The waveform generator is now configurable by the serial interface and meas script
This commit is contained in:
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56f8161e99
commit
aa74f4e281
5 changed files with 193 additions and 25 deletions
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@ -55,6 +55,10 @@ uint8_t cc_commands[] = {
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CC_CMD_SAV_DFLT,
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CC_CMD_SET_CLK_CORR,
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CC_CMD_GET_CLK_CORR,
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CC_CMD_SET_WF_FREQ,
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CC_CMD_SET_WF,
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CC_CMD_SET_WF_DC,
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CC_CMD_EN_WF,
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};
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void (*cc_cmd_functions[])() = {
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@ -70,6 +74,10 @@ void (*cc_cmd_functions[])() = {
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CC_CMD_SAV_DFLT_FUNC,
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CC_CMD_SET_CLK_CORR_FUNC,
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CC_CMD_GET_CLK_CORR_FUNC,
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CC_CMD_SET_WF_FREQ_FUNC,
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CC_CMD_SET_WF_FUNC,
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CC_CMD_SET_WF_DC_FUNC,
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CC_CMD_SET_EN_WF_FUNC,
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};
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uint8_t cc_cmd_data_to_read[] = {
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@ -85,6 +93,10 @@ uint8_t cc_cmd_data_to_read[] = {
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CC_CMD_SAV_DFLT_DATA_TO_READ,
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CC_CMD_SET_CLK_CORR_DATA_TO_READ,
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CC_CMD_GET_CLK_CORR_DATA_TO_READ,
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CC_CMD_SET_WF_FREQ_DATA_TO_READ,
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CC_CMD_SET_WF_DATA_TO_READ,
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CC_CMD_SET_WF_DC_DATA_TO_READ,
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CC_CMD_SET_EN_WF_DATA_TO_READ,
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};
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uint8_t cc_read_data[CC_READ_DATA_MAX];
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@ -226,12 +238,21 @@ void cc_startMeasurement()
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uint32_t a1_sum = 0;
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uint16_t i = 0;
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if (freq < 8000)
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// TODO an diesem punkt muss unterschieden werden ob eine waveform ausgegeben werden soll oder eine frequenz, und welche Art von Kurve
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if (freq < WF_FREQ_MAX_HZ)
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{
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setWaveformFrequency(freq);
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setWaveform(WAVEFORM_SINUS);
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if (freq > PWM_MAX_VALUE)
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{
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setWaveform(WAVEFORM_SINUS);
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setWaveformFrequency(freq);
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} else {
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setWaveform(WAVEFORM_DUTYCYCLE);
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setWaveformDC((uint8_t)(freq & 0xff));
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}
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enableWaveformOutput();
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pollWaveformGenerator(); // manually poll the waveformgenerator
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si5351.output_enable(SI5351_CLK0, 0); // disable clock output 0
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delay(1);
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} else {
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disableWaveformOutput();
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si5351.set_freq((uint64_t)freq * 100, SI5351_PLL_FIXED, SI5351_CLK0);
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@ -269,6 +290,7 @@ void cc_startMeasurement()
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send16BitValue(a1_sum);
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sendEOM();
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disableWaveformOutput();
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si5351.output_enable(SI5351_CLK0, 0); // disable clock output 0
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if (freq >= end_freq)
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@ -304,9 +326,16 @@ void cc_enableClk(void)
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sendSOM();
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if (cc_read_data[0] == SI5351_CLK0)
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{
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if (start_freq < 8000)
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if (start_freq < WF_FREQ_MAX_HZ) // < 8kHz
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{
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setWaveformFrequency(start_freq);
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if (start_freq > PWM_MAX_VALUE) // > 8 bit pwm value
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{
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setWaveform(WAVEFORM_SINUS);
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setWaveformFrequency(start_freq);
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} else {
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setWaveform(WAVEFORM_DUTYCYCLE);
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setWaveformDC((uint8_t)(start_freq & 0xff));
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}
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enableWaveformOutput();
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si5351.output_enable(SI5351_CLK0, 0);
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} else {
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@ -394,6 +423,54 @@ void cc_getClkCorrection(void)
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sendEOM();
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}
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void cc_setWFFreq(void)
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{
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uint16_t tmp_freq = read16BitDataFromBuffer(0);
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setWaveformFrequency(tmp_freq);
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sendSOM();
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Serial.write(MSG_TYPE_ANSWER_OK);
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sendEOM();
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}
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void cc_setWF(void)
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{
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uint8_t tmp_wf = cc_read_data[0];
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setWaveform(tmp_wf);
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sendSOM();
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Serial.write(MSG_TYPE_ANSWER_OK);
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sendEOM();
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}
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void cc_setWFDC(void)
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{
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uint8_t tmp_dc = cc_read_data[0];
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setWaveformDC(tmp_dc);
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sendSOM();
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Serial.write(MSG_TYPE_ANSWER_OK);
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sendEOM();
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}
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void cc_enableWF(void)
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{
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uint8_t tmp_en = cc_read_data[0];
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if (tmp_en == 0)
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{
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disableWaveformOutput();
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} else {
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enableWaveformOutput();
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}
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sendSOM();
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Serial.write(MSG_TYPE_ANSWER_OK);
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sendEOM();
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}
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/*****************************************************************************/
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void cc_init()
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@ -1,6 +1,16 @@
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/*****************************************************************************/
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#define WF_FREQ_MAX_HZ 8000
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/*****************************************************************************/
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#define PWM_BIT_WIDTH 8
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#define PWM_PIN 5 // PWM-Pin für DAC0 auf dem Arduino Nano 328
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#define PWM_MAX_VALUE ((1 << PWM_BIT_WIDTH)-1)
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/*****************************************************************************/
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#define MEAS_LOOP_CNT 20
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#define MAIN_LOOP_DELAY_US 63 // 1/63us = ~16kHz
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@ -49,6 +59,10 @@
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#define CC_CMD_SAV_DFLT 0x22
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#define CC_CMD_SET_CLK_CORR 0x23
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#define CC_CMD_GET_CLK_CORR 0x24
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#define CC_CMD_SET_WF_FREQ 0x30
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#define CC_CMD_SET_WF 0x31
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#define CC_CMD_SET_WF_DC 0x32
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#define CC_CMD_EN_WF 0x33
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/*****************************************************************************/
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@ -64,6 +78,10 @@
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#define CC_CMD_SAV_DFLT_FUNC &cc_saveDefaults
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#define CC_CMD_SET_CLK_CORR_FUNC &cc_setClkCorrection
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#define CC_CMD_GET_CLK_CORR_FUNC &cc_getClkCorrection
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#define CC_CMD_SET_WF_FREQ_FUNC &cc_setWFFreq
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#define CC_CMD_SET_WF_FUNC &cc_setWF
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#define CC_CMD_SET_WF_DC_FUNC &cc_setWFDC
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#define CC_CMD_SET_EN_WF_FUNC &cc_enableWF
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/*****************************************************************************/
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@ -79,6 +97,10 @@
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#define CC_CMD_SAV_DFLT_DATA_TO_READ 0
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#define CC_CMD_SET_CLK_CORR_DATA_TO_READ 4
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#define CC_CMD_GET_CLK_CORR_DATA_TO_READ 0
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#define CC_CMD_SET_WF_FREQ_DATA_TO_READ 2
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#define CC_CMD_SET_WF_DATA_TO_READ 1
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#define CC_CMD_SET_WF_DC_DATA_TO_READ 1
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#define CC_CMD_SET_EN_WF_DATA_TO_READ 1
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/*****************************************************************************/
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@ -1,17 +1,16 @@
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#include "Waveforms.h"
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#define PWM_BIT_WIDTH 8
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#define PWM_PIN 5 // PWM-Pin für DAC0 auf dem Arduino Nano 328
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uint8_t wf_wave0 = 0;
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uint8_t wf_pos = 0;
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uint16_t wf_freq = 0;
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uint8_t wf_wave0 = 0;
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uint8_t wf_pos = 0;
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uint16_t wf_freq = 0;
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uint8_t wf_dutyCycle = 0;
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unsigned long wf_sample_us = 0;
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unsigned long wf_prevMicros = 0;
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bool wf_outputEnabled = true; // Variable to control waveform output state
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bool wf_outputEnabled = true; // Variable to control waveform output state
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bool wf_pwm_needs_disabling = true;
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void initWaveformGenerator()
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{
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@ -19,22 +18,24 @@ void initWaveformGenerator()
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setWaveform(WAVEFORM_SINUS);
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// Call the function to set default frequency, here you might want to specify a default frequency
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setWaveformFrequency(WAVEFORM_DEFAULT_FREQ_HZ);
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setWaveformDC(0);
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analogWrite(PWM_PIN, 0);
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}
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void setWaveform(uint8_t waveform0)
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{
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if (waveform0 >= 0 and waveform0 < WAVEFORM_MAXWAVEFORM_NUM)
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{
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// Set default waveforms
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wf_wave0 = waveform0;
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} else {
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// Set default waveforms
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wf_wave0 = WAVEFORM_SINUS;
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}
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}
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void setWaveformFrequency(uint16_t frequency)
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{
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if (frequency >= 1 and frequency < 8000)
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if (frequency >= 1 and frequency < WF_FREQ_MAX_HZ)
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{
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wf_freq = frequency;
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} else {
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@ -43,6 +44,11 @@ void setWaveformFrequency(uint16_t frequency)
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wf_sample_us = 1000000UL / ((unsigned long)wf_freq * WAVEFORM_MAX_SAMPLES_NUM);
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}
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void setWaveformDC(uint8_t dc)
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{
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wf_dutyCycle = dc;
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}
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void enableWaveformOutput()
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{
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wf_outputEnabled = true;
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@ -53,27 +59,48 @@ void disableWaveformOutput()
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wf_outputEnabled = false;
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}
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bool isWaveformEnabled()
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{
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return wf_outputEnabled;
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}
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void pollWaveformGenerator()
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{
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if (wf_outputEnabled)
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{
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unsigned long currentMicros = micros(); // Aktuelle Zeit abrufen
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if (currentMicros - wf_prevMicros >= wf_sample_us)
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if (wf_wave0 != WAVEFORM_DUTYCYCLE)
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{
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wf_prevMicros = currentMicros;
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unsigned long currentMicros = micros(); // Aktuelle Zeit abrufen
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if (currentMicros - wf_prevMicros >= wf_sample_us)
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{
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wf_prevMicros = currentMicros;
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uint16_t sample = map(waveformsTable[wf_wave0][wf_pos], 0, 0xfff, 0, (1 << PWM_BIT_WIDTH)-1);
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sample = constrain(sample, 0, (1 << PWM_BIT_WIDTH)-1);
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analogWrite(PWM_PIN, sample); // write the selected waveform on DAC0
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// analogWrite(PWM_PIN, 128); // write the selected waveform on DAC0
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uint16_t sample = map(waveformsTable[wf_wave0][wf_pos], 0, 0xfff, 0, PWM_MAX_VALUE);
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sample = constrain(sample, 0, PWM_MAX_VALUE);
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// TODO write the selected waveform on DAC0
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analogWrite(PWM_PIN, sample);
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wf_pos++;
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if (wf_pos == WAVEFORM_MAX_SAMPLES_NUM) // Reset the counter to repeat the wave
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wf_pos = 0;
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wf_pos++;
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if (wf_pos == WAVEFORM_MAX_SAMPLES_NUM) // Reset the counter to repeat the wave
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wf_pos = 0;
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}
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} else {
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// WAVEFORM_DUTYCYCLE
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if (analogRead(PWM_PIN) != wf_dutyCycle)
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analogWrite(PWM_PIN, wf_dutyCycle);
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}
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if (!wf_pwm_needs_disabling)
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wf_pwm_needs_disabling = true;
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} else {
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analogWrite(PWM_PIN, 0);
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if (wf_pwm_needs_disabling)
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{
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analogWrite(PWM_PIN, 0);
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wf_pwm_needs_disabling = false;
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}
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}
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}
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@ -10,6 +10,7 @@
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#define WAVEFORM_SINUS 0
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#define WAVEFORM_TRIANGULAR 1
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#define WAVEFORM_SAWTOOTH 2
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#define WAVEFORM_DUTYCYCLE 3
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static int waveformsTable[WAVEFORM_MAXWAVEFORM_NUM][WAVEFORM_MAX_SAMPLES_NUM] = {
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// Sin wave
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@ -43,6 +43,14 @@ parser.add_argument("-c", "--get_config", default=False, help="", action='store_
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parser.add_argument("-l", "--enable_clk", type=int, help="")
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# disable clk
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parser.add_argument("-L", "--disable_clk", type=int, help="")
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# enable/disable WaveForm
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parser.add_argument("-W", "--enable_wf", type=int, help="")
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# WaveForm form (0 sinus, 1 triangular, 2 sawtooth)
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parser.add_argument("-w", "--form_wf", type=int, help="")
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# WaveForm frequency (not related to PWM frequency)
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parser.add_argument("-q", "--freq_wf", type=int, help="")
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# WaveForm PWM duty cycle
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parser.add_argument("-D", "--dc_wf", type=int, help="")
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# save default config
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parser.add_argument("-S", "--save_config", default=False, help="", action='store_true')
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@ -75,6 +83,10 @@ CC_CMD_GET_CONFIG = 0x10
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CC_CMD_EN_CLK = 0x20
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CC_CMD_DIS_CLK = 0x21
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CC_CMD_SAV_DFLT = 0x22
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CC_CMD_SET_WF_FREQ = 0x30
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CC_CMD_SET_WF = 0x31
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CC_CMD_SET_WF_DC = 0x32
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CC_CMD_EN_WF = 0x33
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###############################################################################
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@ -626,6 +638,35 @@ if __name__ == "__main__":
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sendSerialData([CC_CMD_DIS_CLK, args.disable_clk])
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dataSend = dataSend + 1
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if args.enable_wf != None:
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if args.enable_wf < 0 or args.enable_wf > 1:
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args.enable_wf = 0
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print(("Disabling" if args.enable_wf == 0 else "Enabling") + " wave form output")
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sendSerialData([CC_CMD_EN_WF, args.enable_wf])
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dataSend = dataSend + 1
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if args.form_wf != None:
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if args.form_wf < 0 or args.form_wf > 3:
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args.form_wf = 0
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print("Wave form type is set to %d" % (args.form_wf))
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sendSerialData([CC_CMD_SET_WF, args.form_wf])
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dataSend = dataSend + 1
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if args.freq_wf != None:
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if args.freq_wf < 0 or args.freq_wf > 7999:
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args.freq_wf = 0
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print("Wave frequency set to %d" % (args.freq_wf))
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sendSerialData([CC_CMD_SET_WF_FREQ, (args.freq_wf & 0x0000ff00) >> 8,
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(args.freq_wf & 0x000000ff)])
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dataSend = dataSend + 1
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if args.dc_wf != None:
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if args.dc_wf < 0 or args.dc_wf > 255:
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args.dc_wf = 0
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print("PWM duty cycle set to %d" % (args.dc_wf))
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sendSerialData([CC_CMD_SET_WF_DC, args.dc_wf])
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dataSend = dataSend + 1
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if args.save_config == True:
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print("Save default configuration values...")
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sendSerialData([CC_CMD_SAV_DFLT])
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