Diff: frq_cuntr_full.h

Revision:

5:bb04c4a3b5ba

Parent:

4:9d3b3f0a3882

--- a/frq_cuntr_full.h	Thu Jan 01 05:04:20 2015 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,219 +0,0 @@
-/*
- * mbed Library / Frequency Counter with GPS 1PPS Compensation
- *      Frequency Counter Hardware relataed program
- *      Only for ST Nucleo F411RE
- *
- * Copyright (c) 2014 Kenji Arai / JH1PJL
- *  http://www.page.sannet.ne.jp/kenjia/index.html
- *  http://mbed.org/users/kenjiArai/
- *      Additional functions and modification
- *      started: October   18th, 2014
- *      Revised: January    1st, 2015
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
- * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
- * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef        MBED_FRQ_CUNTR
-#define        MBED_FRQ_CUNTR
-
-#include "mbed.h"
-
-// please comment out when normal run mode
-//#define DEBUG           // use Communication with PC(UART)
-
-/*
-    CAUTION:
-    If you select internal clock (100MHz), you need consider PLL clock behavior.
-    PLL clock drifts over 70Hz (increase frequency) within 30 to 40 second
-    then suddenly back to low frequency and increase again.
-    Even you prepare precision external clock, this frequency drift cannot avoid.
-    Comment out "BASE_EXTERNAL_CLOCK" is only for checking!!
- */
-#define BASE_EXTERNAL_CLOCK
-
-//  use avaraged 1pps data
-#define ONEPPS_AVE
-
-namespace Frequency_counter
-{
-
-#define CNT_BF_SIZE     120             // 1PPS data save size
-
-/** Frequency Counter program
- * Only for ST Nucleo F411RE Board
- *
- * @code
- * #include "mbed.h"
- *
- * using namespace Frequency_counter;
- *
- * // PC_6,PC_7 & PB_6 use for Timer3 & 4(16+16bit)
- * // PA_0,PA_1 & PB_10 use for Timer2(32bit)
- * // PA_8 & PC_7 use for MCO (Test purpose)
- * FRQ_CUNTR   fc(PC_6, 1.0, 24.999982f); //Input port, gate time[sec] & External clock freq.
- *
- * int main() {
- *   uint32_t counter_1pps = 0;
- *   double new_frequency = 0;
- *   // This is for test purpose
- *   fc.port_mco1_mco2_set(4);      // Clk/4 ->1/1(100MHz) cannot measure!!
- *   fc.read_frequency_TIM2(1.0);   // read TIM2 source frequency (test)
- *   fc.read_frequency_TIM3P4(1.0); // read TIM3 source frequency (test)
- *   while(true) {
- *      while (fc.status_1pps() == 0) {;}
- *      counter_1pps = fc.read_avarage_1pps();
- *      while (fc.status_freq_update() == 0) {;}
- *      new_frequency = fc.read_freq_data();
- *      printf("1PPS/ave = %9d , FREQUENCY = %11.3f\r\n", counter_1pps, new_frequency);
- *   }
- * }
- * @endcode
- */
-
-class FRQ_CUNTR
-{
-public:
-
-    /** Configure data pin (Not changeable)
-      * @param Freq. input pin + Gate time[sec] + External clock[MHz]
-      */
-    FRQ_CUNTR(PinName f_in, double gt, double ex_clock);
-
-    /** Set gate time
-      * @param gate time [sec]
-      * @return gate time (range 50mS to 1 minute)
-      */
-    double set_gate_time(double gt);
-
-    /** Set external clock frequency
-      * @param frequency e.g. 25.000000 [MHz]
-      * @return none
-      */
-    void set_external_clock(double ex_clock);
-
-    /** Read gate time
-      * @param none
-      * @return gate time (range 50mS to 1 minute)
-      */
-    double read_gate_time(void);
-
-    /** Read status (new frequency data is available or not)
-      * @param none
-      * @return !=0: new data is avairable, 0: not yet
-      */
-    uint32_t status_freq_update(void);
