I tried to use the SDHxCFESlim to remove the old floppy drive of my DL750 but it doesn't work. The original floppy drive is a MITSUMI D353F3. I tried with the configuration of IBM HD but doesn't works... The oscilloscope doesn't recognize the device. Maybe I need to solder the pullup resistors in R4, R8 and R9?
migui88 wrote: ↑Tue Aug 13, 2019 1:24 pm
I also tested the prebuilt images from the web "SDHxCFE_PC_1.44MB" both indexed and normal and it doesn't work...
I will test more things
Try to change the interface mode in the cfg file to IBM PC 720KB.
I has been in Holidays. The problem is that it is not detected by the oscilloscope. When I connect the original floppy drive i can read/write but when I change it for the SD adapter it is not recognized.
I has been in Holidays. The problem is that it is not detected by the oscilloscope. When I connect the original floppy drive i can read/write but when I change it for the SD adapter it is not recognized.
"Not recognized" = "The oscilloscope don't see the drive" OR "The oscilloscope can't access to the virtual floppy disk." ?
Happy new year, first post here, I am having same struggle and I would like to know if it is neccessary to supply 5V to the PCB board in its connector or can I supply it by 26 pins FPC floppy connector?. Besides that, could I provide 5V from another connector which is near of CN221 flat connector?. Thank you in advance.
Hi again, I supplied my Slim SD HxC with 5V by its connector and it worked but when I plugged it just by pin FPC floppy it didn't work despite the old floppy reader still working just by its 26 pins connector. So, I think it needs more current because there is not any reason for not working. Do you know if I can supply the Slim SD HxC with an external source?. Also pin 1 from floppy connector is linked by 5V pin principal connector from Slim SD HxC, is there any risk of plugging the attached connector source to supply the PCB board??
CarlG wrote: ↑Mon Jan 18, 2021 5:20 pm
Hi again, I supplied my Slim SD HxC with 5V by its connector and it worked but when I plugged it just by pin FPC floppy it didn't work despite the old floppy reader still working just by its 26 pins connector. So, I think it needs more current because there is not any reason for not working. Do you know if I can supply the Slim SD HxC with an external source?. Also pin 1 from floppy connector is linked by 5V pin principal connector from Slim SD HxC, is there any risk of plugging the attached connector source to supply the PCB board??
Thank you again!
The Slim HxC should definitely work with the FPC alone, It uses less current than a floppy drive.
Are you sure that the 5V FPC power supply is always there ?
Thank you Jeff, you are right I was mistaken about supply connection and the SDHxCFESlim works but the oscilloscope still not recognizing. I checked the pinout from the original floppy drive disk and it's almost the same as the FPC floppy pinout, but there is a huge different. What is Vss exactly? The original floppy drive pinout needs ground in those pins to work. Besides that, If I have just one floppy disk, I just have to set 1 the switch 0 and others set 0, right?
By the other hand, I just have one floppy disk and I have checked maybe one of the reasons that is not working is because the connection is Shugart instead of IBM-PC. But, I don't really know if it's just a connection between drives or between SDHxCCFESlim and oscilloscope. Thank you in advance.
