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C51: Debug problem: how to use external crystal osc

Yi Yao

The mcu I'm using: c8051f226

I use an external osc for system clock. When doing the debug (C51), the simulator couldn't generate the ready bit XTLVLD (OSCXCN.7). There is no configuration options available. How should I proceed with the debug?

Thanks in advance.
Yi

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  • 0 in reply to erik malund

    I build one hardware using AT89S52 and use serial communication to control GSM modem

    Now my question is, I want to monitor the data which I send from AT89S52 and also received data from GSM modem to my PC

    for that purpose I build simple Y cable but it can't work.

    please help me to build the cable.

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  • 0 in reply to erik malund

    I build one hardware using AT89S52 and use serial communication to control GSM modem

    Now my question is, I want to monitor the data which I send from AT89S52 and also received data from GSM modem to my PC

    for that purpose I build simple Y cable but it can't work.

    please help me to build the cable.

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