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TDA8029 Smart Card Reader Issues

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liberumeventus

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Greetings, we have a TDA8029 Demo Board on which we built a smart card reader. Based on the desings on NXP site all seems in order, using a control software such as RealTerm or another SRCTester shows results when we ask if the card is present or the mask number. Anyhow, the TDA chip doesn't activate the card regardless of the software or the command code. We tested the card and it's fine, so our bet is on the TDA8029 suppy supervisor. Any thoughts or tips on it?
 

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