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PIC24FJ1024GA606 Problem with UART5 und UART6 pin select

 
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Steve_P



Joined: 05 Jun 2017
Posts: 6

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PIC24FJ1024GA606 Problem with UART5 und UART6 pin select
PostPosted: Tue Sep 12, 2017 10:24 am     Reply with quote
Hi, I want to use all HW-UART of the PIC24FJ1024GA606.
U1TX/RX to U4TX/RX works fine.
U5TX/RX and U6RX/TX are reported as unknown Pin ID.
Compiler Version 5.074
Code:

#pin_select U1TX=PIN_B4
#pin_select U1RX=PIN_B2
#use rs232(UART1, baud=115200, errors, stream=RS485A)

#pin_select U2TX=PIN_G6
#pin_select U2RX=PIN_G8
#use rs232(UART2, baud=115200, errors, stream=RS485B)

#pin_select U3TX=PIN_B15
#pin_select U3RX=PIN_F5
#use rs232(UART3, baud=115200, errors, stream=RS485C)

#pin_select U4TX=PIN_F2
#pin_select U4RX=PIN_F3
#use rs232(UART4, baud=115200, errors, stream=USB)

#pin_select U5TX=PIN_D4
#pin_select U5RX=PIN_D5
#use rs232(UART5, baud=115200, errors, stream=FUNK)

#pin_select U6TX=PIN_D1
#pin_select U6RX=PIN_D2
#use rs232(UART6, baud=115200, errors, stream=NET)

How can I solve this problem ?

Thanks for your help!!

Steve
gaugeguy



Joined: 05 Apr 2011
Posts: 303

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PostPosted: Tue Sep 12, 2017 11:25 am     Reply with quote
UART5 and UART6 are not pin selectable. They are on fixed hardware pins.
jeremiah



Joined: 20 Jul 2010
Posts: 1347

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Re: PIC24FJ1024GA606 Problem with UART5 und UART6 pin select
PostPosted: Tue Sep 12, 2017 11:45 am     Reply with quote
Just to add to gaugeguy's response, the following should work (Assuming your other UARTS are correctly pin selected).

Code:

#pin_select U1TX=PIN_B4
#pin_select U1RX=PIN_B2
#use rs232(UART1, baud=115200, errors, stream=RS485A)

#pin_select U2TX=PIN_G6
#pin_select U2RX=PIN_G8
#use rs232(UART2, baud=115200, errors, stream=RS485B)

#pin_select U3TX=PIN_B15
#pin_select U3RX=PIN_F5
#use rs232(UART3, baud=115200, errors, stream=RS485C)

#pin_select U4TX=PIN_F2
#pin_select U4RX=PIN_F3
#use rs232(UART4, baud=115200, errors, stream=USB)

#use rs232(UART5, baud=115200, errors, stream=FUNK)

#use rs232(UART6, baud=115200, errors, stream=NET)
gaugeguy



Joined: 05 Apr 2011
Posts: 303

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PostPosted: Tue Sep 12, 2017 1:03 pm     Reply with quote
UART5 is on D1 & D6
UART6 is on B7 & B12

You will need to rethink your connection choices...
Ttelmah



Joined: 11 Mar 2010
Posts: 19509

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PostPosted: Tue Sep 12, 2017 1:18 pm     Reply with quote
and this (of course) is why it is always vital at the start of the project to ensure you are using all 'fixed' peripherals in the right locations, before anything else. Reading the data sheet....
Steve_P



Joined: 05 Jun 2017
Posts: 6

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PostPosted: Wed Sep 13, 2017 8:27 am     Reply with quote
Thank you!! Of course you are right.... Embarassed
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