J.W van de Poll

Hi All Well I am getting nowhere fast. When plugging the board into a Rpi Zero 2w , i2cdetect -l shows i2c-1 and i2c-2 i2cdetect -y 1 shows 00x48 i2cdetect -y 2 shows oox49 (my second board) and a few others like 3a,50,59 Re-wrote the image on the Opi Zero 2w to Debian as I was getting tired of the booting problems with ArmBian. Followed the manual on ALL the instructions. i2cdetect -l shows i2c-0 i2c-1 ,i2c-2 and i2c-3 i2cdetect -y 0 does not show any adapters connected i2cdetect -y 1 shows UU on 36 i2cdetect -y 2 shows 30 and 50 i2cdetect -y 3 does not show any adapters VERY SLOWLY. Orangepi-config /system/Hardware has been tried with just i2c-0 ticked or all three ticked. Tried ticking phi2c-0 to 3 but that made no difference, still no 00x48 visible anywhere. I have tried about 6 different OS Images, all to no avail. Even tried the Rpi image shown on the Opi site. So, I have to conclude (unless someone corrects me) that it is the board that is the problem or some firmware on the board. Not sure if I should learn how to upgrade the firmware. Regards

Hi All First post here. Have been using Rpi Zero 2W for a couple of years in various installations and other then speed been happy with it. So got an Orange Pi Zero 2 W in an attempt to use it as a plug in replacement for the Rpi. Installed Armbian and other than a booting issue, it all works. The first obstacle is the i2c, it is obvious that is nowhere near as easy as a Rpi to set up. I have read many posts and get more confused as the days go on. So, the question: Is there a step by step instruction on how to enable I2C. I am connecting 2 x ADS1115 A2D converters, one at &H48 and the 2nd at &H49. When I use i2cdetect -l i2c-0 i2c DesignWare HDMI i2c-1 i2c mv64xxx_i2c Adapter i2c-2 i2c ditto When I use i2cdetect -y 0 &h30 and &h50 show up When I use i2cdetect -y 1 I get UU on &h36 In software, I can do a fd = i2c_open("/dev/i2c-0") or use i2c-1 rc = i2cselect (fd,&h48,0) BUT, I cannot write or read to the device.(obviously because it does not exist according to i2cdetect ) My armbianEnv.txt has overlays=i2c3 changed from i2c0 after reading some posts. dtparam i2c_arm=on In armbian-config /system/kernel/booto001/ I have ticked i2c0-pi and for 2 and 3 as well. So after all that I have no idea how to proceed. Regards EDIT: kern.log has repeated entries as follows: mv64xxx_i2c 5002000 Error applying settings reverse things back