PN5180 SPI from esp32 core (Arduino ide) takes too long

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PN5180 SPI from esp32 core (Arduino ide) takes too long

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oferrer
Contributor II

Hi, I implemented an iso15693 inventory16 command on an esp32 controller using Arduino IDE.

It works well, although collisions happen. But i had to delay flow control 1ms after asserting NSS before wait for busy pin high. If i didnt that it doesn't work.

The problem Is the inventory take almost a second for few tags. This Is a long time for my application. 

I tried microsecondsDelay with values under 1000us, but it didn't work either, inventory fails.

Pn5180 datasheet say nothing about this. Has anyone had this problem? 

Any help. Thanks in Advance.

 

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