Show pagesourceOld revisionsBacklinksBack to top × Serial connection garbled characters Issue: When connected via serial to my device, I can see only garbled output and strange characters in putty. Example: my▒--!#▒▒▒▒▒▒▒▒▒▒▒▒R▒▒럣▒▒▒▒▒▒E▒#7!%▒▒9▒-#-▒7!#5▒▒H▒▒▒▒▒▒▒E▒#7!%▒▒▒▒#7!%▒=▒▒▒%-57▒75▒!▒5'-%--#1▒▒R ▒▒띣▒▒▒▒▒▒E▒%▒▒A%=9▒▒▒▒▒▒▒▒▒▒%=9▒▒s-▒S5▒▒▒▒▒▒▒▒▒▒▒ ▒▒▒띣▒▒▒▒▒▒E▒%▒▒A%=9▒▒▒▒▒▒▒▒▒▒%=9▒▒{-'7▒W-%5▒▒▒▒▒ ▒▒▒▒▒▒▒▒▒▒▒▒▒R▒▒띣▒▒▒▒▒▒E▒%▒▒A%=9▒▒▒▒▒▒▒▒▒▒▒R▒▒뛣▒▒▒▒▒▒E▒)%!7'!=75▒7!#5▒'!=7-#1▒)5'▒%!7'5▒3▒59▒%!7'5 ▒7▒▒▒▒R▒▒۟▒▒▒▒▒▒▒E▒;'=#▒▒!▒▒5/▒▒▒▒▒5#57▒;'!9)-#1▒=5▒▒R▒▒۟▒▒▒▒▒▒▒E▒;'=#▒▒!▒▒5/▒▒▒▒▒5#57▒7-=;'57▒=5▒▒R▒▒۟ ▒▒▒▒▒▒▒E▒75-95▒5/▒▒▒▒5#57▒!▒%!75▒▒▒▒▒▒▒▒▒E▒75-95▒5▒▒5#57▒!▒%!75▒▒R▒▒▒▒▒▒▒▒▒▒▒R▒▒▒▒▒▒▒▒▒E▒m_▒▒▒}ww[ yacs▒cuWwuSAyo}cqu▒▒▒;'=#▒▒'-#)▒;59!%5▒=7▒5#57▒3!-#1▒=5▒▒R▒▒▒▒▒▒▒▒▒E▒m_▒▒▒}ww[yacs▒cuWwuSAU_▒▒▒;'=# Root causes: Faulty GND connection Faulty other connection Wrong serial connection settings (e.g. wrong speed) Wrong voltage level (e.g. 5V i/o 3.3V) Solutions: Make sure your connections are right, e.g. properly soldered. Try different settings, e.g. all speeds from 9600 up to 115200 Use serial adapter with correct voltage level for your device Links: Serial port troubleshooting FAQ, before installation, install openwrt, serial connection This website uses cookies. By using the website, you agree with storing cookies on your computer. Also you acknowledge that you have read and understand our Privacy Policy. If you do not agree leave the website.OKMore information about cookies FAQ before installation install openwrt serial connection Last modified: 2019/09/11 11:36by tmomas