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Forum Index : Microcontroller and PC projects : PicoMite V6.01.00 release candidates
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| dddns Guru  Joined: 20/09/2024 Location: GermanyPosts: 675 |
I want to use the new buffered driver for ILI9341. I tried it before and still I get an error with Option lcd pins. Do I overlook something? PicoMite MMBasic USB RP2350B Edition V6.01.00RC9 OPTION SERIAL CONSOLE COM2,GP8,GP9 OPTION FLASH SIZE 16777216 OPTION COLOURCODE ON OPTION KEYBOARD US OPTION PICO OFF OPTION CPUSPEED (KHz) 200000 > option lcd pins gp2,gp3,gp0 Error : Invalid Option > option lcd pins gp14,gp15,gp12 Error : Invalid Option |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 10533 |
option lcd spi |
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| dddns Guru Joined: 20/09/2024 Location: GermanyPosts: 675 |
Thank you. I took the information from page 3.. |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 5398 |
@Peter, Closing MMedit makes no difference. Tried Minicom, Picocom, Putty. Only MMCC has this behaviour. This happens when you close MMCC, and also when you leave MMCC open but DISCONNECT. It has no relation to uploading a program via MMedit (what I thought originally). Using MMCC as a terminal shows the behaviour, as does GFXterm64 (also both with closing, and using DISCONNECT). It is something both have in common. But it results in a change in the pico !! Becuase once MMCC or GFXterm64 cause this problem, re-opening the port in Putty/Picocom , and later closing it, does not fix it. It only gets repaired when the pico is CPU RESTARTed. So it is caused by something MMCC / GFXterm64 configure into the pico that is restored with a CPU RESTART (and power cycle). Volhout EDIT: V60100RC7 also has this behaviour, but V60100b20 does not show this behaviour. I do not have in between versions anymore to pinpoint further in detail where the change occurred. Edited 2025-10-28 05:32 by Volhout PicomiteVGA PETSCII ROBOTS |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 5398 |
Peter, could it have Some relation with autosave N? Where dat is zend to usb first, and only to screen when no N? Where previous it was sent to screen first, and then to usb. Blocking usb could have this effect when the order is swapped. Volhout PicomiteVGA PETSCII ROBOTS |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 5398 |
Peter, could it have Some relation with autosave N? Where dat is zend to usb first, and only to screen when no N? Where previous it was sent to screen first, and then to usb. Blocking usb could have this effect when the order is swapped. Volhout PicomiteVGA PETSCII ROBOTS |
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| EDNEDN Senior Member  Joined: 18/02/2023 Location: United StatesPosts: 229 |
I saw some strange behavior yesterday. I was connecting and disconnecting MMCC and Tera Term back and forth. And all of a sudden I started seeing 'Stack Overflow' messages from MMBasic. Power cycling the Pico didn't help. Doing a 'New' and Reloading the BASIC program did not help. Reflashing the firmware and doing other things would not get rid of the problem. I even FlashNuked it several times and that did not help. What finally broke the cycle was loading B18 onto it. I only have high confidence in what I just stated. I do not have any confidence that I know what I did wrong. Edited 2025-10-28 06:04 by EDNEDN |
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TassyJim Guru Joined: 07/08/2011 Location: AustraliaPosts: 6338 |
@Volhout, Peter MMCC does assert DTR. That was needed for any comms with the picomites. I could try dropping DTR and wait 100mS when closing the port. That should definitely stop the data flow. In Linux I had to do a few register tweaks for baud rates over 115200. I know the baud rate does nothing with the picomite USB but If you have it set high, perhaps a lower setting is worth a try. I don't have a VGA pico to test with and my Linux is in a VM so not a good test for USB/serial. Jim VK7JH MMedit |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 5398 |
Jim, I use 115200 baud. Volhout PicomiteVGA PETSCII ROBOTS |
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| matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 10533 |
I have massively improved USB CDC performance since b18 and don't intend to change back any further than the Linux specific fix incorporated yesterday. |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 5398 |
Peter, Jim fixed it in MMCC, pulling DTR low 100ms before closing the CDC channel. A similar fix may be needed in GFXterm64. Volhout PicomiteVGA PETSCII ROBOTS |
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