Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => iMX233 => Topic started by: StevenBowtie on November 17, 2012, 06:10:44 AM

Title: Debug Port: Wrong character set?
Post by: StevenBowtie on November 17, 2012, 06:10:44 AM
Hi All,
I've finally got the iMX233 Micro to boot, however the data I'm receiving is not printing correctly in PuTTY or minicom. It is set for 115200 baud, Data bits: 8, Stop bits: 1, No Parity, and all the encoding settings available and what I get is the following:

5%£££¦Jú!%¿-'¥'-#¥#1¿£ëhRi£Sª+ë]êuV¿¯%%¡¿3-'5§¿£££´ÞVêºjúKªÚ#5'¿%!7'5£££Sª+ë_NQi                                                         5%£££¦Jú!%¿-'¥'-#¥#1¿£ëSª+ëYHE¤Qiú;=#§¿
'5¿9!#9#¿;!!¿-#¿5'¿åëIHÓ´ÚªZ¿s}W}g¿y!'7¿#!¿'!=7¿¡'-;¡%!7'5¡££Aag-#O-#!¡%!7'5£75¿                                                         ëååëVQÚ-#1¿cW_¿5¿#7£åëIHÓ´ÚªZ¿s}W}g¿y!'7¿#!¿'!=7¿¡'-;¡%!7'5¡££Aag-#O-#!¡%!7'5£75                                                         ëååëVQÚ-#1¿a5#{Yw¿Y59¿Y/5''¿5¿/7´ÞmcmW¿hÝ¿»=#-#1¿!!¿3=¿7-=;'57¿3!¿%-#5ÊåëmcmW¿!¿                                                         %!¿55¿'53¿-#¿/-¿5'Êåë

This is only a sample of where it pauses after, what I would guess, is the boot sequence and it responds to input, but not with the typed characters. I've tried using both the "OLinuXino_Debian_FS" and "debian_rootfs" file systems using the "debian_mx23.img" boot image. I've also removed R17 as suggested in other topics. Thanks in advance for the help!
Title: Re: Debug Port: Wrong character set?
Post by: jeroends on November 17, 2012, 06:36:52 PM
I would check your uart hardware connections. Make shure that you've got your ground, txd and rxd right connected. I've made once that mistake and got +/- the same result.
Title: Re: Debug Port: Wrong character set?
Post by: flavigny on November 17, 2012, 07:15:00 PM
ooops,
it is typically what you receive when crossing txd and ground.
regards
PO.
Title: Re: Debug Port: Wrong character set?
Post by: StevenBowtie on November 17, 2012, 11:33:03 PM
I tried switching TX and RX, which only succeeded in not receiving any data. After much digging and cursing, I located my backup FTDI cable and now it works fine. Thanks for the help, sorry it was just a bad cable!