i2c macro

[saschech@gmx.de]

Hello

I want work with a i2c eeprom 24FC1025

If i take as device id = 0xa0 > write i show 64 instead (160) in all v4.

regards wolfgang

[Dan81]

Hello Wolfgang

With "Transaction" macros , Device_ID is the "real" I2C address (7 bits) : 0x50 not the control byte 0xA0 (Write) or 0xA1(Read).

(in the code there is a "left shift" and 0xA0 becomes 0x20=64)

Daniel

[saschech@gmx.de]

Hello Daniel

ok,but what is the right input for wr or rd the 24FC1025_eeprom??

Regards wolfgang

[Dan81]

Hello Wolfgang

If you want to write from 0x 0 0000 to 0x 0 FFFF
try : Send Byte Transaction ( 0x50, hh, ll ,data)

If you want to write from 0x 1 0000 to 0x 1 FFFF
try : Send Byte Transaction ( 0x54, hh, ll ,data)

I suppose that A1 and A0 are connected to GND

I can't test it on hardware.

With "transaction" macros , you'll be able to write (or read) only 1 data at a time.
Sequential read or write could be interesting.

Daniel

[saschech@gmx.de]

Hello Daniel

I understand,but ........

Regards wolfgang

[Harry Tuttle]

Hi,
Is this what you should be seeing s,64,0,0,8,P?
This is version V4 of flow code.
Not sure what is wrong with yours!!!

flowcodeI2C.jpg

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[saschech@gmx.de]

Hello Harry
I look for adresse :
a7 > 8 0
a6 > 0 0
a5 > 2 0
a4 > 0 0
___10 0 > hex 0xa0

The macro work:
a7 > 0 0
a6 > 4 0
a5 > 0 0
a4 > 1 0
____5 0 >hex 0x50 << 1 = 0xa0 = 160
You understand?

Regards Wolfgang