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Re: [avr-gcc-list] Homebrew ICE?
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From: |
Joerg Wunsch |
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Subject: |
Re: [avr-gcc-list] Homebrew ICE? |
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Date: |
Tue, 12 Aug 2003 22:36:45 +0200 (MET DST) |
As Anderas Strodl <address@hidden> wrote:
>What do you mean by 'both directions' ? +Vcc & -Vcc ??? (I'm a bit lost
>here)
>
>Both directions means that one line can be used for data transmission
>in both directions through th level shifter, so you can use a single
>line for transmission and receiption of data without any problems.
But that's not useful for the JTAG interface. However, what i meant
with »both directions« is that the Maxim chips (as well as the original
Atmel circuitry) can handle both cases, where Vcc[ICE] >= Vcc[target]
as well as Vcc[ICE] < Vcc[target]. My simple 74HCxxx circuitry can
only handle the case of Vcc[ICE] >= Vcc[target].
--
J"org Wunsch Unix support engineer
address@hidden http://www.interface-systems.de/~j/
Re: [avr-gcc-list] Homebrew ICE?, Derick Schoonbee, 2003/08/12
Re: [avr-gcc-list] Homebrew ICE?, Derick Schoonbee, 2003/08/12
Re: [avr-gcc-list] Homebrew ICE?, Derick Schoonbee, 2003/08/12
- Re: [avr-gcc-list] Homebrew ICE?, Neil Johnson, 2003/08/12
- Re: [avr-gcc-list] Homebrew ICE?, Erik Christiansen, 2003/08/12
- [avr-gcc-list] simulavr build snaggle, Erik Christiansen, 2003/08/13
- Re: [avr-gcc-list] simulavr build snaggle, Terry Porter, 2003/08/13
- Re: [avr-gcc-list] simulavr build snaggle, Erik Christiansen, 2003/08/13
- Message not available
- Message not available
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- [avr-gcc-list] Re: Yet another Avr-gcc_Simulavr_Avr-Gdb_DDD-howto, Was: Re: avr-libc install problem, Erik Christiansen, 2003/08/15
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