William Marsh / Mbed OS DACandticker_sample_with_debug

Lab3 example program 2 with debug code

DAC Ticker

  • Sample code for part 2 of lab 3 using the DAC, called from a Ticker.
  • Note that to use AnalogOut from the Ticker (an ISR), we create a version without locking.
  • This version has extra code for debugging

sineTable.h@4:42b85520dca6, 2020-02-06 (annotated)

Committer:
WilliamMarshQMUL
Date:
Thu Feb 06 22:42:30 2020 +0000
Revision:
4:42b85520dca6
Parent:
0:5307f49cd305 
Change to sleep_for

Who changed what in which revision?

UserRevisionLine numberNew contents of line
WilliamMarshQMUL 0:5307f49cd305 1 // Look up table for a sine wave as 16 bits
WilliamMarshQMUL 0:5307f49cd305 2 // Note that it is possible to construct the full period from
WilliamMarshQMUL 0:5307f49cd305 3 // the first quarter, but the code is more complex
WilliamMarshQMUL 0:5307f49cd305 4 //
WilliamMarshQMUL 0:5307f49cd305 5 // These number were calcuated using a spreadsheet
WilliamMarshQMUL 0:5307f49cd305 6 const uint16_t sine[] = {
WilliamMarshQMUL 0:5307f49cd305 7 32768, 35980, 39161, 42280, 45308, 48215, 50973, 53556,
WilliamMarshQMUL 0:5307f49cd305 8 55938, 58098, 60014, 61667, 63042, 64125, 64906, 65378,
WilliamMarshQMUL 0:5307f49cd305 9 65535, 65378, 64906, 64125, 63042, 61667, 60014, 58098,
WilliamMarshQMUL 0:5307f49cd305 10 55938, 53556, 50973, 48215, 45308, 42280, 39161, 35980,
WilliamMarshQMUL 0:5307f49cd305 11 32768, 29556, 26375, 23256, 20228, 17321, 14563, 11980,
WilliamMarshQMUL 0:5307f49cd305 12 9598, 7438, 5522, 3869, 2494, 1411, 630, 158,
WilliamMarshQMUL 0:5307f49cd305 13 0, 158, 630, 1411, 2494, 3869, 5522, 7438,
WilliamMarshQMUL 0:5307f49cd305 14 9598, 11980, 14563, 17321, 20228, 23256, 26375, 29556
WilliamMarshQMUL 0:5307f49cd305 15 } ;