Blackcat cable wtih 74LS244

[uglyface]

Thanks for your support kklavaca10!
Are you sure that this diagram really works? Have you made any cable with this diagram? Sorry but it´s really driving me crazy.
The only difference that I see is that the jtag pins 2 4 6 8 and 10 are internally connected, so  I only have grounded one of them.Its that right?
I used some small brown resistors like the last one of this pic
I already made a test with the multimeter and everything seems to work. I have two SN74LS244n and none works.Its there a way to test the IC?
I will destroy everything and remake it step by step.

Thank you very much!
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[kklavaca10]

Firstly, I have used this schematic for my cable, so it is proven 100%.

If you have all pins 2,4,6,8,10 connected, you only need to ground one of them. But remember to connect all the pins in your circuit and in the modem.

It would be very strange if both IC were badly, so I would discard any problem with the ICs.

Try to test the circuit in other computer, and check again the parallel port parameters in the computer.

[uglyface]

IT WORKED!!!
Many, many thanks to you all for the support, and specially to kklavaca10! after all the problem was on me!! When I saw the DB25 pinout I thought it was from outside, but it was from inside, so what I had to do was just to change the pins and worked perfectly. I am now online with it,  it's there any problem to surf with the blackcat cable connected? One more question, what is the bootloader? Do I have to change it whn I change the firmware. I know what to upgrade to sigma-x 1.06 rc4, which bootloader do  install? I have TCNiSO_Bootloader_v2.5.91.bin, it will work?

Once again sincerely thanks!

[uglyface]

Ok, I have made a way: installed sigma-x 1.05 with bootloader 2.5.9 just to not open the modem each time to change the mac. And it works perfect!


Greetings and see you around - next task - unlock digital cable tv!!! any links??

Saludo!

[kklavaca10]

Hello uglyface,

I am glad to hear your news.

You should have made a  backup from your flash, bootloader and firmware before starting to flash de modem. You never know what could happen.

I thought there was no Sigma-X 1.05 firmware, are you sure you are testing this firmware.

Regarding the digital tv, what kind of receiver has your cable provider ??

[uglyface]

Yes, I am sure it is 1.05, it comes on top of the Page.

Can you tell me a way to see which config file is the modem using, because

on the sigma main page it only shows the default config file from ISP (saw

this on tcniso). I already changed the config but would like to know if the

modem took that.

About tv: I will check which encription and will post on the other forum.

Tks

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[kklavaca10]

Sorry, I mistook. The last version I know is Sigma 1.06RC4.

I don't use sigma firmware, so I can not help you in your question.

Regards.

[malex]

hi ,I am Malex ,the 74LS244 en si is one 74LS245....

pin 1:  DR  --------Vcc    pin20
pin 2:  A0  -        - E(con raya encima)pin 19
pin 3:  A1  -        -B0     pin18
pin 4:  A2  -        -B1     pin17
pin 5:  A3  -        -B2     pin16
pin 6:  A4  -        -B3     pin15
pin 7:  A5  -        -B4    pin14
pin 8:  A6  -        -B5    pin13
pin 9:  A7  -        -B6    pin12
pin10: GND--------B7    pin11


okas..

[darik]

Hi guys,

Is this the schematic you are talking about?  viewtopic.php?f=1&t=2407&p=14704&hilit=blackcat+schematic#p14697


Thanks