Allan Wang
/
speedregression
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main.cpp@0:d308aef39cfa, 2012-01-16 (annotated)
- Committer:
- allanw
- Date:
- Mon Jan 16 21:10:27 2012 +0000
- Revision:
- 0:d308aef39cfa
- Child:
- 1:14c0250ab954
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| allanw | 0:d308aef39cfa | 1 | #include "mbed.h" |
| allanw | 0:d308aef39cfa | 2 | |
| allanw | 0:d308aef39cfa | 3 | SPI spi(p11, p12, p13); |
| allanw | 0:d308aef39cfa | 4 | DigitalOut latchpin(p10); |
| allanw | 0:d308aef39cfa | 5 | |
| allanw | 0:d308aef39cfa | 6 | void latch() { |
| allanw | 0:d308aef39cfa | 7 | latchpin = 1; |
| allanw | 0:d308aef39cfa | 8 | latchpin = 1; |
| allanw | 0:d308aef39cfa | 9 | latchpin = 1; |
| allanw | 0:d308aef39cfa | 10 | latchpin = 1; |
| allanw | 0:d308aef39cfa | 11 | latchpin = 1; |
| allanw | 0:d308aef39cfa | 12 | latchpin = 1; |
| allanw | 0:d308aef39cfa | 13 | latchpin = 0; |
| allanw | 0:d308aef39cfa | 14 | } |
| allanw | 0:d308aef39cfa | 15 | |
| allanw | 0:d308aef39cfa | 16 | int main() { |
| allanw | 0:d308aef39cfa | 17 | spi.format(12, 0); |
| allanw | 0:d308aef39cfa | 18 | spi.frequency(16 * 1000 * 1000); |
| allanw | 0:d308aef39cfa | 19 | |
| allanw | 0:d308aef39cfa | 20 | latchpin = 0; |
| allanw | 0:d308aef39cfa | 21 | while (1) { |
| allanw | 0:d308aef39cfa | 22 | for (int i = 0; i < 100; i++) { |
| allanw | 0:d308aef39cfa | 23 | spi.write(0); |
| allanw | 0:d308aef39cfa | 24 | } |
| allanw | 0:d308aef39cfa | 25 | latch(); |
| allanw | 0:d308aef39cfa | 26 | } |
| allanw | 0:d308aef39cfa | 27 | } |