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Igloo/old/fwk_test/src/main.cpp

87 lines
1.5 KiB
C++

#include "epenguin.hpp"
#include "hal_sam_d2x.hpp"
#include <inttypes.h>
#define PORT_ADDR (0x41004400)
#define PORT_GROUP_SIZE (0x80)
#define PORT_A_OFF (0x00)
#define PORT_B_OFF (0x80)
#define PORT_DIR_OFF (0x00)
#define PORT_OUT_OFF (0x10)
// LED 0: PA09
// LED 1: PB01
#define LED0_PORT (0)
#define LED0_PIN (9)
#define LED1_PORT (1)
#define LED1_PIN (1)
static void init_pin(int port, int pin);
static void set_pin(int port, int pin);
static void clr_pin(int port, int pin);
static void delay(int n)
{
int i;
for(;n>0;n--)
{
for(i=0;i<100;i++)
{
asm volatile("nop");
}
}
}
int main()
{
init_pin(LED0_PORT, LED0_PIN);
init_pin(LED1_PORT, LED1_PIN);
for(;;)
{
set_pin(LED0_PORT, LED0_PIN);
clr_pin(LED1_PORT, LED1_PIN);
delay(500);
clr_pin(LED0_PORT, LED0_PIN);
set_pin(LED1_PORT, LED1_PIN);
delay(500);
}
return 0;
}
// port 0: A
// port 1: B
void init_pin(int port, int pin)
{
uint32_t* dir_reg = (uint32_t*)((PORT_ADDR | (port * PORT_GROUP_SIZE) | PORT_DIR_OFF));
*dir_reg |= (1 << pin);
}
void set_pin(int port, int pin)
{
uint32_t* out_reg = (uint32_t*)((PORT_ADDR | (port * PORT_GROUP_SIZE) | PORT_OUT_OFF));
*out_reg |= (1 << pin);
}
void clr_pin(int port, int pin)
{
uint32_t* out_reg = (uint32_t*)((PORT_ADDR | (port * PORT_GROUP_SIZE) | PORT_OUT_OFF));
*out_reg &= ~(1 << pin);
}