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atrf-path/atrf-path.c: initialize the receiver only once, not for each sweep
atrf-path -g ... 10 10 time: before 2.08 s after 1.92-1.93 s (92-93%) - atrf-path.c (set_channel, init_common): moved setting of the channel to separate function, for better granularity - atrf-path.c (init_common, init_tx, init_rx, sample, do_sweep): the init_* functions no longer set the channel; use set_channel - atrf-path.c (main): initialize the receiver only once
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@ -29,26 +29,31 @@
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#define DEFAULT_POWER 15
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static void init_common(struct atrf_dsc *dsc, int trim, int chan)
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static void set_channel(struct atrf_dsc *dsc, int chan)
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{
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atrf_reg_write(dsc, REG_PHY_CC_CCA, (1 << CCA_MODE_SHIFT) | chan);
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}
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static void init_common(struct atrf_dsc *dsc, int trim)
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{
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atrf_reg_write(dsc, REG_TRX_STATE, TRX_CMD_TRX_OFF);
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atrf_reg_write(dsc, REG_XOSC_CTRL,
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(XTAL_MODE_INT << XTAL_MODE_SHIFT) | trim);
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atrf_set_clkm(dsc, 0);
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atrf_reg_write(dsc, REG_PHY_CC_CCA, (1 << CCA_MODE_SHIFT) | chan);
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}
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static void init_tx(struct atrf_dsc *dsc, int trim, int power, int chan)
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static void init_tx(struct atrf_dsc *dsc, int trim, int power)
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{
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init_common(dsc, trim, chan);
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init_common(dsc, trim);
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set_power_step(dsc, power, 0);
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}
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static void init_rx(struct atrf_dsc *dsc, int trim, int chan)
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static void init_rx(struct atrf_dsc *dsc, int trim)
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{
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init_common(dsc, trim, chan);
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init_common(dsc, trim);
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atrf_reg_write(dsc, REG_TRX_STATE, TRX_CMD_RX_ON);
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}
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@ -66,7 +71,8 @@ static void sample(const struct sweep *sweep, int chan, int cont_tx,
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int sum = 0, min = -1, max = -1;
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double offset = tx_power_step2dBm(sweep->tx, sweep->power);
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init_tx(sweep->tx, sweep->trim_tx, sweep->power, chan);
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init_tx(sweep->tx, sweep->trim_tx, sweep->power);
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set_channel(sweep->tx, chan);
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usleep(155); /* table 7-2, tTR19 */
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cw_test_begin(sweep->tx, cont_tx);
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@ -90,7 +96,6 @@ static void sample(const struct sweep *sweep, int chan, int cont_tx,
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res->avg = rssi_to_dBm((double) sum/sweep->samples)-offset;
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res->min = rssi_to_dBm(min)-offset;
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res->max = rssi_to_dBm(max)-offset;
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}
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@ -99,7 +104,7 @@ void do_sweep(const struct sweep *sweep, struct sample *res)
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int chan;
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for (chan = 11; chan <= 26; chan++) {
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init_rx(sweep->rx, sweep->trim_rx, chan);
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set_channel(sweep->rx, chan);
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sample(sweep, chan, CONT_TX_M500K, res++);
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sample(sweep, chan, CONT_TX_P500K, res++);
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}
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@ -237,6 +242,7 @@ int main(int argc, char **argv)
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return 1;
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sweep.power = 15-power;
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init_rx(sweep.rx, sweep.trim_rx);
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if (graphical)
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gui(&sweep, sweeps);
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else
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