From 2f32b0cd9d0d8cce07e29a87161c574b204ccfe5 Mon Sep 17 00:00:00 2001 From: Stefan Rueger Date: Fri, 26 Jun 2026 02:23:17 +0100 Subject: [PATCH] Condition notice on having read the JTAG clock --- src/jtag3.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/src/jtag3.c b/src/jtag3.c index 1966439a..c473cc65 100644 --- a/src/jtag3.c +++ b/src/jtag3.c @@ -1077,16 +1077,18 @@ static int jtag3_initialize(const PROGRAMMER *pgm, const AVRPART *p) { if(my.set_sck == jtag3_set_sck_xmega_jtag && (str_starts(pgmid, "pickit4") || str_starts(pgmid, "snap"))) { double bclk = 0; if(pgm->get_sck_period) - pgm->get_sck_period(pgm, &bclk); + if(pgm->get_sck_period(pgm, &bclk) < 0) + bclk = 0; if(1/bclk < 32e3 || 1/bclk > 7500e3) {// Invalid clock speed. Should be between 32kHz - 7.5MHz xmega_default_jtag_bitclock = 7500; // Use a default Xmega JTAG bitclock of 7500 kHz - pmsg_notice2("%s(): programmer has an invalid JTAG clock speed. Setting default speed\n", __func__); + if(bclk) + pmsg_notice2("%s(): programmer has an invalid JTAG clock speed, setting default speed\n", __func__); } } } if(pgm->bitclock || xmega_default_jtag_bitclock) { - unsigned int clock = pgm->bitclock? 1E-3/pgm->bitclock: xmega_default_jtag_bitclock; // kHz + unsigned int clock = pgm->bitclock? 1e-3/pgm->bitclock: xmega_default_jtag_bitclock; // kHz if(!(pgm->extra_features & HAS_BITCLOCK_ADJ)) pmsg_warning("setting bitclock despite HAS_BITCLOCK_ADJ missing in pgm->extra_features\n");