mk3
Member level 2

sle4442
I'm trying to use an Infineon/Siemens SLE4442 memory card in an embedded project.
As I can read only '1's can someone tell me what I must expect reading after a reset, as ATR bytes? I'm following the reset and read procedure as in datasheet, driving the card sync mode, and read every bit 1 in the first bytes...
What about reset/read timings? What if I move signals slowly as on the
datasheet? Can I do a sort of step by step communication? Any info or source example for any mcu? :?:
regards
I'm trying to use an Infineon/Siemens SLE4442 memory card in an embedded project.
As I can read only '1's can someone tell me what I must expect reading after a reset, as ATR bytes? I'm following the reset and read procedure as in datasheet, driving the card sync mode, and read every bit 1 in the first bytes...
What about reset/read timings? What if I move signals slowly as on the
datasheet? Can I do a sort of step by step communication? Any info or source example for any mcu? :?:
regards