DHCOR STM32MP1 Linux: Difference between revisions
From Wiki-DB
Jump to navigationJump to search
| Line 4: | Line 4: | ||
===Unsing the internal RTC=== | === Unsing the internal RTC === | ||
:Read out the current date | :Read out the current date | ||
:{| class="wikitable" | :{| class="wikitable" | ||
| Line 42: | Line 42: | ||
||Save the current time to the hardware clock||''# hwclock -w'' | ||Save the current time to the hardware clock||''# hwclock -w'' | ||
|} | |} | ||
=== RS-485 on picoITX === | === RS-485 on picoITX === | ||
Revision as of 09:00, 22 July 2020
PAGE IS UNDER CONSTRUCTION!
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
