RTC power up for Tinker Board R2.0

[RTC power up for Tinker Board R2.0]

hello tinker experts, 

I'm having issues trying to use rtc in my tinker board, I want it to function so that i get the correct time & date even when I power on my device without any internet connection, 

now the issues I'm facing are 

when i connect the rtc module to the tinker board by connecting pin3 and pin5 to the corresponding pins and a cmos battery already connected to rtc module, im getting

linaro@linaro-alip:/$ sudo i2cdetect -y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f

00: -- -- -- -- -- -- -- -- -- -- -- -- --

10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

50: 50 51 52 53 -- -- -- -- -- -- -- -- -- -- -- --

60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

70: -- -- -- -- -- -- -- --

what does this mean and the thing i dont understand is even when i disconnect the rtc module and make sure there are no i2c connections are connected on board

im getting 

linaro@linaro-alip:/$ sudo hwclock -r -f /dev/rtc0

2024-05-28 13:26:15.099234+05:30

my hardware config is 

##### Hardware Interface Config #####

## Note: fiq_debugger and uart3 use the same pin. Set fiq_debugger

first while $

## Note: uart4 and spi0 are the same pins. Set the latter one while

both on. ##

## Note: uart2 is the same pins to pwm2 and pwm3. Set the latter one

while both$

intf:fiq_debugger=on

intf:i2c1=on

intf:i2c4=on

#intf:spi0=off

#intf:spi2=off

#intf:pwm2=off

#intf:pwm3=off

intf:pcm_i2s=on

intf:uart1=on

intf:uart2=on

intf:uart3=on

intf:uart4=on

i dont understand why, i just want to get correct date and time between power on and offs even when there is no internet connection..

can some one guide me through the steps required to achieve this functionality

[Tinker Board R2.0 serial communication error]

Hello @tooz   thank you for the reply, I already figured out the issue. It was in the hardware connection cable I have corrected it and now I'm able to do data transmission.

[Tinker Board R2.0 serial communication error]

Hello Tinker experts,

I want your help regarding tinker board r2.0 about GPIO pins, let me explain what I'm trying to do 

I want to send and receive data through two tinker boards from the port ttyS1 with hardware flow control enabled 

both boards have same configuration of serial port ttyS1 and hardware flow is enabled but when I send data through a board using python

import serial

ser = serial.Serial('/dev/ttyS1', baudrate=9600, rtscts=True)

# Print initial RTS and CTS status
print("RTS:", ser.rts)
print("CTS:", ser.cts)

# Transmit data
ser.write(b'Hello')

# Print RTS and CTS status after transmission
print("RTS:", ser.rts)
print("CTS:", ser.cts)

I'm getting the output showing CTS = False before and after data transmission, and in the other board I can't see any data incoming in minicom this is same for the other boards also I have connected GP5B1(TX) , GP5B0(RX) , VCC, GND, GP5B2(CTS) and GP5B3(RTS) in both boards through RS232 connection in both boards

but when I connect the ttyS1 to USB of my windows laptop and send data through dock light with hardware flow control enabled I'm able to send and receive data

I can't read the data even if the hardware flow control is disabled between two tinker boards..

the issue occurs when I connect two tinker boards with rs232

please help me with this problem.. 

[serial communication between two tinker boards with hardware flow control enabled using rs232 cable]

 I want your help regarding tinker board r2.0 about GPIO pins, let me explain what I'm trying to do 

I want to send and receive data through two tinker boards from the port ttyS1 with hardware flow control enabled 

both boards have same configuration of serial port ttyS1 and hardware flow is enabled but when I send data through a board using python--

import serial

ser = serial.Serial('/dev/ttyS1', baudrate=9600, rtscts=True)

# Print initial RTS and CTS status
print("RTS:", ser.rts)
print("CTS:", ser.cts)

# Transmit data
ser.write(b'Hello')

# Print RTS and CTS status after transmission
print("RTS:", ser.rts)
print("CTS:", ser.cts)

I'm getting the output showing O/P = (CTS = False) before and after data transmission each and every time I execute it, and in the other board I can't see any data incoming in minicom and this is vice versa for the other board. I have connected GP5B1(TX) , GP5B0(RX) , VCC, GND, GP5B2(CTS) and GP5B3(RTS) in both boards through RS232 cable .

But when I connect the ttyS1 to USB of my windows laptop and send data through dock light with hardware flow control enabled I'm able to send and receive data

The issue occurs when I connect two tinker boards with rs232

Please help me with this problem..