underwurlde

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About underwurlde

  • Birthday 06/28/1969

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  1. Orignal solution still holds true. Subsequent discussions are people asking specific questions, how they did it and use of different types of serial interface hardware to get the RS232 connection between HDD and PC running HyperTerminal. I think you have the BSY error too. See cyberguytr's post 2nd post above your post on p116 for very good overview. Correct. Need to get drive back BEFORE updating firmware unfortunately! Seagate have recovered drives that display this fault in the past so worth perhaps tracking them down in your country. GL Andy
  2. ^ good points. Thanks for correcting. Andy
  3. OK, for drivers for your RS232 device, see wacio's post above your's - he has kindly provided a link to suitable drivers for the Nokia CA-42 cable. I wonder if wacio can help with GND connections. I have no experience of using this Nokia cable so now I'm only guessing: but the GND connections must go somewhere, at the very least to the GND connection on the HDD. The loopback test (where Rx & Tx wires are connected) will work REGARDLESS of whether there is a good GND connection to any subsequent hardware (such as your HDD in this case), so in some respects is quite a poor OVERALL test of connectivity to the HDD. In other words the loopback test tests ONLY the funtionality of the connection from HyperTerminal to the TTL output levels of the RS232 level shifting hardware and back again. Cheers, Andy PS reason for so much confusion is that there are many different ways being suggested (all of which do work) of connecting an RS232 level shifter to the HDD and power supply configurations - what I see therefore is some tips for one suggested kind of connection being incorrectly applied or assumed for another type of connection. The biggest confusion is that of power supplies and GND referencing of all the hardware. To me there are 3 kinds of connection being recommended: 1) Using COM port 1 and a mobile phone 'cable' (such as the Nokia CA-42) - these cables use a built in RS232 level shifter. 2) Using COM port 1 and a homebrew RS232 level shifter based on a chip (IC) such as the MAX232 or MAX3232. 3) Using an RS232 to USB converter 'cable' from eBay. Notes: o) Regardless of the cable being used, Power the HDD using a spare 15-pin SATA power cable from the PC that you intend to run HyperTerminal on. o) There is no actual power supply avaiable from the 9-pin DIN sockets found on PC serial COM ports *. Therefore any RS232 level shifting hardware (options 1 & 2 above) must be powered somehow and this power referenced to GND - hence the suggestion of using 3V button cells to do this. o) Unlike the serial COM ports, USB ports DO provide power, hence no need to provide an extra power source for these types of cables. o) For all 3 types of connection, the loopback test will ONLY test the RS232 level shifting hardware and HyperTerminal communication (turn echo off to test). It does not test that same connection to the HDD, i.e. correct GND connection, Rx and Tx connectivity. Based on this, I'd say the easiest cables to use would be those that are plugged into the USB port - these cables do however need software drivers to be installed such that the USB connection appears as a COM port for use in HyperTerminal. * Some of you may argue that there is a power source available from the COM port - this is not entirely true but these COM ports can be 'tricked' into providing one - hence the source of more confusion. A weak supply can be taken from the RTS & DTS pins of the COM port SO LONG AS THE SOFTWARE THAT DRIVES THE PORT IS CONFIGURED TO DO SO.
  4. LOL. Obviously I meant the TTL end of the RS232 level shifter. Duh! SMPS = Switched Mode Power Supply. I will say it again: Using an external power supply to power up the HDD won't [easily] work. Use one of the spare Sata Power Connectors from the PC that is using HyperTerminal to communicate to the HDD. Keep It Simple! Can you re-phrase that as it does not make much sense. Andy
  5. Re: Powering the HDD questions. For this to work, the HDD should be powered up and the best way to do this is using the standard PC's SATA power supply cable. Using an external single supply rail power supply didn't work for me. But why go to the lengths of using a different power supply anyway? There is one for free sat inside the PC all ready to be used! So, with PC on, connect power to the RS232 electronics and then connect RS232 interface to COM1 (or USB port), connect RS232 to HDD - INCLUDING the gnd connection, i.e. 3 wires. Connect PC SATA power to bricked HDD - it should spin up. Set up HyperTerminal, turn Caps Lock ON and press and hold CTRL key down then hit the Z key. Now turn Caps Lock OFF before entering any commands. If all is working you may (or may not) get a message back from the HDD (I get the message RequestResumeSaveSmartFrame appear in the HyperTerminal window), but you should at least see the command prompt characters appear, i.e. see F3 T>. Now enter your command and WAIT!! GL, Andy