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en:odroid-ups2 [2016/03/21 16:00] ruppi [ODROID-C1] |
en:odroid-ups2 [2016/04/21 13:18] joy.cho [ODROID-C1/C2] |
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- Detailed connection picture between JP1 of UPS2 and the 40pin header(**J2**) of ODROID-C1. | - Detailed connection picture between JP1 of UPS2 and the 40pin header(**J2**) of ODROID-C1. | ||
| C1|{{:en:ups2:odroid-c1_a_type_ups2-6_1..jpg?300|}}||UPS2|{{:en:ups2:odroid-c1_a_type_ups2-6_2.jpg?300|}}| | | C1|{{:en:ups2:odroid-c1_a_type_ups2-6_1..jpg?300|}}||UPS2|{{:en:ups2:odroid-c1_a_type_ups2-6_2.jpg?300|}}| | ||
+ | |||
+ | |||
+ | Due to hardware limitations, in order to use the UPS2 on ODROID-C2\\ | ||
+ | - Extract the blue cable of the 3-pin socket,\\ | ||
+ | - Connect the 3-pin socket as shown in the figure above the 40 pin Header.\\ | ||
+ | The extracted lines connect the pin #26 of the 40 pin header as shown below.\\ | ||
+ | {{:en:connection_ups2_for_odroidc2.png?400|}} | ||
+ | |||
- | ===== ODROID-C2 ===== | ||
- | - Detailed connection picture between JP1 of UPS2 and the 40pin header(**J2**) of ODROID-C2. | ||
====== ODROID safe shutdown in the event of a power outage ===== | ====== ODROID safe shutdown in the event of a power outage ===== | ||
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The AC_OK signal is connected to PIN#11(GPIO #88) in the 40pin header(**J2**) of ODROID-C1/C2.\\ | The AC_OK signal is connected to PIN#11(GPIO #88) in the 40pin header(**J2**) of ODROID-C1/C2.\\ | ||
The BAT_OK signal is connected to PIN#13(GPIO #116).\\ | The BAT_OK signal is connected to PIN#13(GPIO #116).\\ | ||
- | The POWER_LATCH signal is connected to PIN#15(GPIO #115) on ODROID-C1.\\ | + | The POWER_LATCH signal is connected to PIN#15(GPIO #115) of ODROID-C1.\\ |
- | The POWER_LATCH signal is connected to PIN#15(GPIO #115) on ODROID-C2.\\ | + | The POWER_LATCH signal is connected to PIN#26(GPIO #225) of ODROID-C2.\\ |
**The BAT_OK pin is high when the battery voltage is higher than 3.7V.\\ | **The BAT_OK pin is high when the battery voltage is higher than 3.7V.\\ | ||
Line 119: | Line 125: | ||
The BAT_OK and AC_OK signals are used in the below simple shell script which runs in the background via crontab. | The BAT_OK and AC_OK signals are used in the below simple shell script which runs in the background via crontab. | ||
+ | |||
+ | <WRAP left round important 50%> | ||
+ | Before using UPS3 on ODROID-C2, please check u-boot version. \\ | ||
+ | If the version of yours is the one before Mar 18 2016, update boot loader. \\ | ||
+ | You can find the guide how to check and update U-Boot in the end part of this wiki page. \\ | ||
+ | [ How to check and update U-Boot on ODROID-C2 ] | ||
+ | </WRAP> | ||
==== Auto shutdown Script ==== | ==== Auto shutdown Script ==== | ||
This script checks the status of power and battery.\\ | This script checks the status of power and battery.\\ | ||
Save the following code as ups2.sh in home directory.\\ | Save the following code as ups2.sh in home directory.\\ | ||
- | Note that this script can be used with U3 as well as C1 without modification.\\ | + | Note that this script can be used with U3 as well as C1/C2 without modification.\\ |
<code> | <code> | ||
#!/bin/sh | #!/bin/sh | ||
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if [ $retval -eq 0 ] | if [ $retval -eq 0 ] | ||
then | then | ||
- | echo "battery is low than 3.7V" | + | echo "battery is lower than 3.7V" |
- | if test $MODEL = "ODROID-C2" | + | /sbin/shutdown -P 1 |
- | then | + | |
- | /sbin/poweroff | + | |
- | else | + | |
- | /sbin/shutdown -P 1 | + | |
- | fi | + | |
else | else | ||
echo "battery is good" | echo "battery is good" |