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// this is a fixed size and should not be changed
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#define SDCARD_BLOCK_SIZE (512)
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void sdcard_init(void);
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bool sdcard_is_present(void);
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bool sdcard_power_on(void);
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void sdcard_power_off(void);
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uint64_t sdcard_get_capacity_in_bytes(void);
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bool sdcard_read_block(uint8_t *dest, uint32_t block_num);
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bool sdcard_write_block(const uint8_t *src, uint32_t block_num);
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extern const struct _mp_obj_base_t pyb_sdcard_obj;
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