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Dependencies: 4DGL-uLCD-SE SDFileSystem
main.cpp@1:4ed94566512a, 2016-09-16 (annotated)
- Committer:
- fkhan39
- Date:
- Fri Sep 16 03:29:36 2016 +0000
- Revision:
- 1:4ed94566512a
- Parent:
- 0:570683b2d0c9
- Child:
- 2:20b2a7eb4bd8
added part 1
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
fkhan39 | 0:570683b2d0c9 | 1 | #include "mbed.h" |
fkhan39 | 0:570683b2d0c9 | 2 | |
fkhan39 | 1:4ed94566512a | 3 | AnalogOut aout(p18); |
fkhan39 | 1:4ed94566512a | 4 | AnalogIn ain(p15); |
fkhan39 | 0:570683b2d0c9 | 5 | DigitalOut led1(LED1); |
fkhan39 | 1:4ed94566512a | 6 | DigitalOut led2(LED2); |
fkhan39 | 1:4ed94566512a | 7 | DigitalOut led3(LED3); |
fkhan39 | 1:4ed94566512a | 8 | DigitalOut led4(LED4); |
fkhan39 | 0:570683b2d0c9 | 9 | |
fkhan39 | 1:4ed94566512a | 10 | int main() |
fkhan39 | 1:4ed94566512a | 11 | { |
fkhan39 | 1:4ed94566512a | 12 | // part 1 A |
fkhan39 | 1:4ed94566512a | 13 | const double pi = 3.141592653589793238462; |
fkhan39 | 1:4ed94566512a | 14 | const double amplitude = 1.0f; |
fkhan39 | 1:4ed94566512a | 15 | const double offset = 65535/2; // 0xFFFF/2 |
fkhan39 | 1:4ed94566512a | 16 | double rads = 0.0; |
fkhan39 | 1:4ed94566512a | 17 | uint16_t sample = 0; |
fkhan39 | 1:4ed94566512a | 18 | |
fkhan39 | 1:4ed94566512a | 19 | while(1) { |
fkhan39 | 1:4ed94566512a | 20 | // analog out |
fkhan39 | 1:4ed94566512a | 21 | |
fkhan39 | 1:4ed94566512a | 22 | for (int i = 0; i < 720; i++) { |
fkhan39 | 1:4ed94566512a | 23 | rads = (pi * i) / 180.0f; |
fkhan39 | 1:4ed94566512a | 24 | sample = (uint16_t)(amplitude * (offset * (cos(rads + pi))) + offset); |
fkhan39 | 1:4ed94566512a | 25 | aout.write_u16(sample); |
fkhan39 | 1:4ed94566512a | 26 | } |
fkhan39 | 1:4ed94566512a | 27 | |
fkhan39 | 1:4ed94566512a | 28 | |
fkhan39 | 1:4ed94566512a | 29 | // analog in |
fkhan39 | 1:4ed94566512a | 30 | led1 = (ain > 0.2f) ? 1 : 0; |
fkhan39 | 1:4ed94566512a | 31 | led2 = (ain > 0.4f) ? 1 : 0; |
fkhan39 | 1:4ed94566512a | 32 | led3 = (ain > 0.6f) ? 1 : 0; |
fkhan39 | 1:4ed94566512a | 33 | led4 = (ain > 0.8f) ? 1 : 0; |
fkhan39 | 1:4ed94566512a | 34 | wait(.01); |
fkhan39 | 0:570683b2d0c9 | 35 | } |
fkhan39 | 1:4ed94566512a | 36 | } |