#include "hw_config.h"
#include "led.h"
#include "key.h"
#include "uart.h"
static volatile u16 s_key = 0;
static volatile u8 s_exit = 0;
void gpio_polling_key(void)
{
s_exit = 0;
while(!s_exit)
{
if( !inp(PINH, PH0) && !(s_key & KEY_KEY1) )
{
usart0_puts("Key1 Pressed.\r\n");
s_key |= KEY_KEY1;
}
else if( inp(PINH, PH0) && (s_key & KEY_KEY1) )
{
usart0_puts("Key1 Released.\r\n");
s_key &= ~KEY_KEY1;
}
if( !inp(PINH, PH1) && !(s_key & KEY_KEY2) )
{
usart0_puts("Key2 Pressed.\r\n");
s_key |= KEY_KEY2;
}
else if( inp(PINH, PH1) && (s_key & KEY_KEY2) )
{
usart0_puts("Key2 Released.\r\n");
s_key &= ~KEY_KEY2;
}
if( !inp(PINH, PH2) && !(s_key & KEY_KEY3) )
{
usart0_puts("Key3 Pressed.\r\n");
s_key |= KEY_KEY3;
}
else if( inp(PINH, PH2) && (s_key & KEY_KEY3) )
{
usart0_puts("Key3 Released.\r\n");
s_key &= ~KEY_KEY3;
}
if( !inp(PINH, PH3) && !(s_key & KEY_KEY4) )
{
usart0_puts("Key4 Pressed.\r\n");
s_key |= KEY_KEY4;
}
else if( inp(PINH, PH3) && (s_key & KEY_KEY4) )
{
usart0_puts("Key4 Released.\r\n");
s_key &= ~KEY_KEY4;
}
_delay_ms(20);
}
}
void main(void)
{
CLI(); // all interrupt disable
bsp_usart0_gpio_init();
bsp_usart0_init(F_CPU, EBaud115200, EData8, EParNone, EStop1, FALSE );
bsp_usart0_interrupt_enable();
// set input
cbi(DDRH, PH0);
cbi(DDRH, PH1);
cbi(DDRH, PH2);
cbi(DDRH, PH3);
// set output
sbi(DDRH, PH4);
sbi(DDRH, PH5);
sbi(DDRH, PH6);
sbi(DDRH, PH7);
// led matrix on
sbi(PORTH, PH4);
sbi(PORTH, PH5);
sbi(PORTH, PH6);
sbi(PORTH, PH7);
_delay_ms(1000);
// led matrix off
cbi(PORTH, PH4);
cbi(PORTH, PH5);
cbi(PORTH, PH6);
cbi(PORTH, PH7);
gpio_polling_key();
SEI(); // all interrupt enable
while(1)
{
}
}
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