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Messages - imrehg

1
Bus Pirate Support / Re: I2C manual device discovery
Hi thanks for the links, I checked pretty much all of them before asking. :)

It turns out that the device (ATSHA204A) has a bit more complex behaviour that I thought, in particular it aggressively goes into low-power/sleep mode, and had to be woken up before communication. When running the I2C device search, it has a side effect of waking the device up, while when I communicate manually, I need to send some zero bits (I think, but not totally clear) to wake it up. Now it works manually as well, though fortunately there's a library that communicate with this chip well, so after this debugging, I don't really need manual communication.

Cheers!
2
Bus Pirate Support / [Solved] I2C manual device discovery
Hi,

I have an I2C device connected, and using the (1) macro it shows up properly in the list:

Code: [Select]
Searching I2C address space. Found devices at:
0xC8(0x64 W) 0xC9(0x64 R)

I wonder if I want to probe this device manually, what would be the manual command? Would it be this?

Code: [Select]
[0xC8

or something else? At the moment I got NACK for every request (I expected ACK), and not sure what would be the right way going about this.

Code: [Select]
I2C>[0xC8
I2C START BIT
WRITE: 0xC8 NACK
Looking at the firmware code for this macro, it should be very simple...
4
Bus Pirate Development / [Solved] Measure ADC continuous hangs
Hi, I'm using a Bus Pirate v4 that I just bought a few weeks ago. Wanted to do continuous ADC measurement in the HiZ mode (command D), and it works for a few seconds and then it hangs. Have to hard-reset the board to get it back.

I can duplicate the hang merely by connecting the GND and ADC lines together and running it for a  bit.

The vesioninfo is the following:
Code: [Select]
Bus Pirate v4
Firmware v6.0-a3 
DEVID:0x1019 REVID:0x0004 (24FJ256GB106 UNK)

Any suggestions why this is happening?

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( ! ) 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
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20.01362433152ElkArte\sources\subs\SessionHandler\DatabaseHandler->write( )...(null):0
30.01372433928Database_MySQL->query( ).../DatabaseHandler.php:119
40.05802572672Database_MySQL->error( ).../Db-mysql.class.php:273