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Update copyright headers to use SPDX id's

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Allen Hill
2026-06-23 17:51:29 -07:00
parent 0b0c9335f9
commit c895034bb2
24 changed files with 92 additions and 395 deletions
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src/avclan/target/avr-attiny3216/timing_avr.h
+8 -4
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@@ -1,12 +1,16 @@
// Copyright (C) 2015 Allen Hill <allenofthehills@gmail.com>
// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef TIMING_AVR_H
#define TIMING_AVR_H
// AVR ATtiny3216 timing parameters. Derives F_CPU (needed by avr-libc, e.g.
// util/delay.h) and the bus-timer (TCB) tick period from the CMake-provided
// FREQSEL / CLK_PRESCALE / TCB_CLKSEL, then hands the generic timing.h a TICK_US
// (microseconds per TCB tick) so the physical bit-phase durations resolve to
// TCB-tick counts. TICK_US == TCB_TICK / 1000, so every derived constant is
// numerically identical to the previous F_CPU/TCB_CLKSEL formulation.
// FREQSEL / CLK_PRESCALE / TCB_CLKSEL, then hands the generic timing.h a
// TICK_US (microseconds per TCB tick) so the physical bit-phase durations
// resolve to TCB-tick counts. TICK_US == TCB_TICK / 1000, so every derived
// constant is numerically identical to the previous F_CPU/TCB_CLKSEL
// formulation.
#define __CLKCTRL_PDIV_2X_gc 2
#define __CLKCTRL_PDIV_4X_gc 4