mirror of
https://github.com/clockworkpi/WiringPi.git
synced 2025-12-13 00:08:51 +01:00
b1dfc186ef
for kernels 4.8 onwards. Some very old stuff might break. Additional fixes for the ISR code and some tweaks here and there. I've removed the checks for some operations that might fail when using the gpiomem interface - which is now the default way of doing things - if your program segfaults, then you may need to use sudo on it.
188 lines
4.0 KiB
Bash
Executable File
188 lines
4.0 KiB
Bash
Executable File
#!/bin/bash
|
|
#
|
|
# pintest
|
|
# Test the Pi's GPIO port
|
|
# Copyright (c) 2013-2015 Gordon Henderson
|
|
#################################################################################
|
|
# This file is part of wiringPi:
|
|
# A "wiring" library for the Raspberry Pi
|
|
#
|
|
# wiringPi is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU Lesser General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# wiringPi is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public License
|
|
# along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
|
#################################################################################
|
|
|
|
|
|
# logErr pin, expected got
|
|
################################################################################
|
|
|
|
logErr ()
|
|
{
|
|
if [ $errs = 0 ]; then
|
|
echo ""
|
|
fi
|
|
echo " --> Pin $1 failure. Expected $2, got $3"
|
|
let errs+=1
|
|
}
|
|
|
|
|
|
# printErrorCount
|
|
################################################################################
|
|
|
|
printErrCount()
|
|
{
|
|
if [ $errs = 0 ]; then
|
|
echo "No faults detected."
|
|
elif [ $errs = 1 ]; then
|
|
echo "One fault detected."
|
|
else
|
|
echo "$errs faults detected"
|
|
fi
|
|
}
|
|
|
|
|
|
# testPins start end
|
|
################################################################################
|
|
|
|
testPins()
|
|
{
|
|
start=$1
|
|
end=$2
|
|
errs=0
|
|
|
|
printf "%30s %2d:%2d: " "$3" $1 $2
|
|
|
|
# Set range to inputs
|
|
|
|
for i in `seq $start $end`; do
|
|
gpio mode $i in
|
|
done
|
|
|
|
# Enable internal pull-ups and expect to read high
|
|
|
|
for i in `seq $start $end`; do
|
|
gpio mode $i up
|
|
if [ `gpio read $i` = 0 ]; then
|
|
logErr $i 1 0
|
|
fi
|
|
done
|
|
|
|
# Enable internal pull-downs and expect to read low
|
|
|
|
for i in `seq $start $end`; do
|
|
gpio mode $i down
|
|
if [ `gpio read $i` = 1 ]; then
|
|
echo "Pin $i failure - expected 0, got 1"
|
|
let errs+=1
|
|
fi
|
|
done
|
|
|
|
# Remove the internal pull up/downs
|
|
|
|
for i in `seq $start $end`; do
|
|
gpio mode $i tri
|
|
done
|
|
|
|
if [ $errs = 0 ]; then
|
|
echo " OK"
|
|
else
|
|
printErrCount
|
|
fi
|
|
|
|
let totErrs+=errs
|
|
}
|
|
|
|
|
|
intro()
|
|
{
|
|
cat <<EOF
|
|
PinTest
|
|
=======
|
|
|
|
This is a simple utility to test the GPIO pins on your Raspberry Pi.
|
|
|
|
NOTE: All GPIO peripherals must be removed to perform this test. This
|
|
includes serial, I2C and SPI connections. You may get incorrect results
|
|
if something is connected and it interferes with the test.
|
|
|
|
This test can only test the input side of things. It uses the internal
|
|
pull-up and pull-down resistors to simulate inputs. It does not test
|
|
the output drivers.
|
|
|
|
You will need to reboot your Pi after this test if you wish to use the
|
|
serial port as it will be left in GPIO mode rather than serial mode.
|
|
|
|
This test only tests the original pins present on the Rev A and B. It
|
|
does not test the extra pins on the Revision A2, B2 nor the A+ or B+
|
|
|
|
Please make sure everything is removed and press the ENTER key to continue,
|
|
EOF
|
|
|
|
echo -n "or Control-C to abort... "
|
|
read a
|
|
}
|
|
|
|
|
|
# Start here
|
|
################################################################################
|
|
|
|
intro
|
|
gpio unexportall
|
|
|
|
errs=0
|
|
totErrs=0
|
|
|
|
echo ""
|
|
|
|
# Main pins
|
|
|
|
testPins 0 7 "The main 8 GPIO pins"
|
|
|
|
# SPI
|
|
|
|
testPins 10 14 "The 5 SPI pins"
|
|
|
|
# Serial
|
|
|
|
testPins 15 16 "The serial pins"
|
|
|
|
# I2C - Needs somewhat different testing
|
|
# due to the on-board pull-up's
|
|
|
|
echo -n " The I2C pins 8: 9: "
|
|
errs=0
|
|
gpio mode 8 in
|
|
gpio mode 9 in
|
|
|
|
if [ `gpio read 8` = 0 ]; then
|
|
echo "Pin 8 failure - expected 1, got 0"
|
|
let errs+=1
|
|
fi
|
|
|
|
if [ `gpio read 9` = 0 ]; then
|
|
echo "Pin 9 failure - expected 1, got 0"
|
|
let errs+=1
|
|
fi
|
|
|
|
if [ $errs = 0 ]; then
|
|
echo " OK"
|
|
else
|
|
printErrCount
|
|
fi
|
|
|
|
echo ""
|
|
if [ $totErrs != 0 ]; then
|
|
echo ""
|
|
echo "Faults detected! Output of 'readall':"
|
|
gpio readall
|
|
fi
|