Tester for simple logic chips
ZXNet echo conference «hardware.zx»
Hello, Mikka_A
Mik> Has anyone seen the subject diagram?
soldered into the board is one thing, then look for a “signature analyzer” and another thing
for input control...for a limited list of simple logic it is easier to assemble
yourself...take any controller with jtag, hang a socket on it with the maximum
number of zero-effort legs, take stapl-player and run tests on
STAPLE. You spend about two weeks of pure time. If it's cheaper for you
$400...
Hello Orionsoft
Ori> what kind of thing is STAPL
Attempted introduction here
http://andrewsatan.narod.ru/stapl.htm
I figured this out when I was making a programmer for Actel.
I haven’t finished the article, but I have the source code and working programs at home
computer By the way, it may be useful when debugging AT91R40008 for ZX Yellow Lines
Spectrum, since it also has JTAG on board.
Hello andrews
Mik> Has anyone seen the subject diagram?
I came across something similar in the magazine "RadioAmator".
I'll rummage around at home and if I find it, I'll post it...
Hello, All
Has anyone seen the subject diagram?
To check all sorts of LA3, IR23, ID7 and other nonsense.
Interested in something that connects to a computer and has a minimum of buttons...
Like - choosing a microcircuit and testing.
And two indicators - good, not very good.
Of course, it can be used as a separate device.
The searches only led to programmers costing at least $400, and this is for me
nothing.
Hello andrews
and> take stapl-player and write tests on STAPL
from now on in more detail, what kind of thing is STAPL?
Hello andrews
and> You spend about two weeks of pure time.
How long... I haven't played like this! :(
Hello andrews
and> soldered into the board is one thing, then look for "signature analyzer" and
and> another matter for input control.....
We are talking specifically about incoming control.
There are 100 registers, you need to check everything.
Hello, Mikka_A
Mik> there are 100 registers
if all the microcircuits are of the same type and input control, then the circuit is simplified...which
type needs to be controlled?
Hello, Mikka_A
In principle, you can do this if:
1) the microcircuits that are supposed to be tested are included in that socket (by
width);
2) since I don’t have a tool system and haven’t worked with mega8515,
I can write abstractly in C under the pins of the socket (ports attached to it)
Hello andrews
and> if all microcircuits are of the same type and input control, then the circuit
and> simplifies...what type should be controlled?
IR23
TM9
TM8
ID7
TM2
IE2
IE19
LA3
LH1
LI1
this is ideal.
in real life ir23 is the most worrying.
and then in order of importance from top to bottom.
well, you can just throw out the simplest logic... but if for the Coding Guru it’s not
difficult.... :v2_wink2:
Hello andrews
and> In principle, you can do this if:
and> 1) the chips that are supposed to be tested are included in that socket
and> (width);
and> 2) since I do not have an instrumentation system and with mega8515 I do not
and> worked, I can write abstractly in C under the socket pins
and> (ports attached to it)
1. yes included. ZIF panel is universal.
2. Now I’ll ask DeathSoft to post a link to the tool.
(respect to him too, he is also working on this project).
Hello andrews
and> Another option: you make a breadboard with socket zero
and> efforts (narrow) and a cable to the LPT port... but we do everything morally
and> outdated motorolina MC705K1...I still have them from the old days
and> a dozen pieces and a KIKS developer board. You really have to remember
and> its assembler, but fortunately since the heels of projects we have been using it in 93-96.
and> done.
there is such a device.....
http://www.zx.pk.ru/showthread.php?t=3947&page=1
configured and debugged. with zero force bed.
accordingly, atmega is programmed in it naura (soldered
byteblaster, or stk, I don’t remember)
Hello andrews
Another option: you make a breadboard with a zero-effort socket
(narrow) and a cable to the LPT port... but we do everything on an outdated motorolina
MC705K1...I still have about a dozen of them from the old days and a board
developer KIKS. True, you will have to remember its assembler, but fortunately
projects we were on it in 93-96. done.
Hello, Mikka_A
Then the tool is not needed, you need a description of how to implant an additional
the code into his project, and he will build everything to the heap before installing the firmware himself.
If debugging is needed, then you will need both the environment and the hardware.
But there is also a shell on PC, but its sources are needed more (from it it will be clear
how to add the missing functionality and parameter transfer protocol to
controller). And on the controller side, you need a part that supports the protocol with
the other side (and, if there is a multitasking, its description, if not, a description of what
how everything works on the programmer side... sort of like a programmer's manual).
Hello, Mikka_A
If you solder or buy ready-made hardware, I can write the software. Under ready
by hardware I mean a certain KIT with LPC for $30-60 and a JTAG connector for $20
(MT System prices). If you solder yourself, you can choose the least expensive one
LPC controller with a sufficient number of pins or FPGA from Alter (whichever is less
personally preferable for me), and ByteBlaster II. Parts for $20-30, but
problems with boards, cables, etc.
Hello andrews
and> Then this is definitely not for me. Not even seeing what and how was tested
and> relying on the tester developer?
Yes, in fact, all the sources are open, take them and look, and also express them
suggestions/wishes. No one is making any secrets out of this.
Hello andrews
and> Then this is definitely not for me. Not even seeing what and how was tested
and> relying on the tester developer?
and> Employee of numerous St. Petersburg electronic and telephone companies
and> “can’t do this” :)
and> Good luck!
thanks for your participation.
although it’s easy to do this for a computer.
because look what happens - for each mikruhi there is its own algorithm.
but the memory of the controller is not rubber....
how much will fit... and how much...
so maybe you’ll think about it, huh? :v2_wink2:
Hello deathsoft
solder all the sockets into one GS board instead of mikruh
Hello, The Exploited
The> solder all sockets into one GS board instead of mikruh
grhm....
7 ir23.... for 12 boards....
brrr....
a bit much.... =)
Hello, Mikka_A
Mik> for 12 boards...
The> into one
can we read??
-+--
oh, I see you did. what are the problems then?