Hi All
I am using the LPC2378 kit with 16MHz crystal running,I want 1sec delay to generate but i don't know wt value to feed into T0MR0 register,The development board which runs on 12MHz crystal where they have given 1msec = 12000-1 at 12.0 MHz , T0MR0 = 11999 so does it has a standard formula to load the value into the MR0 register does any one have any data sheet or reference to tel me wt value to be loaded depending on the crystal and the user requirement
Regards Suresh
In fact, there is a whole page on the NXP site dedicated to the LPC2378 - with Datasheet, User Manual, Errata, Application Notes, etc:
www.nxp.com/.../LPC2378.html
hi all
this is how i initialize the timer1 void init_timer1(void){ T1MR1 = 15999999;//15990; T1MCR = 3; T1TCR = 1; T1CTCR = 0x00; VICVectAddr5 = (unsigned long)T1_IRQHandler; VICVectCntl5 = 14; VICIntEnable = (1 << 5); }
__irq void T1_IRQHandler (void) { volatile unsigned int pin_status; pin_status = FIO4PIN;
if((pin_status & 0x20000000) == 0x20000000) { FIO4CLR |= 0x20000000; } else { FIO4SET |= 0x20000000; } }
this timer1 is not working in timer0 and timer1 i have initialized as similar which toggles the pin every one sec.here timer0 generates the interrupt and i get the pin toggled but i have the problem with timer1 the pin doesnt toggle so i doubt tht timer1 is not initialized or its not able to generate interrupt so can any one help me to rectify the doubt i have given the code how i initialize the time and the interrupt code ...the default PCONP is set .
Regards suresh
www.danlhenry.com/.../keil_code.png