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bpm:wwavusbepp

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Background

At one point they sold an upgrade board to convert older programmers to USB. Basically what it boils down to is:

  • The adapter should work for BP-1400, BP-1600, BP-1700, and (some?) EPP series programmers
  • You can swap it from one unit to another (ex: swap from BP-1410 to BP-1600 to upgrade an old unit)
  • Units known to ship with this adapter
    • BP-1410 (probably BP-1610 and BP-1710 as well)
    • Silicon Sculptor 3
  • The adapter is no longer offered as an upgrade for the BP-1×00 models

http://www3.bpmicro.com/web/bphome.nsf/(web.news)/FB83F285AEE1E5BB862570670047820E

http://www3.bpmmicro.com/web/helpandsupport.nsf/69f301ee4e15195486256fcf0062c2eb/c4c2dac08101795c8625703e0062bde8/$FILE/Programmer Site USB 2.0 Adapter FAQ.doc

  • 2.4 Mb/s to 9.0 Mb/s potential speed upgrade
  • 14. What programming site models will this work with?
    • All EPP programmers. This encompasses 6th-gen and 7th-gen.
    • This may be a different adapter board
  • 17. About how much will these adapters cost to make?
    • About $20 in materials
  • 21. Why can’t I just buy an off-the-shelf USB-Parallel port adapter and use that?
    • There is no formal specification as to what you must do with these signals. Printer makers adhere to an informal standard as to what each of these signals does, but such functionality isn’t suitable for device programmers.
    • Even if the vendor-defined signals didn’t get in the way, the performance of any off-the-shelf adapter would be horrible (much worse than parallel port)
  • 20. What are the Macola part numbers of the site adapter and the hub?
    • Site Adapter: WWAVUSBEPP
    • Hub: WWAVUSBHUB

https://www.febo.com/pipermail/time-nuts/2013-January/073818.html

>> All I have is an Actel Silicon Sculptor 3, also made by BP Micro,>> that looks like the BP-1710 (with the 'START' button) but connects>> via a USB port.  On the main PCB of the BP-1600 and the SS3 are two,>> 2 row, 26 pin, connectors, one toward the back edge of the PCB toward>> the back panel and the other just inside the first connector.  The>> inside connector directly connects to the parallel port on the back>> of the BP-1600.  On the SS3, there is a small PCB that plugs into the>> same connector, takes a power input, and also has 6 pin connections>> to the other 26 pin connector.  This small PCB has a USB connector>> that is> connected to the back of the SS3 as the USB connection.>>

Other:

  • It's part number is WWAVUSBEPP

From another doc:

> Automated Programming System users can determine if the handler is configured with the USB to EPP adapter through the PC Device Manager. If “BP Microsystems SPC Interface” is present as shown in the object below, then the USB to EPP adapter is already installed. If not, please contact BPM Microsystems Sales to order an upgrade kit part number: WHARUSBSPCKIT.

Programmer compatibility

Trying a 1600 with the adapter under 5.33.0 (last version to support parallel) worked fine. However, under 5.47.0 (newest release version as of today):

I analyzed the USB packet traces for kicks to see what was happening. There are some minor differences (ex: later software chunks firmware load up smaller) but otherwise they are identical in purpose. However, the newer software seems to just give up at one point. My guess is that they removed the 1600 handling code, not just the parallel interface to it.

PCB overview

top.jpgbtm.jpg

Above:

  • ASSY No. WWAVUSBEPP
  • EPCBD03181 Rev C

Where

btm_l.jpg

NOTE: a number of the component values above are best guesses. In particular:

  • R6/R7 divider
  • Most small capacitors. T13/T17 are recommended values from cypress datasheet
  • U3 is best guess

More info here: https://siliconpr0n.org/media/bpm/WWAVUSBEPP/

2015-04-24: tried plugging the adapter from my BP-1410 into my BP-1600 and it worked!

U1 (CY7C68013 FX2 MCU, TRM):

CY7C68013-
56LFC 0421
E 04
CYP 626381
KOR

U2 (?):

LT 515
176333

U3 (?):



U4 (8KB I2C EEPROM):

24C64W6
ST K414B

Pinout

Pin Dbg color MCU pin Function PU/PD Note
1 Black 30: CTL1/FLAGB
2 Black 29: CTL0/FLAGA
3 Brown 18: PB0/FD0
4 Brown 34: PA1/INT1# PU
5 Red 19: FB1/FD1
6 Red 38: PA5/FIFOADR1
7 Orange 20: FB2/FD2
8 Orange 31: CTL2/FLAGC
9 Yellow 21: PB3/FD3
10 Yellow N/A GND
11 Green 22: PB4/FD4
12 Green N/A GND
13 Blue 23: PB5:FD5
14 Blue N/A GND
15 Violet 24: PB6/FD6
16 Violet N/A GND
17 Black 25: PB7/FD7
18 N/C N/A GND
19 Brown 33: PA0/INT0# PU
20 N/C N/A GND
21 Red 1: RDY0/SLRD PU
22 N/C N/A GND
23 Orange 2: RDY1/SLWR
24 N/C N/A GND
25 Yellow 35: AP2/SLOE
26 N/C N/A GND

Resistor placed sub-optimially. is there another pullup?

