DHCOR STM32MP1 Linux: Difference between revisions
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== Linux Userspace Commands == | == Linux Userspace Commands == | ||
'''Unsing the internal RTC''' | |||
:Read out the current date | |||
:{| class="wikitable" | |||
|<tt>''# date</tt> | |||
|} | |||
:Set a specific system time | |||
:{| class="wikitable" | |||
|<tt>''# date -s "2020-01-30 10:00:00"</tt> | |||
|} | |||
:Save the current system time to the RTC of the STM32MP1 | |||
:{| class="wikitable" | |||
|<tt>''# hwclock -w</tt> | |||
|} | |||
:'''Unsing the internal RTC''' | :'''Unsing the internal RTC''' | ||
Revision as of 08:58, 22 July 2020
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Linux Userspace Commands
Unsing the internal RTC
- Read out the current date
# date
- Set a specific system time
# date -s "2020-01-30 10:00:00"
- Save the current system time to the RTC of the STM32MP1
# hwclock -w
- Unsing the internal RTC
- At first the time needs to be set:
Display current time # date Change time # date -s "2020-01-30 10:00:00"
- Next save the current time to the internal RTC:
Save the current time to the hardware clock # hwclock -w
RS-485 on picoITX
- RS-485 device
DHCOM UART 2 /dev/ttySTM2
- Compilation on target
gcc tty_rs485_test.c -o tty_rs485_test
- Set tty device to raw mode
stty -F /dev/ttySTM2 115200 cs8 raw -echo
- Send data with demo program
./tty_rs485_test /dev/ttySTM2
- Receive data with demo program
./tty_rs485_test /dev/ttySTM2
- Download example source code
