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Great! Thank you Norberto.
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Thank you Norberto. Seasons Greetings to all, and may you be fortunate enough to arise to a snow-covered landscape on Christmas Day :-}.
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of norberto.collado koyado.com
Sent: Friday, December 24, 2021 1:44 AM
To: se...@googlegroups.com
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
I have been working on this board schematics as they were not linked to the board layout and did not want to make a layout mistake by adding some improvements. I just finalized it and will order boards after X-mas is over.
Happy Holidays!
Norberto
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of norberto.collado koyado.com
Sent: Wednesday, December 8, 2021 7:40 PM
To: SEBHC List <se...@googlegroups.com>
Subject: [sebhc] Re: H89-USB-Serial order list.
Thanks and snow is welcome!
😊
From: "se...@googlegroups.com" <se...@googlegroups.com> on behalf of <pbi...@gmail.com>
Reply-To: "se...@googlegroups.com" <se...@googlegroups.com>
Date: Thursday, December 23, 2021 at 11:17 PM
To: "se...@googlegroups.com" <se...@googlegroups.com>
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So the space for the Sparkfun FT245 breakout board could be eliminated if you like. The board was retired some time ago
https://www.sparkfun.com/products/retired/7841
may not be worth the effort though. Your call.
Longer version:
At the time these boards (this one and the companion H8 board) were designed the group was experimenting with two approaches to USB connectivity. The 24-pin socket to the right holds an FTDI VDIP1 which can do USB host protocol, allowing for flash drives, printers and other devices to connect. In this mode the H8/H89 is the USB “host” with the heavy lifting of the USB protocols all built into the processor on the VDIP1. I wrote some simple utilities to copy files to/from the flash drive (I’m currently baselining/documenting that code – more soon on that!. Earlier versions of my code are on Norberto’s site http://koyado.com/Heathkit/H-8_USB.html)
The FT245 breakout board sported an FT245RL chip which implements the “slave” side of the USB protocol. In this mode the H8/H89 must be plugged into a host computer. The host sees the H8/89 essentially the same way it would a disk drive or flash drive. All of the file transfer functionality is implemented in software on the PC side. Dan Emrick and Chris Elmquist did some innovative work with this: http://danemricksite.net/HeathkitProjects.php#USB/H8D
The Sparkfun breakout board is no longer available but the VDIP1 is still available (Mouser, Digikey…). FTDI has also come out with a newer version of the VDIP based on their VNC2 chip series, but we’ve seen little compelling reason to change our designs.
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of norberto.collado koyado.com
Sent: Friday, December 24, 2021 1:44 AM
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/BN7PR01MB3844B9B33283B2D991A90580F77F9%40BN7PR01MB3844.prod.exchangelabs.com.
I thought the FT245R presents a "tty device" to the host PC. It is strictly serial communications, as far as I can tell. What you do with that serial communications is another matter, but the PC sees a COM/TTY device, not storage.
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You can still buy such board in Florida from:
https://www.kr4.us/breakout-board-for-ft245rl-usb-to-fifo.html
Norberto
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/41f34dd2-0d3c-0d08-33b9-becf6ce8b21f%40gmail.com.
I was planning to add support for the FT245R as another serial
port, so that we don't lose the "modem" port at 330Q when the
VDIP1 is installed. But, it seems we don't consistently have an
FT245R with every VDIP1 (i.e. new Z80 CPU boards only have VDIP1)
so it didn't make as much sense to do that. I'm not suggesting any
changes about that, but it was a use I considered, briefly. The
FT245R looks nothing like an INS8250, but it is pretty simple and
so could be put into drivers as a one-off. Given the INS8250 has a
"scratch pad" register, one could possibly even auto-detect
whether 330Q is an INS8250 or FT245R.
But if the part is obsolete, it may make even less sense. Of
course, just because SparkFun no longer makes it doesn't mean FTDI
no longer makes it.
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/47DFE1F2-5B8D-4A90-89ED-CD782CD3B8AD%40koyado.com.
For the H8, should we add the FT245R on a tiny board? Or should I added it to the single H17 controller which is almost done? The single H17 controller has the VDIP1 already installed.
Thanks,
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/c48cc882-c48a-b20d-96ad-ed122c979ee9%40gmail.com.
I just found out that this part is out of stock. So, it is not available. I think it makes sense to add a tiny board with surface mount parts if we agree that is needed.
