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Problem with hardware flow control of LPC2210 uart

Problem with hardware flow control of LPC2210 uart

2006-03-14 by Luc Steynen

Hi,

 

I am trying to use the auto-cts feature of the LPC2210 cpu, uart1. To
enable it, I have to set the CTSen "Auto-CTS control bit", which is bit
7 in the U1MCR register. But I can not set this bit. It is always read
as zero.

I can set and read the DTR, RTS and loopback bits in the same register.

I have the PINSEL0 bits P0_8 to P0_15 set to 1 to activate the pins as
uart handshake lines.

 

Anyone got a clue or a code snippet that uses hardware flow control?

 

Lubine

 



[Non-text portions of this message have been removed]

Re: Problem with hardware flow control of LPC2210 uart

2006-03-14 by Karl Olsen

--- In lpc2000@yahoogroups.com, "Luc Steynen" <LucSteynen@...> wrote:
> 
> I am trying to use the auto-cts feature of the LPC2210 cpu, uart1.
> To enable it, I have to set the CTSen "Auto-CTS control bit", which
> is bit 7 in the U1MCR register. But I can not set this bit. It is
> always read as zero.
> 
> I can set and read the DTR, RTS and loopback bits in the same
> register.
> 
> I have the PINSEL0 bits P0_8 to P0_15 set to 1 to activate the pins
> as uart handshake lines.

The LPC2210 doesn't have hardware flow control.  This was added in 
the newer LPC214x and LPC2101/02/03.

Karl Olsen

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