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Incorrect value for POWER_UP_STATUS(X) #1

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michaelengel opened this issue Apr 10, 2023 · 0 comments

michaelengel commented Apr 10, 2023

POWER_UP_STATUS is defined as follows:
#define POWER_UP_STATUS(X) X & 0x40

According to table 5-1 at [http://www.rjhcoding.com/avrc-sd-interface-2.php], the card power on status bit is bit 31, so the correct line should read

#define POWER_UP_STATUS(X) X & 0x80

(the web page has the same incorrect define)

[https://github.com/ryanj1234/SD_TUTORIAL_PART2/blob/5f5739ecfc300d0984c30bc55e199324a186efd0/main.c#L36]

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