Kenji Arai
Frequency counter using GPS 1PPS signal and temperature controlled 50MHz Base clock. Ported from F411 Frequency Counter.
Dependencies: QEI DRV8830 PID ADT7410 TextLCD Frq_cuntr_Nucleo-F746ZG RingBuffer
Fork of
Frequency_Counter_w_GPS_1PPS
by 
Kenji Arai
Please refer following.
/users/kenjiArai/notebook/frequency-counters/
Diff: main.cpp
- Revision:
- 4:e7d16ef216d4
- Parent:
- 3:603f4efe3985
- Child:
- 5:af9fa3d0731c
diff -r 603f4efe3985 -r e7d16ef216d4 main.cpp
--- a/main.cpp Tue Jun 18 14:15:38 2013 +0000
+++ b/main.cpp Tue Jun 18 14:18:04 2013 +0000
@@ -2,9 +2,10 @@
// CLOCK OUT to PWM1[6] Sample with Freq Counter using Cap2.0
// For LPC1768-mbed
//
-// Reference: 1MHz Clock Out Code and Comment - http://mbed.org/forum/mbed/topic/733/
+// Reference: 5MHz Clock Out Code and Comment - http://mbed.org/forum/mbed/topic/733/
//
// !! To Self Measurement Output Clock, Connect p21 <-> p30 with jumper wire.
+// 2013.6.18 : Wrong comment about MR6 and Duty fix.
//
#include "mbed.h"
@@ -51,7 +52,8 @@
}
int main() {
- PWM6_SETCLK(96*5) ; // Outout mbed's "PWM6" pin to 96MHZ/19 = 5.052MHz (Approx)
+ PWM6_SETCLK(19) ; // Outout mbed's "PWM6" pin to 96MHZ/19 = 5.052MHz (Approx)
+ // PWM6_SETCLK(96) ; // Outout mbed's "PWM6" pin to 96MHZ/96 = 1.000MHz (Approx)
P30_INIT_CTR();
while(1){
P30_RESET_CTR();