I2C1 issues

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Deas
Hi, I'm getting some errors on attempting to connect to the PN532 module w/ Pico

cutting it down to the basics:
```
I2C1.setup({scl:B6, sda:B7});
I2C1.writeTo(0x50,[0,0]);
```
And this happens:
```
Uncaught InternalError: Timeout on I2C Write BUSY
 at line 1 col 24
I2C1.writeTo(0x50,[0,0]);
```
I'm not sure why this happens, maybe I connected it poorly?

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