Norberto
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/22F0E230-F3A7-4D9D-91B1-BAD5CD684EE7%40koyado.com.
Digikey has 0 in stock. Let’s put this board to rest. I will take it out from the H89-Serial-USB board unless there is objection.
Norby
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/47972A2E-F20E-40A6-82EF-E41CA237D964%40koyado.com.
Seems to be in-stock at https://www.canakit.com/breakout-board-for-ft245rl-usb-to-fifo-bob-07841.html
Alternatively, replace the current DIP-style footprint with the DIL end-connector style that’s readily available on eBay.
Example: https://www.ebay.com/itm/384504988953
Also available at, e.g.,: https://pmdway.com/products/ft245-usb-to-parallel-fifo-breakout-board
My vote goes to keeping the FT245RL but with the DIL end-connector footprint. The pin-out is specified on the PCB:
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/B4519360-9694-449C-9028-6792B7696A21%40koyado.com.
Example connector: https://www.taydaelectronics.com/2x10-pin-2-54mm-dounle-row-right-angle-female-pin-header.html
Sparkfun footprint = 1.5x0.92" = 38mm x 24mm
BOB footprint is 46mm x 30mm. Extend length for the right-angle DIL socket.
So it’s not a slam-dunk to adopt the replacement board from the perspective of board layout.
From: pbi...@gmail.com
Sent: Saturday, December 25, 2021 2:05 AM
To: se...@googlegroups.com
Subject: RE: [sebhc] Re: H89-USB-Serial order list.
Seems to be in-stock at https://www.canakit.com/breakout-board-for-ft245rl-usb-to-fifo-bob-07841.html
Alternatively, replace the current DIP-style footprint with the DIL end-connector style that’s readily available on eBay.
Example: https://www.ebay.com/itm/384504988953
Also available at, e.g.,: https://pmdway.com/products/ft245-usb-to-parallel-fifo-breakout-board
My vote goes to keeping the FT245RL but with the DIL end-connector footprint. The pin-out is specified on the PCB:
-----
I ordered one from pmdway as I need to measure board on the pcb along with the VDIP1.
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Thanks Dan and Happy Holidays to all as well!
Norberto
From: "se...@googlegroups.com" <se...@googlegroups.com> on behalf of Dan Emrick <dsem...@gmail.com>
Reply-To: "se...@googlegroups.com" <se...@googlegroups.com>
Date: Saturday, December 25, 2021 at 8:46 AM
To: "se...@googlegroups.com" <se...@googlegroups.com>
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
Not sure if I really have a place in this discussion given that I do not have an H8. Even so, I use the FT245 capability of the H89 USB-Serial board in my H89 and my H89-SBC. Of course, I'm just a little prejudiced having worked with Chris and others on the HDOS driver early on. The PC side is a custom program that makes H8D images available (currently up to 4) for mounting via the FT245 interface just as a spinning floppy would be. I use Linux but experimented in the past with a version for MS Windows. It's written with the Qt IDE.
My two cents: I support Paul's recommendation to keep the capability even if it requires a modification to handle the different B/O board configuration (which I did use in early H89 prototypes).
Before I forget, thank you, Norberto, for all that you've done and continue to do to preserve and enhance these beloved old boxes and our enjoyment of them.
Merry Christmas and Happy Holidays to all.
Dan
On Saturday, December 25, 2021 at 2:45:42 AM UTC-5 Norby wrote:
I ordered one from pmdway as I need to measure board on the pcb along with the VDIP1.
Thanks,
Norberto
From: "se...@googlegroups.com" <se...@googlegroups.com> on behalf of <pbi...@gmail.com>
Reply-To: "se...@googlegroups.com" <se...@googlegroups.com>
Date: Friday, December 24, 2021 at 11:18 PM
To: "se...@googlegroups.com" <se...@googlegroups.com>
Subject: RE: [sebhc] Re: H89-USB-Serial order list.
Example connector: https://www.taydaelectronics.com/2x10-pin-2-54mm-dounle-row-right-angle-female-pin-header.html
Sparkfun footprint = 1.5x0.92" = 38mm x 24mm
BOB footprint is 46mm x 30mm. Extend length for the right-angle DIL socket.
So it’s not a slam-dunk to adopt the replacement board from the perspective of board layout.
