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-rw-r--r--example/README2
-rwxr-xr-xexample/ice4pi_prog5
2 files changed, 3 insertions, 4 deletions
diff --git a/example/README b/example/README
index b4a8b50..a1841ce 100644
--- a/example/README
+++ b/example/README
@@ -9,4 +9,4 @@ Assuming you are running on a Raspberry Pi 2-4 or Zero (tested with bullseye):
3. Load the rot.bin file to the shield:
- make load
+ sudo make load
diff --git a/example/ice4pi_prog b/example/ice4pi_prog
index c747db8..81f4aaa 100755
--- a/example/ice4pi_prog
+++ b/example/ice4pi_prog
@@ -1,5 +1,5 @@
#!/bin/bash
-echo 24 > /sys/class/gpio/export
+echo 24 > /sys/class/gpio/export || true
echo out > /sys/class/gpio/gpio24/direction
echo 1 >/sys/class/gpio/gpio24/value
sleep 1
@@ -10,6 +10,5 @@ dd if=${1} conv=notrunc of=image
flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=20000 -w image
#workaround first time fails after initial programming
flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=20000 -w image
-echo in > /sys/class/gpio/gpio24/direction
-echo 24 > /sys/class/gpio/unexport
+echo 1 >/sys/class/gpio/gpio24/value