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Re: Schematic of Front Panel_Matrix Ver V012
The schematic like below may be tried, but I doubt it is necessary, as the original I2c Matrix circuit and the software are working effectively with out bugs, I think no need to experiment further and land in trouble.
I am putting the below schematic for discussion purpose only. Any one want it to be evaluated, I feel it is interesting. |
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Re: V012 Proto Board Sets
¿ªÔÆÌåÓýOk sent me you address and I¡¯ll send the boards out. ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: ? Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. ? email:? bill@... ? ? From: [email protected] <[email protected]> On Behalf Of Andrew Lopatin via groups.io
Sent: Tuesday, September 26, 2023 8:27 PM To: [email protected] Subject: Re: [SoftwareControlledHamRadio] V012 Proto Board Sets ? yes Bill, I would be interested in playing along.? I may have difficulty soldering SMD devices, but I have decades of experience debugging things. ? On Tuesday, September 26, 2023 at 09:19:46 PM EDT, K9HZ <bill@...> wrote: ? ? I still have a few sets of v012 board sets left for a few people that want to help us prototype. ?This is just the new MAIN board and new RF board (intended to replace the QSD and QSE boards in a v010/v011 radio). ?There is a small bug on each board (we expected this. ?Thats why we prototype before the full release).? ? Let me know if interested. ? ? Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: ? email:??bill@... ? |
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Re: Schematic of Front Panel_Matrix Ver V012
¿ªÔÆÌåÓýAnd we would all encourage you to experiment¡ set up that 8x8 matrix¡ write the code to support it¡ and put 64 switches on your front panel if that suits your needs.? The hardware is all there to support your addition. ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: ? Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. ? email:? bill@... ? ? From: [email protected] <[email protected]> On Behalf Of jjpurdum via groups.io
Sent: Wednesday, September 27, 2023 8:34 PM To: [email protected] Subject: Re: [SoftwareControlledHamRadio] Schematic of Front Panel_Matrix Ver V012 ? Ian: ? The reason is because I didn't want to suck up 18 I/O pins when I originally designed the T41 switch matrix. My idea was to use a single analog pin and free up 17 other pins for other uses. The addition of the MCP23017 chip came after our original design. Indeed, a major goal of the T41 was to encourage experimentation and the addition of I2C expander chip was done in that spirit. ? Jack, W8TEE ? On Wednesday, September 27, 2023 at 07:35:18 PM EDT, ian007 via groups.io <ian007@...> wrote: ? ? Why is almost every switch of the physical panel matrix connected to a single respective GPIO of the MCP23017 chip? ? Since the MCP23017 has 16 GPIOs, a key matrix could be used, which would allow up to 64 (8*8) keys in the matrix.? (The physical keys don¡¯t have to be in a physical matrix to get the 64 possible keys; they just have to be wired that way.)? If one does not know what I am talking about, here¡¯s an informative link:? ? Ian
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Re: Schematic of Front Panel_Matrix Ver V012
Ian: The reason is because I didn't want to suck up 18 I/O pins when I originally designed the T41 switch matrix. My idea was to use a single analog pin and free up 17 other pins for other uses. The addition of the MCP23017 chip came after our original design. Indeed, a major goal of the T41 was to encourage experimentation and the addition of I2C expander chip was done in that spirit. Jack, W8TEE
On Wednesday, September 27, 2023 at 07:35:18 PM EDT, ian007 via groups.io <ian007@...> wrote:
Why is almost every switch of the physical panel matrix connected to a single respective GPIO of the MCP23017 chip?
?
Since the MCP23017 has 16 GPIOs, a key matrix could be used, which would allow up to 64 (8*8) keys in the matrix.? (The physical keys don¡¯t have to be in a physical matrix to get the 64 possible keys; they just have to be wired that way.)? If one does not know what I am talking about, here¡¯s an informative link:? https://pcbheaven.com/wikipages/How_Key_Matrices_Works/
?
