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122 lines
3.7 KiB
122 lines
3.7 KiB
//
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// Created by MightyPork on 2018/02/03.
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//
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#include "platform.h"
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#include "unit_base.h"
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#define ADC_INTERNAL
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#include "_adc_internal.h"
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/** Load from a binary buffer stored in Flash */
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void UADC_loadBinary(Unit *unit, PayloadParser *pp)
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{
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struct priv *priv = unit->data;
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uint8_t version = pp_u8(pp);
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(void)version;
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priv->channels = pp_u16(pp);
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priv->enable_tsense = pp_bool(pp);
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priv->enable_vref = pp_bool(pp);
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priv->sample_time = pp_u8(pp);
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priv->frequency = pp_u32(pp);
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if (version >= 1) {
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priv->buffer_size = pp_u16(pp);
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}
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if (version >= 2) {
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priv->averaging_factor = pp_u16(pp);
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}
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}
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/** Write to a binary buffer for storing in Flash */
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void UADC_writeBinary(Unit *unit, PayloadBuilder *pb)
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{
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struct priv *priv = unit->data;
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pb_u8(pb, 2); // version
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pb_u16(pb, priv->channels);
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pb_bool(pb, priv->enable_tsense);
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pb_bool(pb, priv->enable_vref);
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pb_u8(pb, priv->sample_time);
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pb_u32(pb, priv->frequency);
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pb_u16(pb, priv->buffer_size);
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pb_u16(pb, priv->averaging_factor);
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}
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// ------------------------------------------------------------------------
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/** Parse a key-value pair from the INI file */
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error_t UADC_loadIni(Unit *unit, const char *key, const char *value)
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{
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bool suc = true;
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struct priv *priv = unit->data;
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if (streq(key, "channels")) {
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priv->channels = parse_pinmask(value, &suc);
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}
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else if (streq(key, "enable_tsense")) {
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priv->enable_tsense = str_parse_yn(value, &suc);
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}
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else if (streq(key, "enable_vref")) {
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priv->enable_vref = str_parse_yn(value, &suc);
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}
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else if (streq(key, "sample_time")) {
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priv->sample_time = (uint8_t) avr_atoi(value);
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if (priv->sample_time > 7) return E_BAD_VALUE;
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}
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else if (streq(key, "frequency")) {
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priv->frequency = (uint32_t) avr_atoi(value);
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}
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else if (streq(key, "buffer_size")) {
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priv->buffer_size = (uint16_t) avr_atoi(value);
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}
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else if (streq(key, "avg_factor")) {
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priv->averaging_factor = (uint16_t) avr_atoi(value);
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if (priv->averaging_factor > 1000) return E_BAD_VALUE;
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}
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else {
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return E_BAD_KEY;
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}
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if (!suc) return E_BAD_VALUE;
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return E_SUCCESS;
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}
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/** Generate INI file section for the unit */
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void UADC_writeIni(Unit *unit, IniWriter *iw)
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{
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struct priv *priv = unit->data;
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iw_comment(iw, "Enabled channels, comma separated");
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iw_comment(iw, "0-7 = A0-A7, 8-9 = B0-B1, 10-15 = C0-C5");
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iw_entry(iw, "channels", "%s", pinmask2str_up(priv->channels, unit_tmp512));
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iw_comment(iw, "Enable Tsense channel (#16)");
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iw_entry(iw, "enable_tsense", str_yn(priv->enable_tsense));
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iw_comment(iw, "Enable Vref channel (#17)");
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iw_entry(iw, "enable_vref", str_yn(priv->enable_vref));
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iw_cmt_newline(iw);
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iw_comment(iw, "Sampling time (0-7)");
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iw_entry(iw, "sample_time", "%d", (int)priv->sample_time);
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iw_comment(iw, "Sampling frequency (Hz)");
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iw_entry(iw, "frequency", "%d", (int)priv->frequency);
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iw_comment(iw, "Sample buffer size (bytes, 2 per channels per sample)");
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iw_comment(iw, "- a report is sent when 1/2 of the circular buffer is filled");
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iw_comment(iw, "- the buffer is shared by all channels");
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iw_comment(iw, "- insufficient buffer size can lead to data loss");
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iw_entry(iw, "buffer_size", "%d", (int)priv->buffer_size);
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iw_cmt_newline(iw);
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iw_comment(iw, "Exponential averaging coefficient (permil, range 0-1000 ~ 0.000-1.000)");
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iw_comment(iw, "- used formula: y[t]=(1-k)*y[t-1]+k*u[t]");
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iw_comment(iw, "- available only for direct readout (i.e. not used in block capture)");
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iw_entry(iw, "avg_factor", "%d", priv->averaging_factor);
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}
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