34 lines
714 B
C
34 lines
714 B
C
#include <stdint.h>
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#include "tusb.h"
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#include "util.h"
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uint8_t get_unique_id_u8(uint8_t *desc_str) {
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const uint32_t *idpnt = (uint32_t*)(0x1FFFF7AC); /*DEVICE_ID1*/
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uint32_t tmp = 0;
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uint8_t chr_count = 0;
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for (size_t digit = 0; digit < 24; digit++) {
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if (0 == (digit & 7)) tmp = *idpnt++;
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desc_str[chr_count++] = nyb2hex(tmp & 0xf);
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tmp >>= 4;
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}
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return chr_count;
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}
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uint8_t get_unique_id_u16(uint16_t *desc_str) {
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const uint32_t *idpnt = (uint32_t*)(0x1FFFF7AC); /*DEVICE_ID1*/
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uint32_t tmp = 0;
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uint8_t chr_count = 0;
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for (size_t digit = 0; digit < 24; digit++) {
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if (0 == (digit & 7)) tmp = *idpnt++;
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desc_str[chr_count++] = nyb2hex(tmp & 0xf);
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tmp >>= 4;
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}
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return chr_count;
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}
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