mirror of
https://github.com/MCKero6423/uv-k5-v3-emulator.git
synced 2026-10-02 11:07:31 +00:00
mckero
542515d5ad
The probe scripts, run.sh, trace_run.sh, webui.py and two emulator tests each named the same hardcoded firmware from a source tree that is not in this repository. They now resolve QEMU and the firmware the way tools/uvk5_testenv.py does -- environment, then PATH, then whatever the checkout has -- and skip with a reason when there is nothing. webui.py's --qemu and --elf lost their author defaults too: a bare qemu-system-arm through PATH, and no firmware until one is uploaded, which the page already reports.
45 lines
1.3 KiB
Bash
Executable File
45 lines
1.3 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# Measure how fast a SYSTICK_DelayUs loop is converging.
|
|
#
|
|
# r0 holds the target tick count, r1 the accumulated elapsed count, so sampling
|
|
# both twice gives the rate and an estimate of how long the delay will take.
|
|
set -uo pipefail
|
|
|
|
# shellcheck source=tools/uvk5_elf.sh
|
|
. "$(dirname "$0")/uvk5_elf.sh"
|
|
ELF=$(uvk5_find_elf) || { echo "SKIP no firmware found; set ELF or put one in assets/firmware" >&2; exit 0; }
|
|
GAP="${1:-4}"
|
|
SCRIPT=$(mktemp --suffix=.gdb)
|
|
trap 'rm -f "$SCRIPT"' EXIT
|
|
|
|
cat >"$SCRIPT" <<'EOF'
|
|
set confirm off
|
|
set pagination off
|
|
target remote :1234
|
|
info registers r0 r1
|
|
detach
|
|
quit
|
|
EOF
|
|
|
|
read_regs() {
|
|
gdb-multiarch -batch -x "$SCRIPT" "$ELF" 2>/dev/null \
|
|
| awk '/^r0 /{t=strtonum($2)} /^r1 /{e=strtonum($2)} END{print t, e}'
|
|
}
|
|
|
|
first=$(read_regs)
|
|
sleep "$GAP"
|
|
second=$(read_regs)
|
|
|
|
awk -v a="$first" -v b="$second" -v gap="$GAP" 'BEGIN {
|
|
split(a, x, " "); split(b, y, " ")
|
|
target = y[1]; from = x[2]; to = y[2]
|
|
rate = (to - from) / gap
|
|
printf "target=%d elapsed %d -> %d (%.0f ticks/s)\n", target, from, to, rate
|
|
if (rate > 0 && target > to)
|
|
printf "remaining: %.1f s\n", (target - to) / rate
|
|
else if (target <= to)
|
|
print "delay already satisfied"
|
|
else
|
|
print "not advancing"
|
|
}'
|