Keywarrior chip on starter-kit
Moderator: Guido Körber
Keywarrior chip on starter-kit
Hello people,
Is there any problem if i put a Keywarrior 16 chip (40 pin PDIP) on the socket of a IOwarrior 40 starter kit?
Can i use Keywarrior on these way, or there are any problems?
Thanks in advance,
Marco Serrano
Is there any problem if i put a Keywarrior 16 chip (40 pin PDIP) on the socket of a IOwarrior 40 starter kit?
Can i use Keywarrior on these way, or there are any problems?
Thanks in advance,
Marco Serrano
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Re: Keywarrior chip on starter-kit
If you only want to use USB there is no problem.
Re: Keywarrior chip on starter-kit
Yes, i just want to use USB.
Another question Guido: If i want to use the external EEPROM to program Master Translation Tables to KW16-Flex, i will be able to make this on the PCB of the starter-kit modified?
If i use just the starter-kit with KW-16 chip inserted i can wire the keyboard matrix (to starter kit pins) and start to "play" the keyboard, or is not so simple?
Thanks in adance,
Marco Serrano
Another question Guido: If i want to use the external EEPROM to program Master Translation Tables to KW16-Flex, i will be able to make this on the PCB of the starter-kit modified?
If i use just the starter-kit with KW-16 chip inserted i can wire the keyboard matrix (to starter kit pins) and start to "play" the keyboard, or is not so simple?
Thanks in adance,
Marco Serrano
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Re: Keywarrior chip on starter-kit
A KeyWarrior Flex needs the EEPROM, otherwise it does not work at all.
Re: Keywarrior chip on starter-kit
Ok, thanks a lot.
There is any chip from KeyWarrior 16 family that don´t need EEPROM?
Regards
There is any chip from KeyWarrior 16 family that don´t need EEPROM?
Regards
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Re: Keywarrior chip on starter-kit
No standard part. Factory programmed key tables are only available for custom chips.
Re: Keywarrior chip on starter-kit
Hello,
I have received my KW16 Flex chip + 24C02 EEpPROM and have inserted the chip on the IOW40 starter kit and fitted well. I have soldered the EEPROM as well, making the circuitry like the plan presented on KW16 datasheet.
But it seems that i ave a problem because i cant download any keyboard table into EEPROM. On the utility program i can select the download option but it gives me the message: "Download Failed!"
It seems to be a EEPROM problem, because KW16 is recognized well by windows xp.
Do you have some troubleshooting that i can make to see what is going wrong with EEPROM?
Thanks,
MS
I have received my KW16 Flex chip + 24C02 EEpPROM and have inserted the chip on the IOW40 starter kit and fitted well. I have soldered the EEPROM as well, making the circuitry like the plan presented on KW16 datasheet.
But it seems that i ave a problem because i cant download any keyboard table into EEPROM. On the utility program i can select the download option but it gives me the message: "Download Failed!"
It seems to be a EEPROM problem, because KW16 is recognized well by windows xp.
Do you have some troubleshooting that i can make to see what is going wrong with EEPROM?
Thanks,
MS
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Re: Keywarrior chip on starter-kit
First check the connections. Make sure the address pins of the 24C02 are pulled down and if there is a Write Enable pin it has to be pulled down too.
Re: Keywarrior chip on starter-kit
Thanks Guido,
Sorry for these newbie question but what i must do to pull down those pins? In fact the instructions for KW16 says that we must pull down pins A0, A1 and A2. What i must do?
Where i can found that write enable pin?
Thanks for your help, i think i´m close to have it work well :)
MS
Sorry for these newbie question but what i must do to pull down those pins? In fact the instructions for KW16 says that we must pull down pins A0, A1 and A2. What i must do?
Where i can found that write enable pin?
Thanks for your help, i think i´m close to have it work well :)
MS
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Re: Keywarrior chip on starter-kit
pulling down = pulling to a logic low level = connect to ground
The only unused pin on the 24C02 is /WE on some variants of the chip.
The only unused pin on the 24C02 is /WE on some variants of the chip.
Re: Keywarrior chip on starter-kit
Ok, it seems i´ve do that alright. Those pins (adress pins are already pulled down).
I´m using a condensator of 100nF between pin number 4 and Vcc. This is correct?
Thanks
MS
I´m using a condensator of 100nF between pin number 4 and Vcc. This is correct?
Thanks
MS
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Re: Keywarrior chip on starter-kit
100nF between pins 4 & 8 is correct. Placed direct at the chip, no wires to the other end of the board.
Other possible problems are reversing the lines or forgetting the pull up resistor on SCL.
Other possible problems are reversing the lines or forgetting the pull up resistor on SCL.
Re: Keywarrior chip on starter-kit
Still dont work!
I´ve added the resistors: 9,8K is what i have in SCL line, between pin 6 from EEPROM and Y15 of KW16.
I checked with a multimeter some tension values on EEPROM pins when the starter kit connected to USB. Pins number 8 and 5 are with 5 volts. All the others 0 volts.
KW windows tool gives the same message: download failed!
Is it possible EEPROM is damaged?
Thanks
I´ve added the resistors: 9,8K is what i have in SCL line, between pin 6 from EEPROM and Y15 of KW16.
I checked with a multimeter some tension values on EEPROM pins when the starter kit connected to USB. Pins number 8 and 5 are with 5 volts. All the others 0 volts.
KW windows tool gives the same message: download failed!
Is it possible EEPROM is damaged?
Thanks
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Re: Keywarrior chip on starter-kit
Not quite what the application circuit is showing...mhserrano wrote:I´ve added the resistors: 9,8K is what i have in SCL line, between pin 6 from EEPROM and Y15 of KW16.
Re: Keywarrior chip on starter-kit
Hello,
But we must put a pull-up resistor of 10K on these line? Or this resistor is installed on the starter-kit already?
Thanks
But we must put a pull-up resistor of 10K on these line? Or this resistor is installed on the starter-kit already?
Thanks