29 lines
384 B
C
29 lines
384 B
C
#include <stdbool.h>
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#define CTRL_ADDR 0xA000
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#define DATA_ADDR 0xA001
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struct UartStatusBits{
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bool RDRF:1; // bit 0
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bool TDRE:1;
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bool DCD:1;
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bool CTS:1;
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bool FE:1;
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bool OVRN:1;
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bool PE:1;
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bool IRQ:1; // bit 7
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};
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union UartStatusReg {
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struct UartStatusBits bits;
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uint8_t byte;
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};
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union UartStatusReg uart_SR;
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uint8_t incoming_char;
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void init_uart();
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void step_uart();
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