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Sniffing the Rigol's internal I2C bus

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DocSnyder:
Hello,

I own a MSO1074Z-S since a few hours. It has software Version 04.00 but the existing license gen doesn't seem to work. Any suggestions? I don't want to brick it.

Thank you

1.21gigawatts:
OK, So I've read (pretty much) every post in this topic and I'm confused. In recent posts it appears that some people are having problems applying licenses to newer 2000 series scopes. Others say that riglol works straight out of the box to generate licenses while still others are busy doing hex dumps through jtag.

I'm seriously considering (actually more like planning, if I get a good answer to this) to buy (tomorrow) an MSO2072A-S. It's been over 30 years since I bough a new scope for myself, and I figure this one will last until (my) doomsday. But I don't want to make a mistake and be stuck at 70MHz.

I have an Altera USB Blaster Rev C and an assortment of computers running whatever OS one could possibly need, but I don't have a clear path to the upgrade procedure. Don't get me wrong - I have read several procedures and they are pretty clear step-by-step instructions. I'm just concerned about whether they will work on current Rigol production scopes. I know that last time I looked into this (a couple of months ago) there were none of these scopes to be found at US dealers, so I'm assuming that what I buy tomorrow will be from a new production run.

Sooo, is this a purchase I should make, or should I wait a while?

BTW, thanks to all of you who do the work that benefits the rest of us. I just joined eevblog, and I intend to contribute my share of design experience.

Slappy_g:

--- Quote from: 1.21gigawatts on August 24, 2014, 08:54:59 pm ---OK, So I've read (pretty much) every post in this topic and I'm confused. In recent posts it appears that some people are having problems applying licenses to newer 2000 series scopes. Others say that riglol works straight out of the box to generate licenses while still others are busy doing hex dumps through jtag.

I'm seriously considering (actually more like planning, if I get a good answer to this) to buy (tomorrow) an MSO2072A-S. It's been over 30 years since I bough a new scope for myself, and I figure this one will last until (my) doomsday. But I don't want to make a mistake and be stuck at 70MHz.

I have an Altera USB Blaster Rev C and an assortment of computers running whatever OS one could possibly need, but I don't have a clear path to the upgrade procedure. Don't get me wrong - I have read several procedures and they are pretty clear step-by-step instructions. I'm just concerned about whether they will work on current Rigol production scopes. I know that last time I looked into this (a couple of months ago) there were none of these scopes to be found at US dealers, so I'm assuming that what I buy tomorrow will be from a new production run.

Sooo, is this a purchase I should make, or should I wait a while?

BTW, thanks to all of you who do the work that benefits the rest of us. I just joined eevblog, and I intend to contribute my share of design experience.

--- End quote ---
You should be fine, but you'll have to go the JTAG route with the newer devices. ROM downgrade is risky. JTAG is guaranteed.

You may need a new device, though, as that Altera device is locked at 12 MHz. I used the Olimex device from Sparkfun. See my thread about the MSO2000 series for detailed instructions.

Slappy_g:

--- Quote from: 1.21gigawatts on August 24, 2014, 08:54:59 pm ---OK, So I've read (pretty much) every post in this topic and I'm confused. In recent posts it appears that some people are having problems applying licenses to newer 2000 series scopes. Others say that riglol works straight out of the box to generate licenses while still others are busy doing hex dumps through jtag.

I'm seriously considering (actually more like planning, if I get a good answer to this) to buy (tomorrow) an MSO2072A-S. It's been over 30 years since I bough a new scope for myself, and I figure this one will last until (my) doomsday. But I don't want to make a mistake and be stuck at 70MHz.

I have an Altera USB Blaster Rev C and an assortment of computers running whatever OS one could possibly need, but I don't have a clear path to the upgrade procedure. Don't get me wrong - I have read several procedures and they are pretty clear step-by-step instructions. I'm just concerned about whether they will work on current Rigol production scopes. I know that last time I looked into this (a couple of months ago) there were none of these scopes to be found at US dealers, so I'm assuming that what I buy tomorrow will be from a new production run.

Sooo, is this a purchase I should make, or should I wait a while?

BTW, thanks to all of you who do the work that benefits the rest of us. I just joined eevblog, and I intend to contribute my share of design experience.

--- End quote ---
You should be fine, but you'll have to go the JTAG route with the newer devices. ROM downgrade is risky. JTAG is guaranteed.

You may need a new device, though, as that Altera device is locked at 12 MHz. I used the Olimex device from Sparkfun. See my thread about the MSO2000 series for detailed instructions.

DocSnyder:
Will I have to do the same procedure for the MSO1074Z-S? As much as I understood the private key of the Ds1k has been read out of the firmware. Now it seems that the MSO behaves not the the same.  Will the JTAG method work in the same way as it does for the DS2000? or do I simply have to use other option keys? thank you for your support.

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