Aaaaarrrrggghhhhh :-) Serial woes

[taximania]

Ok, I'm finally pronounced brain dead. Been at this 2 weeks now.
Didn't want to bother you guys, (and gals ?)

I'm trying to send a byte to a Microchip Pic controlling an LCD display.
eg: 1 byte valued between 1 - 255

serial.Output(? :sign0148: ?) WHAT !!

I've tried
serial.Output(textbox1.text)
serial.Output(chr(textbox1.text))
serial.Output(int(textbox1.text))

I've tried serial.Output2(various variations)

I can't get the display to reproduce a number over 127.
128 shows 63 !
Or the ascii symbol for the byte sent.

Ascii is 0-127 ?????

:sign0082:

 

[Cableguy]

I remember Agraham posting some answers to very similar questions but I cannot find them now...
If I recal correctly it has to do either with ascii or with utf-16, (not utf-8)....
But defenetly this has been adressesd....
Sorry I can't help more...

PS_: This is not what I was looking for but may shed some more light on your Brain!!!

 

[agraham]

I can't get the display to reproduce a number over 127.

Yup, that's the problem with the default ASCII encoding when sending text through the Serial2 library. Serial.Output sends a String and as the standard Encoding is ASCII it won't send any character over 127. You should use Serial.Output2 which sends bytes that can have any value between 0 and 255. If you need to receive binary data then read the help for (and use) my SerialEx library.

 

[taximania]

Cheers for the nudge you two :sign0188:

In all my years of programming and using the Serial port,
who'd believe only now am I trying to send a value larger than 127.

I bet my other 2 graphic LCD projects might work now :sign0087:

 

[taximania]

For those that might read this thread.
Yup. How do you send a byte via Serial.

Declare a Global variable, eg:

Byt(1) as byte 'Single Array with one element.

then use:

Byt(0)=129 '0= first elemenet of array, 129 is the value to send
Serial.Output2(Byt()) 'Send the single Byte Array

It's in the desktop helpfile :sign0148:
Well, a similiar example is

 

[taximania]

Got them both working now.

Saving a 128 x 64 BMP drawn on a PPC, to a microchip 24LCxxx EEPROM has been sorted :sign0060:
Reading a 24LCxxx image back to a 128 x 64 Graphic LCD is sorted.
Not tried reading back to a PPC Image yet. One to try

All this is done between a PIC microcontroler with a Bluetooth module connected, and my PPC via a Bluetooth serial connection.


Yawn . . . . :sign0013:



:sign0087:

 

[agraham]

:sign0098: There's nothing like a bit of successful low level bit-twiddling with a bit of hardware to provide that warm inner glow of satisfaction and achievement (and provoke utter bewilderment on the part of the other half!).

 

[Cableguy]

:sign0098: There's nothing like a bit of successful low level bit-twiddling with a bit of hardware to provide that warm inner glow of satisfaction and achievement (and provoke utter bewilderment on the part of the other half!).

Yeah, what he said....

 

[seeyee520]

dose it work?

For those that might read this thread.
Yup. How do you send a byte via Serial.

Declare a Global variable, eg:

Byt(1) as byte 'Single Array with one element.

then use:

Byt(0)=129 '0= first elemenet of array, 129 is the value to send
Serial.Output2(Byt()) 'Send the single Byte Array

It's in the desktop helpfile :sign0148:
Well, a similiar example is

i had do the same work as you did .
i plan to use the PPC to control a microcontroller based of 51.
the question is all data sent by the serial is 0xF8 and 0x80，not anyting else 。
so how can i use the serial to transmit a hex data like 0x0c。？？？

 

[Erel]

For some reason you appear as an unlicensed user in the forum. Please contact [email protected] in order to fix it.

 

[seeyee520]

For some reason you appear as an unlicensed user in the forum. Please contact [email protected] in order to fix it.

OMG.:sign0013:
i am a student and the software was brought by school.
So those limit could help to popularize your product ?
TOO closed .it is hard to understand

 

[Erel]

Please contact [email protected]