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Help on MicroBuilder PN532 breakout board

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neoaspilet11

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Hello Guys,

Please help. I got a Microbuilder PN532 breakout board connected to STM3210C EVAL board. It seems the command to PN532 went through but the reply will only be received when I force the system to power down. Really very weird behavior. The PN532 chip will only reply just before few millisecs before power is killed.

And when after I send a command to the chip, no activity can be seen in the IRQ ang TX line of the PN532 chip.

Anybody who has this kind of experience, please share how to debug.

Thanks,

neo
 

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