mordae/pico-sdr
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Make sweep step configurable

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Signed-off-by: Jan Hamal Dvořák <mordae@anilinux.org>
This commit is contained in:
Jan Hamal Dvořák 2024-01-28 16:25:54 +01:00
parent 5df6824b3a
commit 6086d51274
1 changed files with 2 additions and 3 deletions
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src/main.c
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@ -689,7 +689,7 @@ static void command(const char *cmd)
puts("bias I O - output negated I to O"); puts("bias I O - output negated I to O");
puts("rx N FREQ - receive on pin N"); puts("rx N FREQ - receive on pin N");
puts("tx N FREQ - transmit on pin N"); puts("tx N FREQ - transmit on pin N");
puts("sweep N F G MS - sweep from F to G with MS at step"); puts("sweep N F G S - sweep from F to G with given step");
puts("noise N - transmit random noise"); puts("noise N - transmit random noise");
return; return;
} }
@ -820,14 +820,13 @@ static void command(const char *cmd)
channel_config_set_dreq(&dma_conf, pio_get_dreq(pio1, 2, true)); channel_config_set_dreq(&dma_conf, pio_get_dreq(pio1, 2, true));
dma_channel_configure(tx_dma, &dma_conf, &pio1->txf[2], lo_cos, UINT_MAX, true); dma_channel_configure(tx_dma, &dma_conf, &pio1->txf[2], lo_cos, UINT_MAX, true);
for (int i = 0; i < steps; i++) { for (int i = 0; i < steps; i += x) {
int c = getchar_timeout_us(0); int c = getchar_timeout_us(0);
if ('\n' == c || '\r' == c) if ('\n' == c || '\r' == c)
break; break;
float actual = lo_freq_init(start + i * step_hz); float actual = lo_freq_init(start + i * step_hz);
printf("frequency = %10.6f MHz\n", actual / MHZ); printf("frequency = %10.6f MHz\n", actual / MHZ);
sleep_ms(x);
} }
dma_channel_abort(tx_dma); dma_channel_abort(tx_dma);