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I would like to connect this GPS sensor: https://buy.garmin.com/shop/shop.do?pID=161 to an mbed serial port. The GPS port can be connected to a PC RS232 port even if the level is 0-3V. The manual said "compatible with RS232 or TTL voltage levels, RS-232 polarity" Because the voltage swing is limited to 3V, you can connect it to a RS232 PC port and also directly to an MCU serial port but with inverted level. I've connected it to an FTDI FT232 USB to serial, using a MAX232 chip to invert the RX & TX levels.
I know that Microchip PIC UART modules can be configured in normal or inverted level mode. I'm not able to find this kind of configuration in mbed serial library. Does anyone know if this is possible too on mbed with a special configuration, but without using additional hardware.
thanks in advance.