From 6086d512740f100db83c0694ef0b77646663cddf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20Hamal=20Dvo=C5=99=C3=A1k?= <mordae@anilinux.org>
Date: Sun, 28 Jan 2024 16:25:54 +0100
Subject: [PATCH] Make sweep step configurable
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Signed-off-by: Jan Hamal Dvořák <mordae@anilinux.org>
---
src/main.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/src/main.c b/src/main.c
index 112917f..6b32870 100644
--- a/src/main.c
+++ b/src/main.c
@@ -689,7 +689,7 @@ static void command(const char *cmd)
puts("bias I O - output negated I to O");
puts("rx N FREQ - receive 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");
return;
}
@@ -820,14 +820,13 @@ static void command(const char *cmd)
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);
- for (int i = 0; i < steps; i++) {
+ for (int i = 0; i < steps; i += x) {
int c = getchar_timeout_us(0);
if ('\n' == c || '\r' == c)
break;
float actual = lo_freq_init(start + i * step_hz);
printf("frequency = %10.6f MHz\n", actual / MHZ);
- sleep_ms(x);
}
dma_channel_abort(tx_dma);