At 24c02

Here we discuss the JTAG on platforms. CPU,CPLD etc.
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Neocristobal
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Posts: 61
Joined: Sun Sep 30, 2007 10:22 pm

24lc02

Post by Neocristobal »

HI:

I wish program with nt this eeprom 24LC02
Datasheet:
Image

USBJTAG EEPROM
Pin 2 ----> pin 4
pin 5 ----> pin 5 (?) not sure
pin 9 ----> pin 6 (?) not sure...

Usbttl 3.3v -----> pin 8 eeprom
But how can connect to NT device eeprom pins X and Y ?

It is assumed that does not support this eeprom because it appears in the program settings, but do not know how the pins are connected ...

thanks
Neocristobal
Junior Member
Posts: 61
Joined: Sun Sep 30, 2007 10:22 pm

Post by Neocristobal »

Ok, this is the diagram that shows nt
Image

But someone can help me understand? what kind of resistance is requered?
usbbdm
Junior Member
Posts: 8842
Joined: Mon Jul 18, 2005 9:33 pm

Post by usbbdm »

Have not played for a while. Try 4.7K first. If it works then it is OK. If not then try 10K or 1K.
Neocristobal
Junior Member
Posts: 61
Joined: Sun Sep 30, 2007 10:22 pm

Post by Neocristobal »

usbbdm wrote:Have not played for a while. Try 4.7K first. If it works then it is OK. If not then try 10K or 1K.
Ok bdm. GND is it???

EEPROM ---------------------> USBJTAGNT
PINS (1,2,3,4,5,7,8) ------> PIN 6



Please confirm...thanks
usbbdm
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Joined: Mon Jul 18, 2005 9:33 pm

Post by usbbdm »

Neocristobal wrote:Ok bdm. GND is it???

EEPROM ---------------------> USBJTAGNT
PINS (1,2,3,4,5,7,8) ------> PIN 6



Please confirm...thanks
USB JTAG NT GND is 2,4,6,8,10.
You can check this pinout in the user manual pdf.
Neocristobal
Junior Member
Posts: 61
Joined: Sun Sep 30, 2007 10:22 pm

Post by Neocristobal »

usbbdm wrote:USB JTAG NT GND is 2,4,6,8,10.
You can check this pinout in the user manual pdf.
I know, but the diagram is not clear...

for example: connection for all usb jtag GND pins (2,4,6,8,10) like this:

EEPROM --------- USBJTAG NT
PINS 1,2,3,4,7 ------> 2,4,6,8,10

or like this:

EEPROM --------- USBJTAG NT
PINS 1,2,3,4,7 ------> 6
????
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