| Products > Test Equipment |
| Sniffing the Rigol's internal I2C bus |
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| dtran11:
Does anyone know what the unknown option for the DS1000Z is for yet? I just installed it but would like to know what it is for. Also how do I revert back to DS1074Z? Thanks |
| AndersAnd:
--- Quote from: dtran11 on December 28, 2013, 08:34:11 pm ---Also how do I revert back to DS1074Z? --- End quote --- I already mention that in a previous answer to your question: https://www.eevblog.com/forum/testgear/sniffing-the-rigol's-internal-i2c-bus/msg355312/#msg355312 --- Quote from: AndersAnd on December 28, 2013, 07:03:11 pm --- --- Quote from: dtran11 on December 28, 2013, 04:23:30 pm ---Also is there anyway to revert the options if I need to send in for repair? --- End quote --- Use the SCPI command ":SYSTem:OPTion:UNINSTall" to remove installed option keys again. Search this topic for :SYSTem:OPTion:UNINSTall --- End quote --- |
| m-joy:
--- Quote from: alank2 on December 28, 2013, 08:12:23 pm ---neamyalo thank you for your work - would you be willing to upgrade to the latest firmware and repeat the full dump? Your dump says it is 00.02.00.00.04 and the latest fw I know of is 00.02.01.00.03. Thanks! --- End quote --- Does that change anything?where is cybernet btw... |
| Avotronics:
Thanks! [/quote] where is cybernet btw... [/quote] What are we, his nannies? Lol ;-) |
| tirulerbach:
Hello, I remembered I'm owning a JTAG-Dongle... :-/O It is an Olimex ARM-USB-OCD. In the meantime I opened my DS2202A, attached the JTAG, downloaded the bfin-uclinux stuff and started urjtag: --- Code: ---jtag> cable arm-usb-ocd Connected to libftdi driver. jtag> frequency 500000 Setting TCK frequency to 500000 Hz jtag> detect warning: TDO seems to be stuck at 0 jtag> --- End code --- Lower frequencies didn't work either... So after fiddling a little bit I assume that the Utst Voltage (3.3V) on Pin 1 on the JTAG header is to weak. According to the schematic posted above it is connected via a pull-up of 10k to 3.3 Volts. The voltage drops to about 1.8V when I connect the JTAG-dongle. That is about 150uA. So, do you think I just can use an external 3.3V supply for the JTAG-dongle? Maybe this is the same issue which neamyalo very slow jtag speed? What do you think? |
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