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benoitstjean
Joined: 30 Oct 2007
Posts: 590
Location: Ottawa, Ontario, Canada
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| PIC24EP - Change baud rate speed at runtime |
 Posted: Wed Feb 05, 2025 9:20 am |
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Device: PIC24EP512GP806
Compiler: 5.026
Hi guys,
Its been a little while.
Is it possible to change the UART speed at runtime?
Reason you ask? Because my PIC is tied to a modem which runs at 115200 by default. Initially when the PIC boots, to make sure that it talks to the modem and configures it properly, I want them both to run at 115200 and when all has been successfully initialized, I want both the PIC and modem to switch to 230400. For the PIC, it's just a matter of sending AT+IPR=230400 but once that is sent, how to I switch the PIC's UART to 230400?
Thanks!
Ben |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19967
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| Posted: Wed Feb 05, 2025 10:53 am |
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Yes.
set_uart_speed
Obviously with stream name, and required baud rate.
Only for a proper hardware UART though. |
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benoitstjean
Joined: 30 Oct 2007
Posts: 590
Location: Ottawa, Ontario, Canada
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| Posted: Wed Feb 05, 2025 1:16 pm |
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Oh geez, was looking in the help and didn't see that!
Great, thanks!
Ben |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19967
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| Posted: Thu Feb 06, 2025 3:54 am |
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For some reason that is missing in the 'linked' stuff at the end of the #USE
RS232 page in the manual, but is mentioned in the setup_uart entry.
One of the manual 'oddities'....  |
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