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8 years, 3 months ago.
SPI Communication not working, running at 0.3V
I'm working with an mbed LPC1768. I uploaded the SPI hello world function to my mbed (https://developer.mbed.org/handbook/SPI). I wasn't getting any result from my SPI device (just 0x0), so i checked the MISO, MOSI, and SCK lines coming from the mbed with a multimeter. I noticed that, while the values were changing, they were changing slowly. Also, they ranged from 0V - 0.3V instead of 3.3V. I think this is the reason communication did not work, but I am not sure. I'm also not sure how to fix it if it is the issue. Any help is appreciated.
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