Ian
-- Jack, W8TEE |
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Re: Schematic of Front Panel_Matrix Ver V012
¿ªÔÆÌåÓýYes, That can be done¡ but do you have or want 64 switches to so ¡°something¡±???? If so, I would encourage you to set up the 8x8 matrix.? Of course, that doesn¡¯t work very well for the encoders.? Also¡ remember you have a TFT display that may or may not have a ¡°touch screen¡±¡ ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: ? Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. ? email:? bill@... ? ? From: [email protected] <[email protected]> On Behalf Of ian007 via groups.io
Sent: Wednesday, September 27, 2023 6:35 PM To: [email protected] Subject: Re: [SoftwareControlledHamRadio] Schematic of Front Panel_Matrix Ver V012 ? Why is almost every switch of the physical panel matrix connected to a single respective GPIO of the MCP23017 chip? ? Since the MCP23017 has 16 GPIOs, a key matrix could be used, which would allow up to 64 (8*8) keys in the matrix.? (The physical keys don¡¯t have to be in a physical matrix to get the 64 possible keys; they just have to be wired that way.)? If one does not know what I am talking about, here¡¯s an informative link:? ? Ian |
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Re: Schematic of Front Panel_Matrix Ver V012
Why is almost every switch of the physical panel matrix connected to a single respective GPIO of the MCP23017 chip?
?
Since the MCP23017 has 16 GPIOs, a key matrix could be used, which would allow up to 64 (8*8) keys in the matrix.? (The physical keys don¡¯t have to be in a physical matrix to get the 64 possible keys; they just have to be wired that way.)? If one does not know what I am talking about, here¡¯s an informative link:? https://pcbheaven.com/wikipages/How_Key_Matrices_Works/
?
Ian |
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Re: XMIT Calibration
¿ªÔÆÌåÓýYour eyes be better than mine! ? ? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton ¨C J68HZ Soufriere, St. Lucia W.I. Rent it: ? Moderator: North American QRO Group at Groups.IO. Moderator: Amateur Radio Builders Group at Groups.IO. ? email:? bill@... ? ? From: [email protected] <[email protected]> On Behalf Of jjpurdum via groups.io
Sent: Wednesday, September 27, 2023 9:05 AM To: [email protected] Subject: Re: [SoftwareControlledHamRadio] XMIT Calibration ? If you look closely in the upper-right corner, it looks like V049. ? Jack, W8TEE ? On Wednesday, September 27, 2023 at 10:04:28 AM EDT, K9HZ <bill@...> wrote: ? ? Which software rev? ? Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: ? email:??bill@... ?
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Re: XMIT Calibration
If you look closely in the upper-right corner, it looks like V049. Jack, W8TEE
On Wednesday, September 27, 2023 at 10:04:28 AM EDT, K9HZ <bill@...> wrote:
Which software rev? Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com email:??bill@... ? On Sep 27, 2023, at 8:12 AM, Frank Jandreau <frankj02459@...> wrote:
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Jack, W8TEE |
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Re: XMIT Calibration
¿ªÔÆÌåÓýWhich software rev?Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com email:??bill@... ? On Sep 27, 2023, at 8:12 AM, Frank Jandreau <frankj02459@...> wrote:
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Re: Schematic of Front Panel_Matrix Ver V012
¿ªÔÆÌåÓýLooks about right. ?Dr.?William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ ? Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois ? Owner ¨C Operator Villa Grand Piton - J68HZ Soufriere, St. Lucia W.I. Rent it: www.VillaGrandPiton.com email:??bill@... ? On Sep 27, 2023, at 8:42 AM, bnam1954@... wrote:
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Schematic of Front Panel_Matrix Ver V012
?I tried to have a look at the schematic of Front panel Matrix, but I could not trace that schematic. So taking?Dr.?William J. Schmidt - K9HZ's? photo of proto boards as a base,? I drawn a schematic, and putting that here. I hope either?K9HZ or some one verify it and correct it, I done this out of my curiosity.
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XMIT Calibration
I'm having the same problem reported by others here on the forum with the transmit calibration procedure. Attached is my screen display similar to other on here. Both signals are of equal amplitude. At the suggestions of others I have carefully checked the Left and Right and Ground outputs from the Teensy Audio adapter for continuity to the "Exciter" output of the Main board. Everything checks out and there are no shorts betweem "L, "G" and "R". I am wondering if anyone else has found a reason for this issue other than the Teensy audio adapter signals for the QSE board. Any suggestions will be greatly appreciated! From what I can understand the QSD inputs are connected through a 20db attenuato to the QSE outputs for this test. My QSD have been moridifed to enable QSE and QSD simultaneously as documented in the latest calibration procedure.
Thanks and 73, Frank K1FFJ |
K9HZ
jjpurdum
ian007
