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Lpc2000

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UART, Flash and other Questions ?

2004-04-16 by Lasse Madsen

Hi all ...

I have an application where I would like to use a GPRS modem coupled
directly to the UART1's modem interface etc...
I have never worked with such a full modem interface before (RTS,CTS,DTR
etc...) so I was curious ... Do one have to control the modem signals in
software or  does the modem control this in hardware (for example .. if the
modem asks the UART to stop transmitting i guess the uart stops until it can
see that the signal isnt present any more and then resumes automatically as
long as the FIFO is full ?)

Another question is ....

I have a commercial FAT12/16/32 file system I would like to implent into the
2106 it occupies about 40KB of code in an AvR 8bit processor do you have any
idea what that would relate to (in KB) in the LPC ? (disregarding the
compilers optimization) what I mean is ... is 40KB code in an AvR the same
as 40KB code in an LPC ARM ?

Another this ...

Has anyone tried to interface a MMC/SD card to the LPC ... i know its
possible ofcause but what im thinking of is if its possible to use the /SS
pin to drive the ChipSelect (CS) on the SD card (can the /SS pin be
configured as an output and controlled in software?)

regards
lasse madsen

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