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Forum Index : Microcontroller and PC projects : Use of GP8/GP9 on PicoMite-USB for other purposes
| Author | Message | ||||
| Arne Newbie  Joined: 05/01/2025 Location: GermanyPosts: 22 |
Hello, How can I disable the console rx/tx , means free the reserved GP8 and GP9 for other use, in my case for a LCD-display, when I use the USB-version of picomite? In the non USB-Version a failure message says I should deactivate the console to change relevant GPs. This could be done via Teraterm - In the USB Version this way is blocked. If I do blind typing on the USB-Keyboard I don’t know if after deaktivating of the console the keyboard is still active? Any idea? Arne |
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| dddns Senior Member  Joined: 20/09/2024 Location: GermanyPosts: 260 |
You first have to attach a USB serial converter to gp8 and gp9. Then you can access the console and then you can change gp8 and gp9 to a different pair of GPs of your choice. It it possible to disable the serial console completely but you cannot access the PicoMite any more over serial once you have done that! |
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Mixtel90 Guru  Joined: 05/10/2019 Location: United KingdomPosts: 7504 |
I've currently got a multi-purpose design in the works. I've reserved GP12 to GP19 for all displays. It will just depend on which firmware you use and which display module you plug into those pins. GP8 and GP9 are reserved for the console as this board can also use USB. I've found this to be the easiest way as if your final design uses some other pins you have to type blind to configure them. I decided to lay the boards out to always use the default pins but that's up to you. :) Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
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| Arne Newbie Joined: 05/01/2025 Location: GermanyPosts: 22 |
Thanks for the answers! Because I have a pre-soldered socket at the back of the display I tried the solution of „dddns“ and shifted the serial console to GP4 and GP5 (OPTION SERIAL CONSOLE GP4,GP5). Afterwards I could use GP8 and GP9 for the display. Due the USB-interface is still working in parallel it is enough to blind type „OPTION SERIAL CONSOLE GP4,GP5“ to free GP8 and GP9, means there is no need to connect a serial to USB converter. Arne |
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BarryH Newbie Joined: 05/01/2025 Location: AustraliaPosts: 9 |
⌀ BarryH |
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