on). Perhaps there could > be some driver code you could base your design on. That's what we're doing. Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de "There are things that are so serious that you can only joke about them" - Heisenberg ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