From: pbi...@gmail.com
Sent: Saturday, December 25, 2021 2:05 AM
To: se...@googlegroups.com
Subject: RE: [sebhc] Re: H89-USB-Serial order list.
Seems to be in-stock at https://www.canakit.com/breakout-board-for-ft245rl-usb-to-fifo-bob-07841.html
Alternatively, replace the current DIP-style footprint with the DIL end-connector style that’s readily available on eBay.
Example: https://www.ebay.com/itm/384504988953
Also available at, e.g.,: https://pmdway.com/products/ft245-usb-to-parallel-fifo-breakout-board
My vote goes to keeping the FT245RL but with the DIL end-connector footprint. The pin-out is specified on the PCB:
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of Norberto Collado
Sent: Friday, December 24, 2021 9:21 PM
To: se...@googlegroups.com
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
Digikey has 0 in stock. Let’s put this board to rest. I will take it out from the H89-Serial-USB board unless there is objection.
Norby
From: "se...@googlegroups.com" <se...@googlegroups.com> on behalf of Norberto Collado <norberto...@koyado.com>
Reply-To: "se...@googlegroups.com" <se...@googlegroups.com>
Date: Friday, December 24, 2021 at 6:09 PM
To: "se...@googlegroups.com" <se...@googlegroups.com>
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
I just found out that this part is out of stock. So, it is not available. I think it makes sense to add a tiny board with surface mount parts if we agree that is needed.
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Also, I’m going to move the logic around so that I can get more free real state by using the same layout as in the MMS Corvus board. See attached picture.
The USART’s on the right and the VDIP1 and RT245R on the left.
Thanks,
Norberto
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/5EF5AB0B-F94C-4DD6-B24A-BB46181EDC89%40koyado.com.
Are the cable-tie holes misaligned? Maybe add a couple more?
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I will fixed that once I get the FT245R.
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Hello Norberto,
I am interested in purchasing this H89 Serial Board when it is placed into production. As a side note, I am really impressed with your work and dedication.
Thanks,
Pat OConnor
Sent from Mail for Windows
From: norberto.collado koyado.com
Sent: Monday, January 10, 2022 8:37 PM
To: se...@googlegroups.com
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
I did receive the FT245R breakout board. It took about 11 days to get. I will play with the parts placement to figure out cable and parts best location. I'm still waiting for the 2x 10 pin connector which I forgot to order last month. It should be here within the two weeks. Once I get the 2x 10 pin female connector, I should be able to order some boards to check the layout and board operations. I do not expect any issues as it is based on previous board schematics.
I will work with Todd to fulfill the needs for those that requested such board once I get a fully operational board.
Norberto
From: se...@googlegroups.com <se...@googlegroups.com> on behalf of norberto.collado koyado.com <norberto...@koyado.com>
Sent: Tuesday, December 28, 2021 9:50 PM
To: se...@googlegroups.com <se...@googlegroups.com>
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
Almost done with the board updates. I cannot finalize until I get the FT245R breakout board to verify placement along with the VDIP1 and secondary USB port.
From: se...@googlegroups.com <se...@googlegroups.com> on behalf of Norberto Collado <norberto...@koyado.com>
Sent: Saturday, December 25, 2021 5:05 PM
To: se...@googlegroups.com <se...@googlegroups.com>
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
Also, I’m going to move the logic around so that I can get more free real state by using the same layout as in the MMS Corvus board. See attached picture.
The USART’s on the right and the VDIP1 and RT245R on the left.
So it’s not a slam-dunk to adopt the replacement board from the perspective of board layout.
From: pbi...@gmail.com
Sent: Saturday, December 25, 2021 2:05 AM
To: se...@googlegroups.com
Subject: RE: [sebhc] Re: H89-USB-Serial order list.
Seems to be in-stock at https://www.canakit.com/breakout-board-for-ft245rl-usb-to-fifo-bob-07841.html
Alternatively, replace the current DIP-style footprint with the DIL end-connector style that’s readily available on eBay.
Example: https://www.ebay.com/itm/384504988953
Also available at, e.g.,: https://pmdway.com/products/ft245-usb-to-parallel-fifo-breakout-board
My vote goes to keeping the FT245RL but with the DIL end-connector footprint. The pin-out is specified on the PCB:
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of Norberto Collado
Sent: Friday, December 24, 2021 9:21 PM
To: se...@googlegroups.com
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
Digikey has 0 in stock. Let’s put this board to rest. I will take it out from the H89-Serial-USB board unless there is objection.
