Zilog EZ80F916 - Manual (Page 160)

UM014423-0607 Using the ANSI C-Compiler
ZiLOG Developer Studio II
eZ80Acclaim! ® User Manual
140
init_timer1(); // Init 100ms Timer - enable timer 1 ISR
_ei(); // Turn on the master interrupt system.
do
{
Your code goes here....
}while(1);
/****************************************************************
* This will initialize timer1 to interrupt every 10 ms
*
* 16 bit time constant is not big enough for 100 ms interrupts,
* so we will use additional intermediate counter to count
* every 10 ticks.
*/
void init_timer1(void)
{
ticks1 = 0x00;
intermediate_ticks1 = 0x00;
TMR_CTL1 = 0x00;
TMR_RRL1 = 0xFF;
//setup timer to interrupt every 10ms
TMR_RRH1 = 0x1F;
TMR_CTL1 = 0x0e;
//timer0 = multipass, /16, interrupt enable
TMR_CTL1 |= 0x01; //enable timer
TMR_IER1 = 0x01; // Enables timer 1 interrupt
}
void init_com1(void)
{
PC_ALT1 &= 0xf0; //PD0 = uart0_tx, PD1 = uart0_rx
PC_ALT2 |= 0x0F;
UART_LCTL1=0x80; //select dlab to access baud rate generators
BRG_DLRL1=0x45; // 9600
BRG_DLRH1=0x01;
UART_LCTL1=0x00;
//disable dlab
UART_FCTL1=0xc7; //clear tx fifo, clear rx fifo, fifo enable
UART_LCTL1=0x1B; //8-N-1
UART_MCTL1=0x20; //disable modem flow control
UART_IER1=0x05; //rx int enable, master int enable was 1
}
#pragma interrupt