Comments on: Building a GPS Logger http://nada-labs.net/2010/building-a-gps-logger/ Straight from the workbench of Nathan Dyer. Sat, 05 May 2012 13:25:53 +0000 hourly 1 http://wordpress.org/?v=3.3.2 By: nada http://nada-labs.net/2010/building-a-gps-logger/comment-page-1/#comment-21656 nada Fri, 24 Feb 2012 12:43:14 +0000 http://nada-labs.net/?p=20#comment-21656 After a quick glance, the MBED has 2x SPI interfaces which is great for using an SD-Card. However, from what I can see, it has no asynchronous ports that are compatable with RS232. Interfacing to the GPS module could be tricky in this case, but not impossible. I did see a tutorial somewhere (Hackaday?) that describes how to use a SPI serial port as an 8-bit rs232 receiver. SPI communications (for the SD-Card) are much easier to implement in software than the asynchronous comms used with GPS modules. If on change interrupts are not available then you're probably out of luck. After a quick glance, the MBED has 2x SPI interfaces which is great for using an SD-Card. However, from what I can see, it has no asynchronous ports that are compatable with RS232. Interfacing to the GPS module could be tricky in this case, but not impossible. I did see a tutorial somewhere (Hackaday?) that describes how to use a SPI serial port as an 8-bit rs232 receiver.

SPI communications (for the SD-Card) are much easier to implement in software than the asynchronous comms used with GPS modules. If on change interrupts are not available then you’re probably out of luck.

]]> By: shalini http://nada-labs.net/2010/building-a-gps-logger/comment-page-1/#comment-21651 shalini Fri, 24 Feb 2012 09:45:57 +0000 http://nada-labs.net/?p=20#comment-21651 hi, is it possible to build the same project using MBED microcontroller? hi, is it possible to build the same project using MBED microcontroller?

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