How can I make a software RESET ?

Thread View: comp.sys.transputer

2 messages

[T] Back to Threads [V] Tree View [G] Group Articles

2 total messages Started by Phil Fri, 28 Apr 1989 07:16

#2655

Author: Phil
Date: Fri, 28 Apr 1989 07:16

17 lines
835 bytes

						April 28th, 1989


	I would like to execute some OCCAM code on a transputer in such a
way that it would seem to the rest of the world that this transputer is waiting for downloading in a BootFromLink fashio
n.

	The point is to be able to load a transputer network more than once
with a single Hardware RESET after power-up.

	Is it possible (perhaps with GUY) ?
	Is the solution published somewhere ?

							Regards

							Phil

Re: How can I make a software RESET ?

#2660

Author: David Boreham
Date: Sun, 30 Apr 1989 19:34

27 lines
1501 bytes


In response to "Is it possible to make a transputer look like it has been reset?
" ---- YES IT IS !


There are two alternatives :-

1) Execute the instruction which puts the processor back into the reset
   state. (I'm not sure if this is documented nowadays, but it's there).
2) Run a program which emulates the peek/poke/boot procedure and then
   jumps into the booted program. Obvoiusly this allows more complex
   things than (1) (like looking for boot code simultaneously on links
   and non-link devices) but has the disavantage of not being able to
   cope with programs which try to boot into memory being used by the
   loader.

We have used both the above with some success.


(Although it looks like it is, this should not be confused with INMOS 
 technical support).

-- 
David Boreham, INMOS Limited | Email(uk): davidb@inmos.co.uk or ukc!inmos!davidb
Bristol,  England            |      (us): uunet!inmos-c!davidb
+44 454 616616 ex 543        | Internet : @col.hp.com:davidb@inmos-c

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads