examples_waveforms.c

Wafevorms

#include "examples.h"

int32_t CAEN_MCA_EXAMPLES_EnableWaveforms(CAEN_MCA_HANDLE device, bool enabled) {
    char *value = calloc(PARAMINFO_NAME_MAXLEN, sizeof(*value));

    if (enabled)
        strncpy(value, "TRUE", PARAMINFO_NAME_MAXLEN - 1);
    else
        strncpy(value, "FALSE", PARAMINFO_NAME_MAXLEN - 1);

    CAEN_MCA_HANDLE *parameter = CAEN_MCA_GetChildHandleByName(device, CAEN_MCA_HANDLE_PARAMETER, "PARAM_WAVEFORMS");

    int32_t ret = CAEN_MCA_SetData(parameter, CAEN_MCA_DATA_PARAMETER_VALUE, DATAMASK_VALUE_CODENAME, value);

    if (ret != CAEN_MCA_RetCode_Success) {
        // Error
        fprintf(stderr, "%s(): failed. Error: '%"PRIi32"'.\n", __func__, ret);
    }
    free(value);

    return ret;
}

int32_t CAEN_MCA_EXAMPLES_GetWaveforms(CAEN_MCA_HANDLE device, int32_t channel_id, int16_t *atrace1, int16_t *atrace2, uint8_t *dtrace1, uint8_t *dtrace2, uint32_t *len) {
    int32_t ret = CAEN_MCA_RetCode_Success;

    CAEN_MCA_HANDLE parameter = CAEN_MCA_GetChildHandleByName(device, CAEN_MCA_HANDLE_PARAMETER, "PARAM_RECLEN");

    // To get the number of sample, we need the record length and the sample period
    uint32_t length = 0;

    // Get record length (in ns)
    double rl;
    ret |= CAEN_MCA_GetData(parameter, CAEN_MCA_DATA_PARAMETER_VALUE, DATAMASK_VALUE_NUMERIC, &rl);

    // Get sample period (in ps)
    uint32_t tsample_ps;
    ret |= CAEN_MCA_GetData(device, CAEN_MCA_DATA_BOARD_INFO, DATAMASK_BRDINFO_TSAMPLE_PS, &tsample_ps);

    // Get waveforms
    CAEN_MCA_HANDLE channel = CAEN_MCA_GetChildHandle(device, CAEN_MCA_HANDLE_CHANNEL, channel_id);

    ret |= CAEN_MCA_GetData(
        channel,
        CAEN_MCA_DATA_WAVEFORM,
        DATAMASK_WAVEFORM_TRACE1 |
        DATAMASK_WAVEFORM_TRACE2 |
        DATAMASK_WAVEFORM_DTRACE1 |
        DATAMASK_WAVEFORM_DTRACE2,
        atrace1,
        atrace2,
        dtrace1,
        dtrace2
    );

    if (ret != CAEN_MCA_RetCode_Success) {
        // Error
        fprintf(stderr, "%s(): failed. Error: '%"PRIi32"'.\n", __func__, ret);
    }

    else {
        length = (uint32_t)rl * 1000 / tsample_ps;
    }

    if (len != NULL) *len = length;

    return ret;
}