P89LPC936 ICP with MCB900

[Jan]

Hello, is there anyone out there, who could help me to program the 936 with the eval board MCB900 from Keil.

I set up the modification on the board, described in AN10258 from philips.
I think the pnp-transistor doesn't work in this way, if you installed the recommended ISP-ICP Bridge, because the level of P2.3 will be high and so no voltage is supplied to the processor, while programming. Am I wright?

So I inverted the signal with no positive effect.
As the other signals appear at the processors pins (P0.4, P0.5, P1.5, Vdd) I think that the malfunction of programming is related to the timing of the signals. Have anyone information about that timing?

Thanx,
Jan

[Andy Ayre]

I'm not sure which version of that application note you are following but the diagram in version 1 is incorrect w.r.t the transistor. You can find version 2 on the Flash Magic home page towards the bottom.

[Jan]

O.k. (I got the paper version 1), but I said it before, that this is not the real problem . I need information about the timing, because I program the Tssop28 processor indirectly in an application with propagation delays.

Jan

[Andy Ayre]

If you are following revision 1 of AN10258 then that is a problem, because the circuit diagram is incorrect. The transistor is wrong and there is a pin connection wrong.

I don't have information on ICP signals and their timing. Maybe try asking Philips?

[Jan]

Can you tell me, where I can get the source code of the ISP-ICP bridge, in order to change some timings?

Jan

[Andy Ayre]

There is the source code of an old version (1.2) somewhere on line, but I don't know if the source code is available for the current version. Maybe Philips will give it to you.