| Products > Test Equipment |
| FNIRSI-1013D AS MUCH USE AS A CHOCOLATE FIREGUARD. |
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| MrAl:
Hi, One of the things i think is strange about some of the new low cost scopes (like this "one", and i have to put the word "one" in quotes ha ha) is the wave generator options. Who would design a wave generator where you can not vary the output amplitude? Not me. If you are going to go though the trouble of putting a wave gen inside another instrument that has lots of buttons and knobs already why not build in an amplitude level adjustment? How much more design work would that require, about an hour or two? |
| pcprogrammer:
--- Quote from: Chris02 on January 25, 2023, 03:06:32 pm ---If you want post or send me some high resolution pics and I can try to check the soldering. And did you check the current consumpting after changing the cpu? It maybe should give you some hints, e.g. if there is any short shircuit from soldering. --- End quote --- I have checked the soldering under my camera microscope and for as far as I can see the connections are there, but it might well be that underneath the chip there are some shorts. Hard to tell. The current drawn is lower then normal, but higher then without the MCU. I suspect the MCU is fried due to the multiple tries to get it right. --- Quote from: Chris02 on January 25, 2023, 03:06:32 pm ---I also has got one question. Supports you firmware (I guess original one doesn't do) simple "+" operation? I have to check some RS485 signals and need to add CH1 and CH2. --- End quote --- No, the new firmware even lacks the FFT and has no new features except the selection of the sample rate. |
| pcprogrammer:
--- Quote from: MrAl on January 26, 2023, 03:03:17 am ---Hi, One of the things i think is strange about some of the new low cost scopes (like this "one", and i have to put the word "one" in quotes ha ha) is the wave generator options. Who would design a wave generator where you can not vary the output amplitude? Not me. If you are going to go though the trouble of putting a wave gen inside another instrument that has lots of buttons and knobs already why not build in an amplitude level adjustment? How much more design work would that require, about an hour or two? --- End quote --- You are hinting about the 1014D, because the 1013D does not have a wave generator. But implementing proper amplitude variation requires additional hardware with a second DAC. With only 8 bits there is not much room to keep a proper signal at lower amplitude. It is how the Hantek DSO2D1x does it though. They could have done it in the 1014D, and maybe donwulff can implement it when he converts the new 1013D firmware to the 1014D :) |
| daemon17:
Hi pcprogrammer! ;) I bought this device on 01.03.2023 I want to reflash it and I have a few questions. How can I make a FLASH backup without breaking the scope? Do I need to use sunxi-tools for this? Explain what is the order of loading the scope? It first refers to the SD-card or FLASH Chip. I work with Linux, so there are no problems with it. You've done a great job. I admire you! |
| pcprogrammer:
Hi daemon17, welcome to the forum. First of all to use the new firmware I wrote you don't have to write to the FLASH. It works from the SD card. But making a backup of the FLASH never hurts, and can be done with the backup tool I wrote for it. The procedure for making use of both these is the same. The binary for the backup is here: https://github.com/pecostm32/FNIRSI-1013D-1014D-Hack/blob/main/Test%20code/fnirsi_1013d_firmware_backup/Binaries/fnirsi_1013d_fwb.bin The binary for the new firmware is here: https://github.com/pecostm32/FNIRSI_1013D_Firmware/blob/main/fnirsi_1013d_scope/dist/Debug/GNU_ARM-Linux/fnirsi_1013d.bin Information on how to load the binaries to the SD card are given in the readme here: https://github.com/pecostm32/FNIRSI_1013D_Firmware I also would suggest to check the thread about the hacking and development of the firmware here: https://www.eevblog.com/forum/testgear/fnirsi-1013d-100mhz-tablet-oscilloscope/msg3807689/#msg3807689 Success and have fun with it. Cheers, Peter |
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