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Old thread has been locked -- no new posts accepted in this thread
???
08/11/06 15:31
Read: times
#122067
- 89s52 programmer
Responding to: ???'s
previous message
Use HC chips.
regards
List of 53 messages in thread
Topic
Author
Date
AT89s52 error with programmers
01/01/70 00:00
the 'weekly' question get the weekly answer
01/01/70 00:00
Add some pull up resistors (4.7K\'s) on LS device.
01/01/70 00:00
risque business
01/01/70 00:00
Home made JTAG
01/01/70 00:00
It is so refreshing to see thing like this instead
01/01/70 00:00
Tested!
01/01/70 00:00
have you 'tested' that the flash caps are fully
01/01/70 00:00
Atmel does that
01/01/70 00:00
I think you are wrong
01/01/70 00:00
I don't think so
01/01/70 00:00
yes, and no
01/01/70 00:00
Bah, shoot that designer :-)
01/01/70 00:00
not the chip designer
01/01/70 00:00
JTAG x Flash Data Retention
01/01/70 00:00
nope
01/01/70 00:00
Tnx for answers...!
01/01/70 00:00
89s52 programmer
01/01/70 00:00
Only LS chips
01/01/70 00:00
there is the mail
01/01/70 00:00
here is world´s end
01/01/70 00:00
However far it from nowhere, I am sure you have ma
01/01/70 00:00
You can buy here!
01/01/70 00:00
he can do it himself...
01/01/70 00:00
What more fast than 9 ns?!
01/01/70 00:00
I do not understand. What I said is not to find s
01/01/70 00:00
Then stop doing in electronics!
01/01/70 00:00
re: AT89S52 error
01/01/70 00:00
Somebody test buffer CD4010?
01/01/70 00:00
the CD40 is sloooooooow compared to HC
01/01/70 00:00
What more fast than 9 ns?!
01/01/70 00:00
Not the speed is reason only
01/01/70 00:00
But and the pull ups in buffer´s out?
01/01/70 00:00
Does that suggest anything to you?
01/01/70 00:00
Type "74VHC244" into the search window
01/01/70 00:00
show the calculations
01/01/70 00:00
Schematic of programmer using 74LS244
01/01/70 00:00
Circuit that i am using
01/01/70 00:00
the very reason
01/01/70 00:00
Right...!
01/01/70 00:00
have you conmsidered a 'radical' approach
01/01/70 00:00
RX2...?!
01/01/70 00:00
Rx2
01/01/70 00:00
Try this one
01/01/70 00:00
a full circle
01/01/70 00:00
Time for a decision...
01/01/70 00:00
I did it...!
01/01/70 00:00
Can\'t you order the parts by mail?
01/01/70 00:00
the old STUPID "It is tested"
01/01/70 00:00
Gee, another BS answer from Erik.
01/01/70 00:00
I can BE QUITE specific about what I post
01/01/70 00:00
"tested" does not mean tested
01/01/70 00:00
and even then ...
01/01/70 00:00
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