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https://github.com/Polprzewodnikowy/SummerCart64.git
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36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
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#ifndef SYS_H__
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#define SYS_H__
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#include <stddef.h>
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#include <stdint.h>
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#define __NAKED__ __attribute__((naked))
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typedef volatile uint8_t * io8_t;
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typedef volatile uint32_t * io32_t;
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#define I2C_SR (*((io8_t) 0xC0000000))
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#define I2C_DR (*((io8_t) 0xC0000004))
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#define UART_SR (*((io8_t) 0xD0000000))
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#define UART_RX (*((io8_t) 0xD0000004))
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#define UART_TX (*((io8_t) 0xD0000008))
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#define GPIO (*((io32_t) 0xE0000000))
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#define GPIO_O (*((io8_t) 0xE0000000))
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#define GPIO_I (*((io8_t) 0xE0000001))
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#define GPIO_OE (*((io8_t) 0xE0000002))
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#define I2C_SR_START (1 << 0)
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#define I2C_SR_STOP (1 << 1)
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#define I2C_SR_MACK (1 << 2)
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#define I2C_SR_ACK (1 << 3)
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#define I2C_SR_BUSY (1 << 4)
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#define I2C_ADDR_READ (1 << 0)
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#define UART_SR_RXNE (1 << 0)
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#define UART_SR_TXE (1 << 1)
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#endif
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