At the time these boards (this one and the companion H8 board) were designed the group was experimenting with two approaches to USB connectivity. The 24-pin socket to the right holds an FTDI VDIP1 which can do USB host protocol, allowing for flash drives, printers and other devices to connect. In this mode the H8/H89 is the USB “host†with the heavy lifting of the USB protocols all built into the processor on the VDIP1. I wrote some simple utilities to copy files to/from the flash drive (I’m currently baselining/documenting that code – more soon on that!. Earlier versions of my code are on Norberto’s site http://koyado.com/Heathkit/H-8_USB.html)
The FT245 breakout board sported an FT245RL chip which implements the “slave†side of the USB protocol. In this mode the H8/H89 must be plugged into a host computer. The host sees the H8/89 essentially the same way it would a disk drive or flash drive. All of the file transfer functionality is implemented in software on the PC side. Dan Emrick and Chris Elmquist did some innovative work with this: http://danemricksite.net/HeathkitProjects.php#USB/H8D
The Sparkfun breakout board is no longer available but the VDIP1 is still available (Mouser, Digikey…). FTDI has also come out with a newer version of the VDIP based on their VNC2 chip series, but we’ve seen little compelling reason to change our designs.
-----
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Thanks Pat!
Did some measurements and for now it looks like this until I get the 2x10 pin female connector. Also I added the 3.68MHz osc to run the serial ports at a higher baud rate as an option.
Norberto
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/84161A8E-A9C4-4F05-BCB3-68328B79AD38%40hxcore.ol.
On Jan 11, 2022, at 2:33 AM, Norberto Collado <norberto...@koyado.com> wrote:
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/3E249DCA-2C8D-4805-8008-0785311C176B%40koyado.com.
I did a CP/NET client for the FT245R, although I'm not sure if anyone has tried it out on a real H8/H89.
Norberto and I also kicked around an idea for a "major" expansion
to the H89, picture attached. We didn't get any further than this
drawing (based on some clearance experiments by Norberto), but it
is looking like it would work.
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/0CE4D60E-E6B7-4F14-AF19-A312E226BC6A%40gmail.com.
Received today the 2x10 pin female connector and everything looked fine until I put the FT245R board on a real wire-wrap board. This board was design to be attached to the outside of the board and not on top of the board. The solder underneath the board along with the pins for the 2x10 pin male header, will force the board to lifted at an angle when inserted on a wire-wrap board. The solution will be to cut a hole underneath the board to released such pressure.
Here are some photos which described better the issue. I’m open to other ideas to fix this issue. ☹
Looks good so far! 😊
Wrong position:☹
Correct position: 😊
Solution: Cut a hole on top of the board. 😊
Thanks,
Norberto
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/3E249DCA-2C8D-4805-8008-0785311C176B%40koyado.com.
On Jan 14, 2022, at 2:53 AM, Norberto Collado <norberto...@koyado.com> wrote:
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/3F98514F-3869-4A91-804D-D084E9E82EB4%40koyado.com.
Not to kick up any more dust on the matter, but there is this module:
https://www.mouser.com/ProductDetail/FTDI/UM245R?qs=Xb8IjHhkxj4TWAlYgWlsig%3D%3D
Which is a more conventional mount, albeit more expensive (2.5x).
As Glenn said, might be worth contacting WaveShare and see if they can supply without the header mounted. That was a nice thing about AdaFruit, at least in my experience - they ship their modules with the header separate.
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/0B06F66E-244A-4A0F-AE62-7856DC4E6421%40gmail.com.
Can you first use a 2x10 straight DIL header (or two SIP headers side-by-side), and then plug the right-angle 2x10 DIL connector into that?
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/3F98514F-3869-4A91-804D-D084E9E82EB4%40koyado.com.
The FTDI board might also have a bit more longevity. I wonder if the WaveShare board will disappear after a year just like the Sparkfun one did? For that matter, will WaveShare itself be around long term? The FTDI VDIP1 board has been available for a very long time now…
I know we’ve mostly stuck to through-hole construction on our boards, but another option could be to surface mount the ft245 chip on the board… the Rev 1.1 USB board for the H8 has this option
http://koyado.com/Heathkit/H-8_USB_files/H8-USB%20CONTROLLER%20V1_0-1.pdf
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/f796ca8f-7d3f-2daa-5a28-483ae9e87659%40gmail.com.
