Lpc2000

Hello Valdef,
 
                       I changed my XTAL to 14.7456 MHz and it works until 38400 Bautrate. Where as user manual says XTAL 14.7456 MHz can be used to have higher baudrates
 
XTAL 14.7456 MHz---> 9600, 19200, 38400, 57600, 115200, 230400.
(page 271, User Manual LPC2119/2129/2194/2292/2294)
 
I wonder it just woked untill 38400.
 
any idea guys ??
 
Tom

valdef78 <valdef@...> wrote:
--- In lpc2000@yahoogroups.com, Tom Convent <ur_tom1977@y...> wrote:
> Hello, 
>  
>            I am using philips flash utility for uploading flash. 
My baudrate is 9600, when I want to increase my baudrate to 38400 or 
57600, error comes "one of the parameters are not matching" I am 
using XTAL 12 MHz. How can I increase baudrate so that uploading to 
flash would be faster. I am using lpc2129
>  
> thanks 
> Tom Convent  

I see in the last LPC213x manual a table about the possible 
baudrates according to the xtal. (table 196 p.224 in "UM10120_1 - 
LPC213x User Manual.pdf")

for example :
xtal 11.0592 > 9600, 19200 & 57600.
xtal 12.2880 > 9600, 19200 & 38400.
xtal 14.7456 >  9600, 19200, 38400, 57600, 115200 & 230400.

name of the table :
"Table 196:Correlation between possible ISP baudrates and external 
crystal frequency (in MHz)".




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