Re: RA8875 display problems with T4.x - a visual study
Good to know.? I used the following order: 1. SCLK (gray) 2. GND (white) 3. VCC (black) 4. CS (brown) 5. VCC (red) 6. MISO (orange) 7. GND (yellow) 8. MOSI (green)
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Terrance Robertson, KN6ZDE
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#33264
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Re: RA8875 display problems with T4.x - a visual study
Can you show how you re-ordered the cable? If you have the "rainbow" type Insulation Displacement cable and raw connectors it's not too difficult to split the wires, reorder them and then hold them in
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ken WA2MZE
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#33263
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Re: boards and kits and stuff
I worked for Blackberry, and was privy to some of the hardware details.? They used I2C for most of the interchip connections.? I think the display interface was "bare metal" built into the SOC
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ken WA2MZE
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#33262
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Re: The group
You should be okay now. Jack, W8TEE
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jjpurdum
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#33261
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Re: T41 V12 Boards and K9HZ Kits in stock
Bill's web site is: AmateurRadioBuilders@... is also a member here, but the above site is his own and a sure way to get his attention. Jack, W8TEE
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jjpurdum
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#33260
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Re: No Reply How Come!
Hi Tom: For some reason, the site has rejected the last 4 applications for membership and I cannot see why. Also, the posts were sent to my Spam folder...again, don't know why. I think I have
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jjpurdum
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#33259
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Re: boards and kits and stuff
Here are the ferrite sleeves I use. Tim W4YN
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Tim O'Rourke
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#33258
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Re: boards and kits and stuff
Bill. Would like 4 encoder boards. Let me know cost and will pay through pay pal. Tom AB9EK
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Tom Schulte
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#33257
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Re: T41 V66.4 with Code Revisions
It is hardware issue. I am testing 3rd party BPF BCD input code is same as yours. Tracing for short now. Tim
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Tim O'Rourke
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#33256
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No Reply How Come!
I have asked for some help and to purchase some boards through this site. I have not seen my posts or have a reply to them. Am I being black balled? If that's the case would someone please let me
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Tom Schulte
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#33255
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Re: boards and kits and stuff
I am interested in getting a 3.3 V board to see if it will further improve the receive noise on 6M by reducing radiation from the cable between the Main and Display boards. I have an AI6YM chassis
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John V Lundberg <johnvlundberg@...>
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#33254
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Re: T41 V12 Boards and K9HZ Kits in stock
Bill, Would like to order 4-encoder boards and 2- Teensy Offset boards and 20A Power Distribution kit. How do you take payments and shipping cost to zip code 53132. Tom AB9EK E-mail; call @arrl.net
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Tom Schulte
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#33253
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The group
I've sent a message several times asking about the digital post processor that was in the book "microcontroller s for amateur radio" and have gotten no response so no need for me to belong to the
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Steven Fisher <steven.fisher47@...>
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#33252
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Radiated EMI from displays
Hello, I discovered this project last Fall and this reflector even more recently. I have been reading the discussions about "Display Noise' and"SPI issues"? with much interest and since my experience
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John V Lundberg <johnvlundberg@...>
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#33251
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Re: Oscillations on high bands
I'm running 66.4 that I believe you sent me. RX_SEL_BPF does not change state when PTT is pressed, You can observe that on J1 of the LPF-Cntl pin 8. You can see Pin 7 & 8 easily at that connector. I
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D Solt
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#33250
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Re: Oscillations on high bands
Thanks Dave! Do you mean that RX_BPF_SEL does not change state? Can you point me to the source of the 66.4 code you're running? I want to try to figure out why this is the case.
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Oliver KI3P
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#33249
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Re: Ver066_9_3_22_25
That is strange. This sounds like the kind of error that can happen when the data structures stored on the EEPROM change, for instance when you move between versions of the code without erasing the
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Oliver KI3P
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#33248
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Re: SDTVer66.9 results
Bill, I don't have any oscillations, but then I don't have a LPF or PA built yet. I lost over a week trying to get back to where I could compile a running version. I attached the spectrum of the 10m &
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Robert Luken W3RDL
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#33247
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Re: RA8875 display problems with T4.x - a visual study
I think it would.? I was going to test this but didn't want to make up another cable.? I was sweating it with the one I made thinking I'd get the wiring wrong or connect it upside down.
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Terrance Robertson, KN6ZDE
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#33246
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Re: Ver066_9_3_22_25
I've made dozens of changes to the 66.9 .ino, sdt.h and config.h files which entailed multiple compiling and loading cycles. I want to say that this is the most stable and easy-to-live with release
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Tom - AJ8X
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#33245
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