17 signal pins, 16 LA channels. Arbitrarily drop pin 8 in favor of hooking everything up linearly.

2015-09-27

Project goal: understand how voltages/currents are read out

Phase 1: LA

Ran into some signal integrity issues setting up capture. Had to do short wires. More info:

Setup to trigger on J2.1. Triggered during startup sequence reading serial number etc

Discovered Saleae only support 8/16 channels with USB 2. Ordered USB3 expresscard adapter.

SN:

Above: 1-8 at startup

Above: after hitting don't register. 02_post_sn.lda

Above: after hitting okay that's in unsupported mode

Above: software started but idle

Above: voltage monitoring. 03_voltage.lda

Above also shows that signals are at least in the 1-1.25 MHz range. I'm currently sampling at 6.25 MS/s

Phase 2: USB cap/replay

Continue above project by toying with USB driver. Previously had some issue with certain response packet getting lost as it made its way back to the host (kernel capture: lost, libusb: lost, USB analyzer: received). This issue is what prompted this more detailed analysis. To that end, try to work in C to enable getting libusb help diagnosing the problem.

2015-09-29

Rewire Saleae cleaner. Confirmed that can select up to 500 MS/s with 2 channels with analog turned off

USB

  • VID: 14b9
  • PID: 0001

Looks like bp1410_sn.py (bfb0464a) demonstrates the issue I was having:

uvscada/bpm$ python bp1410_sn.py 
Scanning for devices...
Found device
Bus 001 Device 006: ID 14b9:0001
val 157: 08160100
val 165: 000000
bulk read 167
Traceback (most recent call last):
  File "bp1410_sn.py", line 689, in <module>
    replay(dev)
  File "bp1410_sn.py", line 495, in replay
    buff = bulkRead(0x86, 0x0200, timeout=500)
  File "bp1410_sn.py", line 276, in bulkRead
    return dev.bulkRead(endpoint, length, timeout=timeout)
  File "/usr/local/lib/python2.7/dist-packages/usb1.py", line 1174, in bulkRead
    transferred = self._bulkTransfer(endpoint, data, length, timeout)
  File "/usr/local/lib/python2.7/dist-packages/usb1.py", line 1144, in _bulkTransfer
    raise libusb1.USBError(result)
libusb1.USBError: LIBUSB_ERROR_TIMEOUT [-7]

Step through code with LA to better understand whats going on

Open question: should I be renumerating?

test file: la_sn.py (based on bp1410_sn.py)

packet 147/148

LA: seeing some small transients. They are repeatable. Is this edge cross talk or actual signals? From:

# Generated from packet 147/148
buff = controlRead(0xC0, 0xB0, 0x0000, 0x0000, 4096)
validate_read("\x00\x00\x00", buff, "packet 147/148")

packet 157/158

Was not able to get any LA activity from this (CH0, 4 random channels):

# Generated from packet 157/158
buff = bulkRead(0x86, 0x0200)
# NOTE:: req max 512 but got 4
validate_read("\x08\x16\x01\x00", buff, "packet 148.5")

packet 149-154

Endpoint reset (packet 149-154) did not trigger CH0

packet 165/166

# Generated from packet 165/166
buff = controlRead(0xC0, 0xB0, 0x0000, 0x0000, 4096)
print 'val 165: %s' % binascii.hexlify(buff)
# NOTE:: req max 4096 but got 3
validate_read("\x00\x00\x00", buff, "packet 165/166")

Looks exactly like earlier but USB data is different

packet 167/168

# Generated from packet 167/168
buff = bulkRead(0x86, 0x0200, timeout=500)
# NOTE:: req max 512 but got 4
validate_read("\x08\x16\x01\x00", buff, "packet 167/168")

No LA traffic observed. The packet that gets lost

S/N capture

From win SW

01_sn.logicdata

My S/N: 34346

  • 0x862a
  • 0b1000011000101010

Next steps

Generate C version and double check data flow. Consider getting LA trace from Windows SW working correctly to better understand whats going on

bpm/wwavusbepp.1443597370.txt.gz · Last modified: 2015/09/30 07:16 by mcmaster