Flash Magic Forum
In-System Programming Support => ARM Cortex => Topic started by: thiagorod on April 03, 2018, 12:29:28 pm
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Hello,
Is it still possible to program the LPC1112 via serial port (using the bootloader) even if the serial port is being used by a different IC (serial-USB converter for instance) ? Or is it necessary to add resistors to one of the branches ?
Regards,
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UART/RS232 is point-to-point and isn't designed for multiple devices to be attached to it. Use jumpers or tri-state outputs instead.
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Thanks for you reply Andy.
I agree with that, I´ve seen some ideas to split the UART, using resistors, diodes, but this is really not recommended, right?
Regards,
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I wouldn't recommend it.
Andy