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:
- 15:ae0413277bc6
- Parent:
- 14:ba6ea409ab05
--- a/main.cpp Tue Dec 17 11:41:18 2019 +0000
+++ b/main.cpp Sun Dec 22 06:29:39 2019 +0000
@@ -8,7 +8,7 @@
* Created: October 18th, 2014
* Revised: January 2nd, 2015
* Re-started: June 25th, 2016 ported from F411 to F746
- * Revised: December 12th, 2019
+ * Revised: December 22nd, 2019
*
* Base program: Frequency_counter_w_GPS_1PPS (only for Nucleo-F411RE board)
* https://developer.mbed.org/users/kenjiArai/code/Frequency_Counter_w_GPS_1PPS/
@@ -47,7 +47,6 @@
// Include --------------------------------------------------------------------
#include "mbed.h"
-//#include "rtos.h"
#include "GPSrcvr.h"
#include "DRV8830.h"
#include "ADT7410.h"
@@ -96,27 +95,13 @@
using namespace Frequency_counter;
// Object ---------------------------------------------------------------------
-DigitalOut led_gate(LED1);
-DigitalOut in_frq_slct(PC_9);
-DigitalInOut prescaler10or20(PC_5);
-DigitalIn pa1(PA_1);
-Timer tmr0;
-Timer tmr1;
-Timer tmr2;
-Ticker enter_irq;
-
+//DigitalOut led_gate(LED1);
+DigitalIn pa1(PA_1); // GPS 1PPS input
//**** UART
Serial pc(USBTX, USBRX);
-
//**** Req. Counter
FRQ_CUNTR fc(CLOCK_BASE); // External clock freq.
-//**** Peltier temperature control
-I2C i2cBus(PB_9,PB_8); // SDA, SCL
-DRV8830 heater(i2cBus, (uint8_t)DRV8830ADDR_00); // H brige
-PID pid(8.0f, 85.0f, 4.0f, 0.7f); // PID for oven
-ADT7410 t(i2cBus, ADT7410ADDR_NN); // inside oven temp.
-
// RAM ------------------------------------------------------------------------
// all display data
dispDef disp_data;
@@ -161,6 +146,7 @@
void measure_freq_recipro(void const *args)
{
int32_t run2stop;
+ Timer tmr0;
while(true) {
tmr0.reset();
@@ -209,6 +195,13 @@
static uint32_t error_count = 3600;
static int32_t keep_1sec;
+ //**** Peltier temperature control
+ I2C i2cBus(PB_9,PB_8); // SDA, SCL
+ DRV8830 heater(i2cBus, (uint8_t)DRV8830ADDR_00); // H brige
+ PID pid(8.0f, 85.0f, 4.0f, 0.7f); // PID for oven
+ ADT7410 t(i2cBus, ADT7410ADDR_NN); // inside oven temp.
+ Timer tmr2;
+
t.set_config(OPERATION_MODE_CONT + RESOLUTION_16BIT);
pid.setInputLimits(0.0f, 5.0f);
pid.setOutputLimits(0.0f, 5.0f);
@@ -260,6 +253,7 @@
void display_data(void const *args)
{
int32_t tim_remain;
+ Timer tmr1;
while(true){
tmr1.reset();