[ARM] UART output problem in hyper terminal

[v.s.n.kumar]

i have written a program for UART0 of LPC2129. the programm is to transmit a variable from pc in to lpc2129. The controller whatever it is received, it must display on the hyper terminal. the baud rate is 9600. after debugging i saw cclk as 12mhz. so i put 19 in U0DLL. the program is run successfully in proteous. but it is not worked in HYPER TERMINAL(PC). i.e., what ever the character i have entered from keyboard, the hyper terminal displays some other symbols. plz solve my problem.

 

[seadolphine2000]

Please, post your code.

 

[v.s.n.kumar]

I have dumped the below code in lpc2129 board. but if i press any letter from keyboard then it display other symbols. CCLK=12mhz, PCLK=3mhz.

#include<LPC21xx.h>
main()
{
unsigned char ch;
PINSEL0=0X00000005;
U0LCR=0X83;
U0DLM=0;
U0DLL=19;
U0LCR=0X03;
while(1)
{
while(!(U0LSR&0X01));
ch=U0RBR;
U0THR=ch;
while(!(U0LSR&0X20));
}
}

 

[embpic]

you should check the baud rate which shown in blue in following picture


if you can put random baud rate then try to put the baud rate shown and see result and recalculate for baud rate.