nfc hangs when querying the object

[espruino-discuss3]

Posted at 2017-11-14 by BrendanDawes

Whenever I try and query the nfc object it just hangs.

I'm using Espruino Wifi and have my setup code like this:

 I2C2.setup({scl:B10, sda:B3});
 var nfc = require("PN532").connect(I2C2);

That doesn't make anything hang.

But if I then try this

console.log(nfc.getVersion());

It just hangs. Doesn't matter what method I call on the nfc class, it just hangs straight away.

I've tried i2c1 as well and I seem the same behaviour.

Any ideas?

[espruino-discuss3]

Posted at 2017-11-14 by BrendanDawes

OK.

I hadn't switched over the tiny SMD switch across on the board to switch it to i2c mode.

Works now!

I'll get my coat.

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Posted at 2017-11-15 by @gfwilliams

Great! glad you got it sorted! I'm surprised about the hang though - I2C should usually time out and throw an exception.

It it happens again, it'd be interesting to see if Ctrl-C will break out of it...