I also noticed there is a QFN package for the chip, so we could use a socket I think. But, digiKey didn't have the chips in stock - either package.
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On Jan 14, 2022, at 4:42 AM, Douglas Miller <durga...@gmail.com> wrote:
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/be37d444-8b70-5cd7-5422-b4c9c8c78e34%40gmail.com.
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And I may be wrong but I suspect the majority of users will be more focused on the VDIP USB solution, so not every board will need the FT245 installed. Good idea to inquire about factory install.
I’ve recently become less leary of SMT components. I notice even some of the hobby magazines are featuring projects with SMT (e.g. Silicon Chip [Australia]). I got a lesson in the basics from the guy at the next booth from us at VCF. I guess PC board mfgrs can also provide a solder/flux mask to help with parts placement and then you pop the board into a modified toaster oven. I know I’m oversimplifying, and many of you out there are undoubtedly expert at this. Still, we likely won’t be able to rely forever on through-hole technology and breakout boards…
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Encouraging support from both of you. thanks guys!
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of Mitchell Smith
Sent: Saturday, January 15, 2022 12:58 AM
To: SEBHC <se...@googlegroups.com>
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Are we going to do the H89 USB/serial card order like the others lately? Todd Goodman will have a batch made up and then post a note here?
If so no need to orchestrate a “pre order” list. just wait for the announcement from Todd… is that our process ?
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of Roland Langfeld
Sent: Sunday, January 16, 2022 10:37 AM
To: SEBHC <se...@googlegroups.com>
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Almost done with the board updates. I cannot finalize until I get the FT245R breakout board to verify placement along with the VDIP1 and secondary USB port.
From: se...@googlegroups.com <se...@googlegroups.com> on behalf of Norberto Collado <norberto...@koyado.com>
Sent: Saturday, December 25, 2021 5:05 PM
To: se...@googlegroups.com <se...@googlegroups.com>
Subject: Re: [sebhc] Re: H89-USB-Serial order list.Also, I’m going to move the logic around so that I can get more free real state by using the same layout as in the MMS Corvus board. See attached picture.
The USART’s on the right and the VDIP1 and RT245R on the left.
So it’s not a slam-dunk to adopt the replacement board from the perspective of board layout.
From: pbi...@gmail.com
Sent: Saturday, December 25, 2021 2:05 AM
To: se...@googlegroups.com
Subject: RE: [sebhc] Re: H89-USB-Serial order list.
Seems to be in-stock at https://www.canakit.com/breakout-board-for-ft245rl-usb-to-fifo-bob-07841.html
Alternatively, replace the current DIP-style footprint with the DIL end-connector style that’s readily available on eBay.
Example: https://www.ebay.com/itm/384504988953
Also available at, e.g.,: https://pmdway.com/products/ft245-usb-to-parallel-fifo-breakout-board
My vote goes to keeping the FT245RL but with the DIL end-connector footprint. The pin-out is specified on the PCB:
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of Norberto Collado
Sent: Friday, December 24, 2021 9:21 PM
To: se...@googlegroups.com
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
Digikey has 0 in stock. Let’s put this board to rest. I will take it out from the H89-Serial-USB board unless there is objection.
At the time these boards (this one and the companion H8 board) were designed the group was experimenting with two approaches to USB connectivity. The 24-pin socket to the right holds an FTDI VDIP1 which can do USB host protocol, allowing for flash drives, printers and other devices to connect. In this mode the H8/H89 is the USB “host” with the heavy lifting of the USB protocols all built into the processor on the VDIP1. I wrote some simple utilities to copy files to/from the flash drive (I’m currently baselining/documenting that code – more soon on that!. Earlier versions of my code are on Norberto’s site http://koyado.com/Heathkit/H-8_USB.html)
The FT245 breakout board sported an FT245RL chip which implements the “slave” side of the USB protocol. In this mode the H8/H89 must be plugged into a host computer. The host sees the H8/89 essentially the same way it would a disk drive or flash drive. All of the file transfer functionality is implemented in software on the PC side. Dan Emrick and Chris Elmquist did some innovative work with this: http://danemricksite.net/HeathkitProjects.php#USB/H8D
The Sparkfun breakout board is no longer available but the VDIP1 is still available (Mouser, Digikey…). FTDI has also come out with a newer version of the VDIP based on their VNC2 chip series, but we’ve seen little compelling reason to change our designs.
