FATFS anti-tamp pin fixed?

[Anonymaton]

I'm working on a project that involves using FATFS and I was curious if I had to use the specified anti-tamp pin that gets shown. I declare other input GPIO, but only PC13 shows up as PC13-ANTI_TAMP

[Tesla DeLorean · Accepted solution]

What project? What pin selection?

The MicroSD Card sockets typically have a Card Detect pin, frequently closure to ground, that you can connect to ANY GPIO, and either Poll or use as an EXTI source.

[Anonymaton]

More or less answers my question.

As to the project, it's kind of multi-step. I haven't worked with microSD or I2S before, so I wanted to start relatively simple and make an mp3 or wav player, with a MAX98357A I2S amplifier. Once I have my bearings with playing audio stored on a microSD through an I2S-based amplifier, I'm planning to make an audio mixer of sorts; playing multiple audio files at once, each with its own volume