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Dropcheck

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About Dropcheck

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  1. On the normal 34 pin IDE connector for the XF551 Atari jumpered the motor control signal to both pins 10 and 16. That worked for the 5.25" drives which at that time were usually set as DS0. When 3.5" drives came along, they were normally set as DS1 or the second floppy in a two floppy drive PC setup. So that's why we have to change them to DS0 to work with the Atari. In theory you could also cut the trace between 10 and 16 on the IDE connector and then simply jumper pin 12 to pin 16 and achieve the same result. Right? Now on the newer 26pin FFC connector is pin 4 serving as the DS0/DS1 pins(10/12) on the IDE connector? ***Tried jumpering FFC connector pin 4 and 10, drive is NAK on DIR D1: command from SpartaXDOS 4.48 ***Tried pin 4 and 10 FFC connector separated drive, is NAK on DIR D1: command from SpartaXDOS 4.48 I am getting the normal short spin up of a XF551 drive using HyperX B firmware, so the power and gnd signals are good.
  2. The problem seems to be the conversion between a 26 pin FFC connector on the drive and the older IDE 34 pin connector. I know the proper wiring for the older IDE 34 pin connector. There doesn't appear to be any jumper/resistor for DS0/DS1 on the drive. I think on the newer 3.5" SLIM LINE FFC 26pin drives it was assumed the drive was DS0. This is another pinout I found:
  3. It's the led on the drive itself. I'm assuming that all it's circuitry is on the drive itself. Just need to correctly connect the drive select signal to the proper pin on the drive connector. That's why I was asking for the specific pinout of the NEC drive connector. 🙂 I am getting power to the drive. It is momentarily spinning up when a disk is inserted and I power cycle the drive. But no lighting of the led on the drive.
  4. I've been looking for the pinout of the NEC FD3238H/T slim line 3.5" floppy drive FFC for awhile now. I've been unable to locate the specific pinout, but I have a couple of generic conversations between other similar slim line floppy drives. So far I haven't been able to get the drive led to light on the adapter I've developed for my XF551 boards. I've tried two NEC drives so far with the same result. So I suspect my pinout is not correct rather than the drive itself. This is what I have.
  5. I would ask for elevated bbs privilege to access the files area first. Then try to dl from the actual bbs. Try an unmodified version of zimodem with your server as a quality control. If you also have the same issues, then it's not your modifications. It's more likely settings.
  6. So it sounds like you might be using I2C on the NODEMCU. Adafruit indicates that an alternative option for 4 channel Bi-directional level shifter is i2C friendly and that board is FET based. Or maybe the 74LVC245 chip which has supposedly a stronger output drive
  7. Hmmmm...... 🙂 Let me try this. Hey, how about this level shifter? 8 Channel Bi-directional Logic Level Converter
  8. As far as the configuration changes are concerned..... I'm not having an issue with the SSID and Password be saved. Currently using version 3.4. Are you using the menu system or the AT..... commands?
  9. 1088XLD I/O System Mod in Action: 1088XLD I/O System Mod
  10. Just checking to see if you have made any progress on this project. 🙂
  11. Okay, in the first schematic you posted, what handler are you planning to use on the Atari side that will allow control of the interrupt and proceed lines via terminal software? Rverter I presume, but what version of Rverter handler and Atari terminal software have you tested with? If you could get the first schematic working, it would be the cheapest and most useful of the two. 😉 On the second, I don't see any Atari connection at all, just a physical DB9 port connected through a level shifter to the NodeMCU. That's fine if the computer it is connected to already has a full blown serial port, but not really useful as a direct connection to the Atari. I'm not saying it isn't a fine generic Serial2WiFi modem start, but it's not a self contained Atari SIO2Wifi modem. You'd have to have an 850 or P:R box and change the pinout on the DB9 to be compatible or use a custom cable between to use it on an Atari. 🙁 A third option would be to have an onboard middleman mcu generating the control signals, handling the response and buffering for the Atari and doing the converting to wifi. You're almost there with either of the two schematics, but by themselves neither is quite there. Direct connection to the Atari SIO port, full blown flow control/conversion and WIFI transmission to your router. 🙂
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