- Glenn
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of norberto.collado koyado.com
Sent: Friday, December 24, 2021 1:44 AM
To: se...@googlegroups.com
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
I have been working on this board schematics as they were not linked to the board layout and did not want to make a layout mistake by adding some improvements. I just finalized it and will order boards after X-mas is over.
Happy Holidays!
Norberto
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Todd is the man! I started a list for a few boards, but the list is now bigger, so we need Todd’s help.
Norby
From: "se...@googlegroups.com" <se...@googlegroups.com> on behalf of Glenn Roberts <glenn.f...@gmail.com>
Reply-To: "se...@googlegroups.com" <se...@googlegroups.com>
Date: Sunday, January 16, 2022 at 11:24 AM
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Great! I'm on deck and will order when I hear from Norberto that it's ready to go.
I'll order enough to try to reduce the cost and have them on hand for anyone looking for one in the future.
Todd
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/CA8606B9-F33D-4477-87E4-D3A3D37F8B0C%40koyado.com.
Thanks Todd!
After testing different approaches, I decided to go with the 3 sided opening as suggested by Steve Shumaker. I think I have the main components in the right position, so I shall complete the layout this week.
You can use either use the FT245R breakout board with the 10-pin connector or the surface mount part with the USB-A connector. Once the USB-A male connector is installed, you cannot use the breakout board. I will suggest to use the breakout board with the 10-pin connector and when they go obsolete you can switch to the surface mount part if needed.
Here is a distorted picture of final board.
Thanks,
Norberto
Norberto mentions the USB A connector – here’s a little more info.
The FTDI VDIP-1 controller board that we have used from day 1 on these boards includes an ability to talk to two USB ports. Port 2 is the one built into the board itself:
But Norberto has always provided a place to mount a second “A” type connector to interface to Port 1.
The VDIP firmware we’ve been using is called “VDAP” and is documented here https://ftdichip.com/wp-content/uploads/2020/08/UM_VinculumFirmware_V205-1.pdf It contains a rich command set that we haven’t completely tapped into. The main commands we’ve used involve access to USB flash drives on Port 2 but you can also connect a range of devices to port 1 including hubs, printers and “human interface devices”. To my knowledge none of us has experimented with this but it does offer up lots of possibility. For example, the ability to attach a USB printer to your system. Or what about a mouse or keyboard? As usual it’s a “small matter of programming” to figure out how to do this.
So when considering whether or not to add the second USB connector to your build just remember that there are some possibilities that we can explore here when one of us has the time to dig into this! So far on all the boards I’ve built I’ve chosen to add the connector since it involves only a few parts, but on the new board it sounds like there may be an issue if you need the FT245 interface board.
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of Norberto Collado
Sent: Wednesday, January 26, 2022 2:43 AM
To: se...@googlegroups.com
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
Thanks Todd!
After testing different approaches, I decided to go with the 3 sided opening as suggested by Steve Shumaker. I think I have the main components in the right position, so I shall complete the layout this week.
You can use either use the FT245R breakout board with the 10-pin connector or the surface mount part with the USB-A connector. Once the USB-A male connector is installed, you cannot use the breakout board. I will suggest to use the breakout board with the 10-pin connector and when they go obsolete you can switch to the surface mount part if needed.
Here is a distorted picture of final board.
Thanks,
Norberto
From: "se...@googlegroups.com" <se...@googlegroups.com> on behalf of Todd Goodman <tacom...@gmail.com>
Reply-To: "se...@googlegroups.com" <se...@googlegroups.com>
Date: Monday, January 17, 2022 at 3:49 AM
To: "se...@googlegroups.com" <se...@googlegroups.com>
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
Great! I'm on deck and will order when I hear from Norberto that it's ready to go.
I'll order enough to try to reduce the cost and have them on hand for anyone looking for one in the future.
Todd
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but on the new board it sounds like there may be an issue if you need the FT245 interface board.
The above is only true with the FT245 and not true for the VDIP1. The board supports both USB ports for the VDIP1 at the same time.
Norberto
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/020901d812aa%249aff1be0%24d0fd53a0%24%40gmail.com.
