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ISO7816 on LPC11u68 in 115200 baudrate

Question asked by Mahmoud Hosseini on Jan 23, 2017
Latest reply on Feb 4, 2017 by Mahmoud Hosseini

Hi every one,

we want to try lpc11u68 for contacting with a ISO7816 based smart Card.

As you know this required using usart0 peripheral in iso7816 mode,Also clock pulses(CLK pins) must be generated separately(maybe using (SCTimer/PWM).

Does any one know whats maximum frequency SCTimer can generate?

I think for transitiving  in 115200 baud-rate we need 42.96 MHZ of clock frequency, Can SCTimer toggle a pin with this frequency?

As a other way Can we set Fi & Di parameters of ATR in any bigger value than 372 for transferring more data in the same clock frequency?

WBR.

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