2021-08-12 21:07:47 +02:00
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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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2021-08-15 21:49:02 +02:00
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#define GPIO (*((io32_t) 0x20000000))
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#define GPIO_O (*((io8_t) 0x20000000))
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#define GPIO_I (*((io8_t) 0x20000001))
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#define GPIO_OE (*((io8_t) 0x20000002))
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#define I2C_SR (*((io8_t) 0x30000000))
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#define I2C_DR (*((io8_t) 0x30000004))
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2021-08-18 13:54:07 +02:00
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#define USB_SR (*((io8_t) 0x40000000))
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#define USB_DR (*((io8_t) 0x40000004))
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#define UART_SR (*((io8_t) 0x50000000))
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#define UART_DR (*((io8_t) 0x50000004))
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2021-08-12 21:07:47 +02:00
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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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2021-08-18 13:54:07 +02:00
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#define USB_SR_RXNE (1 << 0)
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#define USB_SR_TXE (1 << 1)
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2021-08-12 21:07:47 +02:00
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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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