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Forceware 1.4b1-mod2 on SB6141

ricktendo

Active Member
No, according to post#3 http://www.usbjtag.com/vbforum/showthread.php?t=8532
Confirmed ISP points?;
-SB6121 ISP point = R153 right side
-SB6141 ISP point = pin2 on U7
I would also do as they suggest and put a resistor in between for protection, or better yet use external voltage as this may be much safer.

Edit: looks like you can use the existing resistor on the board https://www.usbjtag.com/vbforum/showthread.php?t=9392
 

xuhue

Member
Thanks, D3m0n and xuhue
Does the SB6141 have the same R362 ISP point as the SB6120 on the back board? Which script (*.bcs) is suitable for the software of BlackcatUSB?
Just connect your pin with my layout it will detect the chip i dont use any power for that and script same as sb6120
 

k045104

Member
Thanks, xuhue
It seems that there is no more space to use the ISP point to offer the VCC on pin 2 by the time I attach the clip on the SPI chip.
 

ricktendo

Active Member
Just do as we suggest, do not power on the modem and use external 3.3v... Or if you have board rev2.2 use the VCC to power the chip.
 

k045104

Member
Just do as we suggest, do not power on the modem and use external 3.3v... Or if you have board rev2.2 use the VCC to power the chip.
ricktendo,
I remember powering on the modem is needed when flashing the SB6120 w/ BCUSB. Just would like to confirm...Can SB6141 be flashed without connecting with the power?
Another question is, the SB6141 has R153 on right side and the U7 chip on the back of the modem, as well. I try both ways to detect the chip; however, the BCUSB software can't find any chip. How should I do for the next step?
 

k045104

Member
Hi Xuhue,
You said if I use the FCUSB, then I don't need to power on the modem. I powered on the modem and used USBJTAG with the ISP line jumper to flash the SB6120 before. If I use the FCUSB to flash the SB6141, is it a must to find out the ISP point beforehand? Thanks
 

ricktendo

Active Member
If you have the pcb v2.2 you do not need to power on the modem or use the ISP point, just connect the flashcat as per the manual and it should just read it

Watch how I dump this SPI from a EdgeSwitch it is the exact same process

 

k045104

Member
pin 1 fcusb to pin 10
pin 2 fcusb to pin 1
pin 4 fcusb to pin 8
pin 6 fcusb to pin 15
pin 8 fcusb to pin 16
pin 10 fcusb to pin 7
Hi xuhue,
I get trouble with the pin layout you posted as there are something different from the page 14 of the attached manaual.
 

Attachments

  • FlashcatUSB_Manual.pdf
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Luig

New Member
Is there an update for the script. I'm trying to load it using the current FlashCat software and I get error on line 9, unknown function or command U
 

Luig

New Member
Ok, so I tried to update the script myself and I don't get any syntax errors anymore. Now I get "JTAG.MemoryInit: failed to create new memory device interface". I set it with these params : "JTAG.MemoryInit(“SPI”,1)" Not sure if I need to change the 2nd param to something else or my wiring is just wrong?

Current script source: https://pastebin.com/a8rymBmf
 

Luig

New Member
Sorry for the triple post. Just tested making a clone using an sb6141 I had with forceware on it and it worked. So I can read and write to the chip just fine so it's definitely a script issue. I'm going to try to make a script using the newer SB 6120 script that comes with the software as a template when I have time. If someone has a working one it would be much appreciated it.
 

k045104

Member
Hi Ricktendo,
I've purchased and received a new FCUSB PCB2.2 from the Embedded Computer. Since the jumper has six wires, I omit to connect the WP# and Hold on pin 2 and pin 3. So, I connect them following from the manual.

1 fcusb to 10
6 fcusb to 7
7 fcusb to 16
8 fcusb to 15
9 fcusb to 8
10 fcusb to 2

I connect the FCUSB with the SB6141 via the test clip. The software (Build 550) shows my FCUSB can't detect the chip. Do you know what the problem is?

P.S. As the PCB2.2 provides the VCC to activate the chip, I don't power on the SB6141.

Thank you~
 

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  • FCUSB.gif
    FCUSB.gif
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ricktendo

Active Member
Like I mention in my video, WP# and HOLD are not always needed but it does not hurt to include these, I also mention that you may need to mess a bit more with the clip: wiggle it, push it down, squeeze it, etc.

What brand clip or grabbers are you using to connect the FCUSB to the SPI?
 

k045104

Member
Well, I use the 3M SOTC 16 ways test clip which I used it with BCUSB before. Can I confirm are the pinout I listed correct?
 

ricktendo

Active Member
I cant make sense of your pin numbers, I dont know how or in what order you are counting... Just make sure it matches the manual.
 
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