alwye/get_throttled

Human-readable vcgencmd get_throttled

get_throttled's Issues

The program reports throttling issues on 0x0

When I run this program on my Pi (3B) with Raspberry Pi OS (Debian GNU/Linux 11 \n \l
) the output of './get_throttled.sh' is
Current issues:
~ Under-voltage detected
~ Arm frequency capped
~ Currently throttled
~ Soft temperature limit active

Previously detected issues:
No throttling issues detected.

But the output of 'vcgencmd get_throttled' is
throttled=0x0

I corrected this by changing line 41 from:
if [ "$CURRENT_HEX" == "0" ]; then
with
if [ "$CURRENT_HEX" == "0" ] || [ -z $CURRENT_HEX ]; then

bit_n is currently only incremented when a bit is set

  bit_n=0
  for (( i=${#CURRENT_BIN}-1; i>=0; i--)); do
    if [ "${CURRENT_BIN:$i:1}" = "1" ]; then
      echo "~ ${ISSUES_MAP[$bit_n]}"
      bit_n=$((bit_n+1))
    fi

bit_n only gets incremented on a bit being 1, so the first bit (no matter where it is) will always report ISSUES_MAP[0] "under-voltage", the second bit set will report ISSUES_MAP[1] "Arm frequency capped", etc.

bit_n should be incremented unconditionally to give the correct decode.

(From https://forums.raspberrypi.com/viewtopic.php?t=347970 where a user was complaining that his Pi was always reporting under-voltage)

possible backwards?

I was testing this out and I think you might have the bit order backwards.

I have my RPi 4b on a 15w (5v*3A) charger and when it hits 80C, it returns 8, which is matching up as 'Undervoltage', and I'm pretty sure that should be 'Soft Limit'. Also, at 85C it returns 6 which is 0110, so 'Frequency' and 'Throttle'

I think it should be reading the other way. Probably easiest would be to just renumber them:
[0]="Soft temperature limit active"
[1]="Currently throttled"
[2]="Arm frequency capped"
[3]="Under-voltage detected"
and probably the same for the past_bits, but I haven't verified that yet. Probably, though, after using it for a while it's returning 'e', so 1110. If it's backwards that would be everything except 'Undervoltage'

could give you a PR if you like