RS485 DIR PIN Ctrl

lpcware — Wed, 15 Jun 2016 17:00:24 GMT

Content originally posted in LPCWare by lba on Tue Nov 06 08:52:45 MST 2012
Hi
I have made a auto dir ctrl in a 11U14 and has now move it to a 1225/321, but does work.
My code is
LPC_IOCON->PIO2_0 &= ~0x17;
LPC_IOCON->PIO2_0 |= 0x05; /* UART_DIR or UART_RTS(HB1) as direction control. */
LPC_UART0->RS485CTRL |= RS485_DCTRL|RS485_OINV;
LPC_UART0->RS485DLY = 100;// Delay of DIR Pin
Nothing at all happens on the pin when transmitting I tried flikering with the pin it works fine.

Any one that can see what i do wrong ?

Best Regards
Lars

Re: RS485 DIR PIN Ctrl

arekvostruna — Thu, 02 Jul 2020 06:59:20 GMT

LPC11C24 and RS485 DIR PIN Ctrl on RTS hardware ? It is not working MCUXpresso IDE Any example how to enable it? Is there HW bug on chip?

topic Re: RS485 DIR PIN Ctrl in LPC Microcontrollers

RS485 DIR PIN Ctrl

Re: RS485 DIR PIN Ctrl

LPC11C24 and RS485 DIR PIN Ctrl on RTS hardware ? It is not working MCUXpresso IDE Any example how to enable it? Is there HW bug on chip?