rt-thread-official/bsp/mipssim/drivers/mipssim.h

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#ifndef _MIPSSIM_H__
#define _MIPSSIM_H__
#include <mips.h>
#define ISA_MMIO_BASE 0x1fd00000
#define UART0_ISA_OFF 0x3f8
#define UART0_BASE KSEG1ADDR(ISA_MMIO_BASE + UART0_ISA_OFF)
void rt_hw_timer_handler(void);
void rt_hw_uart_init(void);
#endif