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請問如何實現TRF7970讀取Mifare卡片(需密碼認證)?



請問如何實現TRF7970讀取Mifare卡片(需密碼認證)?

大概思路略懂,就是要進入Direct Mode 0,MCU直接控制模擬部份的電路.

可否提供具體的代碼作參考?

比如下面的代碼無法下載,需美國批准,可否提供?

SW-DK-LM3S9B96-EM2-TRF7960-14443A

www.ti.com.cn/.../sw-dk-lm3s9b96-em2-trf7960-14443a