@crispyoz said in GPIO pins SD pins as GPIO pins:
rmmod mtk_sd
Then I expect you can use the GPIO like so:
gpioctl dirout-high 22
gpioctl get 22
gpioctl dirout-low 22
gpioctl get 22
cat /sys/class/gpio/gpio22/value
voltage always showing HIGH. LOW method not happening.
SD_WP_21 always showing HIGH(3.45V)
SD_CD_23 always showing HIGH(3.45V)
@crispyoz
@crispyoz @crispyoz I am using onion omega2S+ with a custom-designed board. Onion to GSM modem using USB interface connection. please refer to the below image.
@crispyoz i am not able to get device logs. what i did wrong below?
@crispyoz hi sir,
I was connected one GSM mode to onion omega through USB connection. It has given 2 USB channels /ttyUSB2 and /ttyUSB3. when i was restarted my modem these channels changing. How to keep com ports static.
@crispyoz said in dhcp ipaddress not happening.:
traceroute -4 8.8.8.8
sir my default gateway is 172.16.1.2 this I was added using the following below command.
route add default gateway 172.16.1.2 eth0
after vi /etc/resolve.conf // added nameserver 8.8.8.8 8.8.4.4
after added this I am able to ping the google network.
Thanks for supporting sir.
@crispyoz said in dhcp ipaddress not happening.:
logread | grep -i dhcp
i am not able to ping google address.
this is what i am using in the network configuration.
@jossvall thanks sir,
I will check and let you know.
@crispyoz Hi sir
i have connected the ethernet cable to onion omega2S+, but IP address not happening it is showing another IP address class range. i was tried /etc/init.d/network restart even though it's not working. My class range is 172.16.1.* range series.
@crispyoz Hi sir how are you?
i have connected 5V adapter to our customized board. using LMR i am converting 5V to 3.456V and passing to modem+onion. here modem was turned-on but the onion was not ON and i checked onion PIN 8 & 9th pins getting 3.46V. what was the problem and why onion is not getting-ON?
@crispyoz sir it was working previously, while working time suddenly I got this issue. but here i am able to ping the device IP. using telnet port forbidden error happening. I was done onion restart after also port was not opened. after done Modbus device restart port was opened. Is there any way to kill that 502 port issue from terminal side?
@Lazar-Demin
can you please help me i am getting pymodbus port 502 connection refused?. what could be the issue?.
from pymodbus.client.sync import ModbusTcpClient
import time
import logging
logging.basicConfig()
log = logging.getLogger()
log.setLevel(logging.DEBUG)
host = '192.168.0.200'
port = 502
client = ModbusTcpClient(host,502)
client.connect()
while True:
rr = client.read_holding_registers(0x0001,2,unit=2)
print(rr)
#assert(rr.function_code < 0x80) # test that we are not an error
#print rr.registers
time.sleep(5)
error:
root@Omega-6834:~# python modbus_ip.py
ERROR:pymodbus.client.sync:Connection to (192.168.0.200, 502) failed: timed out
ERROR:pymodbus.client.sync:Connection to (192.168.0.200, 502) failed: timed out
Traceback (most recent call last):
File "modbus_ip.py", line 13, in <module>
rr = client.read_holding_registers(0x0001,2,unit=2)
File "/usr/lib/python2.7/site-packages/pymodbus/client/common.py", line 114, in read_holding_registers
return self.execute(request)
File "/usr/lib/python2.7/site-packages/pymodbus/client/sync.py", line 107, in execute
raise ConnectionException("Failed to connect[%s]" % (self.str()))
pymodbus.exceptions.ConnectionException: Modbus Error: [Connection] Failed to connect[ModbusTcpClient(192.168.0.200:502)]
Note: i am able to pinging 192.168.0.200 this IPaddress.
@crispyoz
gpio 22 not created
cd /sys/class/gpio/
root@Omega-6834:/sys/class/gpio# ls
export gpiochip0 gpiochip32 gpiochip64 unexport
root@Omega-6834:/sys/class/gpio# ls
export gpiochip0 gpiochip32 gpiochip64 unexport
i enabled high gpio22, but voltages not showing.
@crispyoz
they don't mention how to utilize SDIO pins clearly. They have mentioned clearly below the GPIO pins
@crispyoz
How to use SD_CD pin 23 & SD_WD pin 22 as GPIO pins.
@danilo-burdese hi plz use below method for making a PPP internet purpose.
step1: opkg update
opkg install chat comgt
Step2: vi /etc/config/network
config interface 'hologram'
option defaultroute 1
option device /dev/ttyS1
option apn jionet //jionet place use your network apn
option service umts
option proto 3g
option 'pppd_options' 'noipdefault'
Step3: vi /etc/config/firewall
this you have to copy config forwarding above line.
config zone
option name 'cellular'
option output 'ACCEPT'
option forward 'REJECT'
option masq '1'
option mtu_fix '1'
option network 'hologram'
option input 'ACCEPT'
Step4: /etc/init.d/firewall restart
Step5: /etc/init.d/network restart
that's it thank you.
