Products > Test Equipment
Sniffing the Rigol's internal I2C bus
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Bicurico:
 :-+
joezilla86:
Thanks tv84 for your help! My XXTEA_KEY did have an occurrence of a 00 and was generating invalid keys until tv84 took a look and was able to get me a valid unlock key.
KK1L:

--- Quote from: Dolence on September 11, 2020, 05:57:21 pm ---Just got a DS1074Z PLUS (not S version) for myself. After much reading I have some questions.

1) The modified fw method described by the user Daruosha would apply to this unit? Reading some more I understood it's for DS and Plus is actually an MSO. I gues DS1074Z PPLUS is actually an MSO1074Z, is it right?

--- End quote ---

Yes. The MSO1074Z comes with the logic probes included. The DS1074Z Plus does not. Only difference is the branding.


KK1L:
I have been trying to get a memory dump of my DS1074Z-S Plus through the JTAG port having given up getting a back level firmware loaded to access via SCPI on the LAN. I hesitate to ask here, but I am at my wits end. I have learned a great deal about OCD, JTAG access, etc in the many days I have dedicated to this endeavor. And am grateful for the all the great information especially on EEVBLOG which has allowed me to make the progress I have.

Using SiSpeed dongle with FT2232 with TMS/TCK/TDI/TDO and RST. RST is connected to SRST on the 1074Z. There is only the one reset signal, so I have to soft reset the TAP.
I seem have the interface signals defined correctly (finally!) as I can reset the scope with a reset command, and jtag arp_init comes back clean.
My problem is that I eventually get a timeout error "waiting for SYSCOMP & DBGACK". I have gotten as large as a 2MB file or so, and as small as 8k. Driving me nuts.

> jtag init
> halt
target halted in ARM state due to debug-request, current mode: Supervisor
cpsr: 0x20000013 pc: 0x4003957c
MMU: enabled, D-Cache: enabled, I-Cache: enabled
> dump_image mso1074z.bin 0x40000000 0x3FFFFFF
timeout waiting for SYSCOMP & DBGACK, last DBG_STATUS: 4


I have been trying a variety of adapter speeds, delay and timing configurations, TDO clocking edge rise/fall, etc. I do not rely on a reset command between tries. I will power cycle both the dongle and the 1074Z.

Is there a clue someone might have for me? Happy to share more detail about what I have tried.

Thanks!

73 es God Bless, KK1L Ron <><
 
up8051:
What is the latest firmware version for DS2072 (non-A).

At Rigol page there are only for DS2000A, is the same for non-A version?
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