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hexagon5un / AVR-Programming

Code examples for the book "Make: AVR Programming"
http://littlehacks.org/AVR-Programming
MIT License
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Chapter 12 Footstep Detector - Minor Fix for Serial Comm #13

Closed TheEJM3 closed 8 years ago

TheEJM3 commented 8 years ago

This isn't really a fix, just an alternative for terminals to read the serial data as ASCII instead of bytes:

Original code: transmitByte(adcValue - 512 + 127); transmitByte((lowValue >> 4) - 512 + 127); transmitByte((highValue >> 4) - 512 + 127); _delay_ms(CYCLE_DELAY);

Replace with: printByte(adcValue - 512 + 127); printString(" - "); printByte((lowValue >> 4) - 512 + 127); printString(" - "); printByte((highValue >> 4) - 512 + 127); printString("\r\n"); _delay_ms(CYCLE_DELAY);

The serial comm will look like this afterward: 124 - 124 - 125 124 - 124 - 125 124 - 124 - 125 124 - 124 - 125 ...

Hope this helps!

-TheEJM3

TheEJM3 commented 8 years ago

Forgot to add...

Elliot, great book. I've been learning a ton. I jumped right into learning the Cortex M series and took a step back after finding a lack of structured tutorials. This is a great introduction to embedded system programming in C. Fun and hands on. Thank you.

-TheEJM3

hexagon5un commented 8 years ago

That's awesome -- both the fix and that you've used the book to springboard into the ARM chips. Thanks very much for submitting.