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| Hantek HDG2002B AWG: 5Mhz or 100MHz? Let's see! |
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| flatlander:
--- Quote from: alex.forencich on October 26, 2014, 09:54:44 am --- Quote from: flatlander on Today at 05:42:24 PM Did some testing on my 'upgraded' Hantek HDG2002B and found that the amplitude of the generated signal (sine) quickly drops off past 5MHz. It seems that my unit's firmware is still limiting the bandwidth to 5Mhz even though it lets me increase the frequency to 100Mhz. I tried loading older FPGA firmware but that doesn't work at all (no output and all output related self tests fail). Possibly have to flash a 'matching' set of software and FPGA versions. I'd be interested to know if the amplitude issue also exists on earlier software/hardware versions. Versions: Software: 1.00.2 (140926.0) Kernel: Linux 3.2.35 FPGA: 20 Keyboard: 3 PCB: 1004 --- End quote --- I think there is a filter in the output stage that you need to bypass in order to get full bandwidth. There are details here somewhere... --- End quote --- --- End quote --- I thought that fix was for reducing ringing on output signals > 4Vpp. I should have mentioned this in my post, but I was using 1Vpp. |
| fremen67:
--- Quote from: Cyber7 on October 22, 2014, 07:39:17 am --- I am keeping a blog at http://hdg2002b.simplesite.com . So far I have consolidated all documentation I have: datasheets, hi-res scans & pics, scripts and upgrade procedures sourced and credited to the fine folks that have contributed to this forum. :clap: --- End quote --- Seems I have been away for a long time, very nice blog ! :-+ --- Quote from: Cyber7 on October 22, 2014, 07:39:17 am ---The firmware partitions for 1.00.2 are not the same as 1.00.1. They added a recovery partition. I updated the nanddump script for the new geometry, and succeeded with dum pin mtd0 to mtd8. --- End quote --- Good job. Could you send me a link to your dump? I am still running firmware 1.00.1 ... --- Quote from: Cyber7 on October 22, 2014, 07:39:17 am ---I have successfully JTAGed the s3c2416 and NAND with a cheapo 100ask.net USB adapter via openocd. The scripts for USB nandbackup and the openocd config for the AWG target is attached below, and posted on the above site. Rename the .txt file as .cfg. --- End quote --- I have the same adapter but could not manage to go faster with OpenOCD than H-Jtag with the parallel port. I also tried OpenOCD with a J-Link adapter but it was not faster. I know that Tinhead has the H-JTAG USB adapter and he can burn a K9F1G08 in less than 8 minutes... The only device I use with OpenOCD which is faster than H-JTAG // is a Raspberry PI used as a Jtag adapter (see https://github.com/synthetos/PiOCD/wiki/Using-a-Raspberry-Pi-as-a-JTAG-Dongle ) but only from 20%. |
| fremen67:
--- Quote from: flatlander on October 20, 2014, 09:48:12 am ---Got my HDG2002B today. System info below, FPGA version seems to have jumped a few versions. Software: 1.00.2 (140926.0) Kernel: Linux 3.2.35 FPGA: 20 Keyboard: 3 PCB: 1004 --- End quote --- Did you dump your nand? It seems you have the latest here. There are several 1.00.2 versions with different release dates. I am wondering wether Hantek is correctly following revisions or not ... |
| fremen67:
--- Quote from: Cyber7 on October 24, 2014, 07:16:06 pm ---TTSOURCE reads the unit and controls the AWG, BUT the LCD & button LEDs no longer update when I make a change in TTSOURCE! |O Anyone with the DM9000 mod have a similar issue? :-// Can anyone confirm this behavior with a unit running FW v1.00.2 ? Thx. --- End quote --- I have the same issue but I have FW 1.00.1 and I tried TTsource after adding the DM9000 mod ... |
| fremen67:
--- Quote from: flatlander on October 26, 2014, 09:42:24 am ---Did some testing on my 'upgraded' Hantek HDG2002B and found that the amplitude of the generated signal (sine) quickly drops off past 5MHz. It seems that my unit's firmware is still limiting the bandwidth to 5Mhz even though it lets me increase the frequency to 100Mhz. I tried loading older FPGA firmware but that doesn't work at all (no output and all output related self tests fail). Possibly have to flash a 'matching' set of software and FPGA versions. I'd be interested to know if the amplitude issue also exists on earlier software/hardware versions. Versions: Software: 1.00.2 (140926.0) Kernel: Linux 3.2.35 FPGA: 20 Keyboard: 3 PCB: 1004 --- End quote --- I have a similar problem but it starts right after 30 Mhz: https://www.eevblog.com/forum/testgear/hantek-hdg2002b-awg-5mhz-or-100mhz-let's-see!/msg475956/#msg475956. It seems that only a few of us have this problem... Software 1.00.1 (140402.0) FPGA 11 PCB 1002 |
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