After adding the FT245R surface mount part and the FT245R breakout board, the data bus go messy, so I had to removed the high speed OSC for the USART. I used such space to add a data buffer to isolate the data bus. This will also improve the reliability of the board and H89 computer.
This is how it looks now with the data buffer.
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Layout is now completed. I will do another review before ordering a few boards to verify for layout mistakes.
From: "se...@googlegroups.com" <se...@googlegroups.com> on behalf of Norberto Collado <norberto...@koyado.com>
Reply-To: "se...@googlegroups.com" <se...@googlegroups.com>
Date: Thursday, January 27, 2022 at 2:33 PM
To: "se...@googlegroups.com" <se...@googlegroups.com>
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I will post all the files on the webserver when done and then you can use such footprints as needed.
Norberto
From: "se...@googlegroups.com" <se...@googlegroups.com> on behalf of Darrell Pelan <pel...@gmail.com>
Reply-To: "se...@googlegroups.com" <se...@googlegroups.com>
Date: Thursday, January 27, 2022 at 4:14 PM
To: "se...@googlegroups.com" <se...@googlegroups.com>
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
Looks great! Do you have footprint files or 3D models for the H-89 bus connectors?
On Thursday, January 27, 2022 at 5:34:03 PM UTC-5 Norby wrote:
After adding the FT245R surface mount part and the FT245R breakout board, the data bus go messy, so I had to removed the high speed OSC for the USART. I used such space to add a data buffer to isolate the data bus. This will also improve the reliability of the board and H89 computer.
This is how it looks now with the data buffer.
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I will post all the files on the webserver when done and then you can use such footprints as needed.
Norberto
From:
"se...@googlegroups.com" <se...@googlegroups.com> on behalf of Darrell Pelan <pel...@gmail.com>
Reply-To: "se...@googlegroups.com" <se...@googlegroups.com>
Date: Thursday, January 27, 2022 at 4:14 PM
To: "se...@googlegroups.com" <se...@googlegroups.com>
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
Looks great! Do you have footprint files or 3D models for the H-89 bus connectors?
On Thursday, January 27, 2022 at 5:34:03 PM UTC-5 Norby wrote:
After adding the FT245R surface mount part and the FT245R breakout board, the data bus go messy, so I had to removed the high speed OSC for the USART. I used such space to add a data buffer to isolate the data bus. This will also improve the reliability of the board and H89 computer.
This is how it looks now with the data buffer.
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Load them into the PCB layout library. When placing them, just rotate them into position. Let me know if any issues.
Error! Filename not specified.
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The files for the H89 Serial USB Controller are here: http://koyado.com/heathkit/New-H8-Website/h89-serial-usb.html
I will order a set to check the layout. If everything works fine, then I will let Todd know so that you can get a board.
Thanks,
Norberto
Norberto:
Thank you for the continued progress on this :-}.
I see that you snuck in a SSOP-28 (ouch!) footprint for a “naked” FT245R; I presume that goes with use of the “FT245R1” USBA_3 footprint?
Will you be soldering one up and testing that alternative to the daughterboard?
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of Norberto Collado
Sent: Tuesday, February 22, 2022 1:04 AM
To: se...@googlegroups.com
Subject: Re: [sebhc] Re: H89-USB-Serial order list.
The files for the H89 Serial USB Controller are here: http://koyado.com/heathkit/New-H8-Website/h89-serial-usb.html
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The plan is to solder the SSOP-28 part into the board and to test via USB-A. The micro USB-C breaks easily as it is surface mount as well.
Norberto
From: "se...@googlegroups.com" <se...@googlegroups.com> on behalf of <pbi...@gmail.com>
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Date: Monday, February 21, 2022 at 11:12 PM
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I pull back such board to add the Mini-USB and USB-C breakout boards to have more cable options. I received those boards today. So I hope to put the order back in by tomorrow.
Here is a picture of such boards and sorry for the delay.
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/82FB4C31-9ECE-40F8-8894-D1FC289D7037%40koyado.com.
Ordered boards to check the layout. Hopefully no issues. 😊
Website updated!
http://koyado.com/heathkit/New-H8-Website/h89-serial-usb.html
Norberto
From: "se...@googlegroups.com" <se...@googlegroups.com> on behalf of <norberto...@koyado.com>
Reply-To: "se...@googlegroups.com" <se...@googlegroups.com>
Date: Monday, March 7, 2022 at 10:59 PM
To: "se...@googlegroups.com" <se...@googlegroups.com>
Subject: RE: [sebhc] Re: H89-USB-Serial order list.
