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BigBen last won the day on May 21 2018

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About BigBen

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    Chopper Commander
  • Birthday 06/27/1959

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    Garbsen, Germany

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  1. Hello Mathy, the 800XL is not from HardwareDoc, it's mine. Here are some pictures of the Atari. The Covox extension with very clear sound output is under development. With the Bios4Config can select 16 different OS, switch between stereo and mono, the memory expansion as follows configure, 0k, 320k Rambo, 320K Compy, 512K Rambo. If a module is active, the size is displayed, 8k left and right, 16k and Basic. See you at the meeting.
  2. Great job 🤩 The website of the Sdrive Max developer. http://www.kbrnet.de/projekte/sdrive-max/index.html
  3. In the original wiring diagram of Robert Petružela (Bob!k) & Radek Štěrba (Raster) a 1N1448 diode is sufficient. Of course, a Schottky diode is the better choice due to the low voltage loss. Problems can be, for example, the cable cross-section or the connection contact on the Atari. For the power supply, I always use 2 wires each for 0 and + 5V, see the pictures. I want to honor an unfortunately deceased man, Raster. Without him and Bob! K we would not have had the basis for the interface. He was a fine guy with a great sense of humor and a big Atari heart. We miss him. Here is a picture of Raster.
  4. I made the setup again and tested. Sorry for my confusion, here is the correct description: Pin (0) RX line goes to the bent Pin2 of the Atmega.
  5. Better with picture. Arduino Uno Atmega put out of the DIL socket and bent out Pin3, put it in the socket and connect with SIO Pin3.
  6. A new software version has been released.
  7. @Farb: Switching over the 1050 button works in the SDrive-Max configuration. There are problems with the two variables I use. #define MS_TRACK_STEP_810 5.55 #define MS_TRACK_STEP_1050 12.41 Changes in small steps do not change the access time anymore. After a high number, there is a time jump in the access. Can you check your time calculation? Attached you will find the measured times when accessing from sector 1 to the first sector of the other tracks. As a floppy I use the ATX file of the 1050 as a reference. My workplace today at the local retro meeting. 850 measurements.pdf Empty_SD_Disk.zip
  8. 1. davidcalgary29 - 1 cart 2. xrbrevin - 1 cart 3. skriegel - 2 carts 4. Marius - 2 carts 5. brenski - 1 cart 6. AtariSociety - 1 cart 7. Mathy - 2 carts 8. Haightc - 1 cart 9. Markk - 1 cart 10. Sleepy - 2 carts 11. Nezgar - 1 cart 12. Gunstar - 1 cart 13. Chaosfaktor - 1 cart 14. Wadeford - 1 cart 15. sanny - 1 cart 16. DNA128k - 1 cart 17. Senor Rossie - 3 carts 18. KlasO - 2 carts 19. NML32 - 1 cart 20. CharlieChaplin - 1 cart. 21. slx - 1 cart 22. David_P - 1 cart 23. Rainier - 1 cart 24. AtariPortal - 2 carts 25. patjomki - 1 cart 26. Allan - 1 cart 27. Toddtmw 1 cart 28. TheNameOfTheGame 1 cart 29. adam242 1 cart 30. Stephen - 1 Cart 31. Jinroh - 1 Cart 32. Philsan - 1 Cart 33. Lastic - 1 Cart 34. invisible kid - 1 cart 35. gozar- 1 Cart 36. pixelmischief - 1 cart 37. BigBen - 1 cart
  9. In the software is a bug. It does not matter whether the 1050 switch is on or off, it is always only 1050 active. I have changed both values, only the 1050 is reacting. #define MS_TRACK_STEP_810 5.5 // 5.3 -> has no impact #define MS_TRACK_STEP_1050 15 // 12.41 -> is everytime activ I use the same floppy disk of the 1050 for the time recording. It also has a direct comparison between the two floppy stations.
  10. Thanks for the great job Mr. Robot.
  11. The Atmega328P - Pin3 TD1-PD1 (TXD) is connected via a 1k resistor to the USB chip Atmega16U2 Pin8 - MATXD. When the voltage is applied, the output of the Atmega16U2 is always + 5V. No participant manages to set the signal to 0V on the SIO bus, see Oszi picture SIO_Error. Only with the circuit supplement, the problem is solved, SIO_OK:
  12. Not stupid! All ports of the Uno are busy, nothing is free. The data transfer runs only via these two ports.
  13. The hardware needs an update, look here
  14. skriegel has written a manual for MAC user, unfortunately in German. What is missing when using the CH340 chipset driver installation. He can also help with problems.
  15. Hi Daniel, all my 810 drives except for the ones with Happy do not work anymore. If one is repaired I also create from the drive a timing list including empty disk. If there are any changes then you can determine them yourself.
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