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Topics - kamcm

1
Bus Pirate Support / Everything returned 0xFF, please advice
I want to Write 0x0F at address 0x0054 on EEPROM, but I don't know why it did not work.

I2C> (1)
Searching I2C address space. Found devices at:


I2C> (2)
Sniffer
Any key to exit
[[][][[0xA0+0x00+0x40+0xA5+][0xA0+0x00+0x41+0x5A+][0xA0+0x00+0x42+0x00+][0xA0+0x
00+0x43+0x01+][0xA0+0x00+0x44+0x01+][0xA0+0x00+0x45+0x00+][0xA0+0x00+0x46+0x00+]
[0xA0+0x00+0x47+0x00+][0xA0+0x00+0x50+0xA5+][0xA0+0x00+0x51+0x5A+][0xA0+0x00+0x5
2+0x01+][0xA0+0x00+0x53+0x11+][0xA0+0x00+0x54+0x07+][0xA0+0x00+0x55+0x00+][0xA0+
0x00+0x56+0x00+][0xA0+0x00+0x57+0x00+][0xA0+0x00+0x58+0x00+][0xA0+0x00+0x59+0x00
+][0xA0+0x00+0x5A+0x00+][0xA0+0x00+0x5B+0x00+][0xA0+0x00+0x5C+0x01+][0xA0+0x00+0
x5D+0x00+][0xA0+0x00+0x5E+0x00+][0xA0+0x00+0x5F+0x00+][0xA0+0x00+0x60+0x00+][0xA
0+0x00+0x61+0x00+][0xA0+0x00+0x62+0x00+][0xA0+0x00+0x63+0x00+]


I2C> =0X54
0x54 = 84 = 0b01010100



I2C> [0b01010100 r:1]
I2C START BIT
WRITE: 0x54 NACK
READ: 0xFF
NACK
I2C STOP BIT
I2C>
I2C>

I2C> [0b10100000 0 84 r]
I2C START BIT
WRITE: 0xA0 NACK
WRITE: 0x00 NACK
WRITE: 0x54 NACK
READ: 0xFF
NACK
I2C STOP BIT
I2C>
0X54 should be 0x07, but it returned 0xFF

I want to Write 0x0F at address 0x0054 on EEPROM.
Before doing that, I want to read the current record at address 0x0054,  I don't know why it did not work.

Please advice,

Thanks

( ! ) Fatal error: Uncaught exception 'Elk_Exception' with message 'Please try again. If you come back to this error screen, report the error to an administrator.' in /var/www/dangerousprototypes/forum/sources/database/Db-mysql.class.php on line 696
( ! ) Elk_Exception: Please try again. If you come back to this error screen, report the error to an administrator. in /var/www/dangerousprototypes/forum/sources/database/Db-mysql.class.php on line 696
Call Stack
#TimeMemoryFunctionLocation
10.01242280912session_write_close ( )...(null):0
20.01272412512ElkArte\sources\subs\SessionHandler\DatabaseHandler->write( )...(null):0
30.01272413288Database_MySQL->query( ).../DatabaseHandler.php:119
40.05572552024Database_MySQL->error( ).../Db-mysql.class.php:273