I pulled back such board to add the Mini-USB and USB-C breakout boards to have more cable options. I received those boards today. So I hope to put the order back in by tomorrow.
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/00b501d832ba%24091a8b30%241b4fa190%24%40koyado.com.
As Shanghai is in COVID-19 lockdown, I do not expect any boards soon.
☹
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I just got confirmation from Shanghai that the H89-USB-Serial boards will ship tomorrow. 😊
Thanks,
Norberto
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Hello Dave,
The H89-USB boards will be here by next week. I will like to send you 2xboards to solder the surface mount FT245R IC. I will send the following parts so that you can test it with a laptop. The laptop should power up the IC and should be detected by the Windows device manager.
Sending:
2x pcb boards
2x jumpers to power-up the IC (soldered)
2x FT245RL surface mount
1x USB Mini Cable to test IC with laptop or PC.
2x Mini USB adapter (soldered)
Just email me your shipping address, to send the above parts. You can keep one of the boards if interested as I just need one for functional verification.
Thank you for your help,
Norberto
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/SN6PR01MB3855E7A04CC00F879BDCB853F7219%40SN6PR01MB3855.prod.exchangelabs.com.
I’m not sure how the FT245R is being powered (USB vs. local) but the following point was recently made in another forum – although I expect that it is less relevant here. Still, FYI:
“I _always_ use bus power for those modules wherever possible, mainly so that power cycling the target system doesn't make the host system think that the serial port has gone away and come back. That serial port "flap" almost always requires manually telling whatever software you're using on the host to reopen the port, or running it again from scratch. That's not a big concern if you don't anticipate power-cycling the target, but somehow I often wind up having to do that.”
I note that the typical FT245R-based mini-boards usually include a 1x3 jumper-block to make the choice, and the USB-choice brings additional line-protection circuitry to bear.
From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of norberto...@koyado.com
Sent: Sunday, April 17, 2022 4:24 AM
To: se...@googlegroups.com
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Good point and thank you for sharing such information. Powering the FT245 ONLY FROM THE USB port is a big mistake. In our case we power the FT245RT from the H89 side and from the USB side by using a diode on the H89 SIDE (VUSB). The FT245 IC is always powered. If we only power from the USB side, then the following issue will occur:
“This is to prevent the FT245 from adding too much capacitance to the data bus if the FT245 USB cable is not connected to the USB port on the PC side to avoid data corruption when trying to read from the VDIP1. On the H89 it causes the system to hang on power-on. ”
By buffering the data bus on this board for sure we fixed the H89 hang on power-on. The diode prevents the IC from losing VCC. I do not use +3V, instead +5V.
Thanks,
Norberto
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Hello Dave,
I'm sending you the two H89 boards. To be able to use the smaller USPS box, I cannot solder the parts. I'm sending you the parts to solder. It is a 3-pin header for VCC to the FT245 and a Mini-USB adapter.
I will include the MINI-USB power cable.
Solder USB-Mini breakout board here: header included.
Note: Also figure out the best method to install such breakout part to the board.
Solder 3-pin power header included here + the FT245 surface mount part (JP2)
Send to:
McGuire Scientific Services, LLC
887 5th Avenue
New Kensington, PA 15068
Thanks,
Norberto
Dave,
Here is tracking information:
Shipping details
| ||||||||||||
Norby
From: "se...@googlegroups.com" <se...@googlegroups.com> on behalf of <norberto...@koyado.com>
Reply-To: "se...@googlegroups.com" <se...@googlegroups.com>
Date: Tuesday, April 19, 2022 at 9:34 PM
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I just finished the assembly of the H89-USB-Serial board. It is ready for testing. I took out my old friend from storage (H89-SBC) to use it to test it out. This new board looks great.
Now to assembled the H8-Z5-4 cassette board.
Dave,
Any updates on these boards?
Your item was delivered in or at the mailbox at 8:38 am on April 25, 2022 in NEW KENSINGTON, PA 15068.
Thanks,
Norberto
From: se...@googlegroups.com <se...@googlegroups.com>
On Behalf Of Norberto Collado
Sent: Wednesday, April 20, 2022 7:06 PM
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