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LDmicro Forum - Serial LCD |
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Serial LCD (by Boris)
I have problem, when I use 16F877A LCD is working OK.
I need to use ATMEGA128 but LCD is printing some characters but it is not text which I wont. Are there difference in programming or in wiring. Please help.
(no subject) (by MGP)
Can you post an example of the atmega file.
(no subject) (by Boris)
Thanks for reply.
Can You please check are fuses set OK. I am using crystal BootLock12 1 BootLock 1 1 BootLock02 1 BootLock01 1 Lock02 1 Lock01 1 M103C 1 WDTON 1 OCDEN 1 JTAGEN 0 SPIEN 0 CKOPT 1 EESave 1 Boot SZ1 0 Boot SZ0 0 Boot RST 1 BOD Level 1 BODEN 1 SUT1 1 SUT0 1 CKSEL3 1 CKSEL2 1 CKSEL1 1 CKSEL0 1
(no subject) (by David R)
Hi I think you might be calling the serial to fast
try slowing the timers at rung 34 to 250ms and 250ms and see if that helps Regards David
(no subject) (by MGP)
If you have a 4 row display then you should consider the cycle time.
Read this thread, in the last .LD-file you can see what to do. Even though you have a different type of LCD. http://cq.cx/ladder-forum.pl?action=viewthread&parent=3670
(no subject) (by s.meiyazhakan)
HOW TO USE RTC WITH CIRCUITE .HELP ME
(no subject) (by Boris)
This is text which I have on LCD when I load
Lm35toLCD_V2_last text is non stop moving.
(no subject) (by MGP)
Which serial display do you have?
I think you have problems with the cursor movements?
(no subject) (by Boris)
It is SparkFun
I think that my problem is the speed of Atmega. When I program PIC that quartz speed in LDmicro is not the same speed as on the board I have same behavior from LCD. For ATmega I am using 8MHz quartz but I will try to use his internal clock to check will it work. I am new to Atmega and his fuses are very confusing maybe that is the reason why it doesn't operate properly. Thanks!
(no subject) (by MGP)
I don't think that the quartz speed makes the difference because ldmicro uses cycle time.
Can you provide me with a link to the manual of the LCD from Sparkfun, so i can look at it.
(no subject) (by Boris)
(no subject) (by MGP)
I have made a example, but i can't test it because i don't have a Sparkfun LCD.
(no subject) (by Boris)
I fix the problem CKOPT must be 0 even if quartz is 8MHz not 16MHz.
Thanks MGP for Your support. Wish me luck I have to try PWM Thanks again.
(no subject) (by meiyazhakan)
how to copy paste this software
(no subject) (by MGP)
You cannot copy/paste this software, the editor does not allow this.
It's too much work to rewrite the editor. Meiyazhakan and others, if you have a question, please start a new topic. grtz
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