Istvan Cserny
Simple program to demonstrate the basic functions of the analog comparator of the FRDM-KL25Z board.
Dependencies: ComparatorIn mbed
Fork of
ComparatorIn_demo
by 
Frank Vannieuwkerke
ComparatorIn demo
Simple program to demonstrate the basic functions of the analog comparator of the FRDM-KL25Z board.
The blue LED flashes after 2 sec delay. The green LED is driven by the interrupts of the Analog Comparator (LED ON at rising edge, LED OFF at falling edge).
The output of the Analog Comparatir is also tested by polling, the result is printed out at the standard output (UART0). The default speed and format (9600 bps, 8,N,1) are used.
Credits
This program is based on the ComparatorIn library and the ComparatorIn_demo program written by Frank Vannieuwkerke
Used library:
- ComparatorIn written by Frank Vannieuwkerke
Hardware requirements:
- FRDM-KL25 board
- CdS photoresistor pulled up by 10 k
Revision 4:07dd82e3f934, committed 2013-07-20
- Comitter:
- frankvnk
- Date:
- Sat Jul 20 16:31:19 2013 +0000
- Parent:
- 3:fc232e248bd0
- Child:
- 5:5161b8d6e695
- Commit message:
- int_en removed
; rising/falling changed
; improved function names
Changed in this revision
| ComparatorIn.lib | Show annotated file Show diff for this revision Revisions of this file |
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/ComparatorIn.lib Sun Jun 16 20:06:30 2013 +0000 +++ b/ComparatorIn.lib Sat Jul 20 16:31:19 2013 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/frankvnk/code/ComparatorIn/#18170968fdc3 +http://mbed.org/users/frankvnk/code/ComparatorIn/#048474f28d28
--- a/main.cpp Sun Jun 16 20:06:30 2013 +0000
+++ b/main.cpp Sat Jul 20 16:31:19 2013 +0000
@@ -28,7 +28,6 @@
compi.rising(&cmp_rise_ISR); // Set pointer to rising interrupt function
compi.falling(&cmp_fall_ISR); // Set pointer to falling interrupt function
compi.treshold(0.3); // Set comparator threshold to 1V = 0.3 * 3.3V
- compi.int_en(1); // Enable comparator interrupts
while(1)
{