-
-    /** Read new frequency data
-      * @param none
-      * @return frequency data
-      */
-    double read_freq_data(void);
-
-    /** Read avarage measued data GPS 1PPS
-      * @param none
-      * @return Frequency
-      */
-    uint32_t read_avarage_1pps(void);
-
-    /** Read newest measued data GPS 1PPS
-      * @param none
-      * @return Frequency
-      */
-    uint32_t read_newest_1pps(void);
-
-    /** Read status (new 1PPS data is available or not)
-      * @param none
-      * @return !=0: new data is avairable, 0: not yet
-      */
-    uint32_t status_1pps(void);
-
-    /** Read GPS status
-      * @param none
-      * @return 1: GPS is ready
-      */
-    uint8_t status_gps(void);
-
-    /** This is a "TEST PURPOSE" function
-      * Check PA0 pin input or internal clock frequency
-      * @param none
-      * @return Frequency
-      */
-    uint32_t read_frequency_TIM2(float gate_time);
-
-    /** This is a "TEST PURPOSE" function
-      * Check PC6 pin input frequency
-      * @param none
-      * @return Frequency
-      */
-    uint32_t read_frequency_TIM3P4(float gate_time);
-
-    /** This is a "TEST PURPOSE" function
-      * Output clock from pin PA8 & PC9 uses for MCO_1 & MCO_2
-      * @param none
-      * @return none
-      */
-    void port_mco1_mco2_set(uint8_t select);
-
-    /** This is a "DEBUG PURPOSE" function
-      * print internal data (need to define "DEBUG"
-      * @param none
-      * @return none
-      */
-    void debug_printf_internal_data(void);
-
-protected:
-    DigitalIn _pin;
-
-    void initialize_Freq_counter(void);     // Initialize timers
-    // Internal clock (100MHz) or External clock(?MHz) and IC2 for GPS 1pps signal measurement
-    void initialize_TIM2(void);
-    // Initialize TIM3 and TIM4 as 32bit counter (TIM3(16bit) + TIM4(16bit))
-    void initialize_TIM3P4(void);
-    uint32_t set_1PPS_data(void);           // Set GPS 1PPS counter value
-    uint32_t read_ic2_counter_TIM2(void);   // Read TIM2 captured counter value
-    uint32_t check_ic2_status_TIM2(void);   // Check TIM2 IC2 status
-    uint32_t read_ic2_counter_TIM3P4(void); // Read TIM3+4(as 32bit) captured counter value
-    uint32_t check_ic2_status_TIM3P4(void); // Check TIM3 IC2 & TIM4 IC1 status
-    uint8_t  read_oc_port_status(void);     // Check TIM2 OC port
-
-private:
-    double   newest_frequency;
-    double   gate_time;
-    double   ex_clock_freq;
-    uint32_t ex_clk_base;
-    uint32_t clk_hi_const;
-    uint32_t clk_upper_limit;
-    uint32_t clk_lower_limit;
-    uint8_t  gps_ready;
-    // TIM2
-    uint32_t counter_tim2;
-    uint32_t old_cntr_tim2;
-    // TIM3+4
-    uint32_t counter_tim3p4;
-    uint32_t old_cntr_tim3p4;
-    // 1PPS data
-    uint32_t onepps_newest;
-    uint32_t onepps_cnt[CNT_BF_SIZE];
-    uint32_t onepps_num;
-    uint64_t onepps_cnt_avarage;
-    uint8_t  onepps_buf_full;
-    uint8_t  onepps_ready_flg;
-
-};
-
-/*
-    Interrupt handler does NOT work following code
-    NVIC_SetVector(TIM2_IRQn, (uint32_t)FRQ_CUNTR::irq_ic2_TIM2);
-    From this reason, I wrote below code and set interrupt handler out side "FRQ_CUNTR" class
-    NVIC_SetVector(TIM2_IRQn, (uint32_t)irq_ic2_TIM2);
- */
-void irq_ic2_TIM2(void);    // TIM2 IC2 Interrupt control
-void irq_ic2_TIM3P4(void);  // TIM3 IC2 Interrupt control (same signal connected to TIM4 IC1)
-
-}   // Frequency_counter
-
-#endif  // MBED_FRQ_CUNTR