21 lines
442 B
C
21 lines
442 B
C
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#include <stdint.h>
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#define LEDS *((volatile uint32_t *) 0x00010000)
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#define UART_BAUD *((volatile uint32_t *) 0x00020000)
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#define UART_STATUS *((volatile uint32_t *) 0x00020004)
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#define UART_DATA *((volatile int32_t *) 0x00020008)
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int main() {
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UART_BAUD = 36000000 / 9600;
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for (;;) {
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int32_t c;
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do {
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c = UART_DATA;
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} while (c < 0);
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UART_DATA = c;
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LEDS = c;
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}
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}
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