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Richard Erlacher
02/20/13 10:52
Read: 999 times
Denver, Co
USA


 
#189421 - That's very true, and it's convenient, too ...
Responding to: Erik Malund's previous message
... but the moment you have to power external hardware in order to perform useful work ... well ... you need power, and the DevBoard won't always be enough.

Suppose he wants to drive a couple of steppers ...

The point of my previous post was that, though one can build a PSU, it's best to have a commercial, benchtop power supply, usually a triple-output with one pair of outputs capable of tracking and the other mainly for logic, hence switchable or adjustable from just below 2 volts up to, say, 5 or 6 volts, with, say, 3 or more amperes of output current, and with current limints, and the selectably tracking or not other two with complementary outputs between 30 and 0 volts, normally at somewhat lower current. I've got one that's 30+ years old, and has served me well. Since I'm into testing, having it GPIB-interfaced as well as front-panel operable is very useful.

RE




List of 70 messages in thread
TopicAuthorDate
Your suggestions on starting things with MCUs (8-bit or 32)      Abhishek R. Kaushik      02/10/13 08:24      
   what experience do you have?      Erik Malund      02/10/13 11:31      
      Starter in electronics, good with programming.      Abhishek R. Kaushik      02/10/13 22:51      
   There's more to consider      Richard Erlacher      02/10/13 11:39      
      helpful.      Abhishek R. Kaushik      02/10/13 22:52      
   You do realise that 8-bit != 8051 and 32-bit != ARM?      Andy Neil      02/11/13 06:17      
      yes I understand.      Abhishek R. Kaushik      02/11/13 21:41      
         I think these are the great starting points      Andy Neil      02/12/13 00:47      
         Technical or semantics      Raghunathan      02/12/13 08:50      
            Thanks for understanding and directions      Abhishek R. Kaushik      02/13/13 05:06      
               All required books havee been mentioned      Raghunathan      02/13/13 08:45      
               Also buy a multimeter and soldering equipment      Kalpak Dabir      02/16/13 01:02      
                  What would be the point of buying a photocopy?!      Andy Neil      02/16/13 04:30      
                  what more should I buy?      Abhishek R. Kaushik      02/16/13 10:17      
                     would be buying a serial2usb converter to work with laptop      Abhishek R. Kaushik      02/16/13 10:21      
                        serial - USB      Erik Malund      02/16/13 20:07      
                     Buy an oscilloscope        Richard Erlacher      02/16/13 14:09      
                     Bench PSU      Oliver Sedlacek      02/18/13 02:37      
                        I've built my own PSU many times       Richard Erlacher      02/20/13 10:15      
                           there is no need for a PSU      Erik Malund      02/20/13 10:26      
                              That's very true, and it's convenient, too ...      Richard Erlacher      02/20/13 10:52      
   not at the same time      Erik Malund      02/11/13 07:40      
      Yep, shall be starting with 8-bit      Abhishek R. Kaushik      02/11/13 21:35      
         you must, to work with the '51 have a copy of 'the bible'      Erik Malund      02/12/13 07:20      
            adding some more        Jim Granville      02/12/13 20:28      
               And more...      Andy Neil      02/12/13 23:45      
            good info      Abhishek R. Kaushik      02/13/13 05:53      
               My reason for recommending a f12x kit      Erik Malund      02/14/13 10:21      
                  Can work for different MCUs too?      Abhishek R. Kaushik      02/16/13 10:06      
                     SILabs only      Erik Malund      02/17/13 06:51      
                        I'm not so sure that $1000US will cover it      Richard Erlacher      02/17/13 10:03      
                        very valuable, how about compatibility with breadboards?      Abhishek R. Kaushik      02/17/13 21:59      
                           [ed] "Breadboards" ?      Andy Neil      02/17/13 23:54      
                              RE: 0.1"-pitch DIL Package (DIP)      Andy Neil      02/18/13 00:52      
                              emphasizing two points      Erik Malund      02/18/13 06:51      
                                 RE: Breadboards       Andy Neil      02/18/13 07:41      
                           SiLabs toolsticks too..      Jim Granville      02/18/13 02:07      
                              RE: SiLabs toolsticks       Andy Neil      02/18/13 02:28      
                           stay away from beadboards      Erik Malund      02/18/13 06:48      
                              Breadboards have their place      Andy Neil      02/18/13 07:40      
                                 breadboards      Mahmood Elnasser      02/18/13 13:39      
                                    I have another RS232 solution ... and it's cheap      Richard Erlacher      02/20/13 10:59      
                                       even better      Mahmood Elnasser      02/21/13 01:37      
                                          I don't think this will help at all ...       Richard Erlacher      02/21/13 10:12      
                                             Modern PCs      Mahmood Elnasser      02/21/13 13:23      
                                                Sad, but true.       Richard Erlacher      02/22/13 06:58      
                                             It does not look like USB      Jim Granville      02/21/13 15:08      
                              Choosing Silabs      Abhishek R. Kaushik      02/19/13 04:06      
                                 what is your budget?      Erik Malund      02/19/13 07:08      
                                    my budget is of $250 including shipping      Abhishek R. Kaushik      02/19/13 09:11      
                                       Would buy from digikey or mouser      Abhishek R. Kaushik      02/19/13 09:14      
                                          at that budget ...      Erik Malund      02/19/13 13:02      
                                             probability of getting blown?      Abhishek R. Kaushik      02/21/13 02:47      
                                                Murphys law        Erik Malund      02/21/13 06:39      
                                                Take a close look at the devboard      Richard Erlacher      02/21/13 10:04      
                                       Mouser/Digikey      Jim Granville      02/19/13 14:37      
                                          if you stick with SILabs      Erik Malund      02/19/13 19:38      
                                             only parttially true      Jim Granville      02/19/13 21:18      
                                                if you use a chip with USB      Erik Malund      02/20/13 06:06      
                                                   But...        Andy Neil      02/20/13 06:46      
                                                      yes, if      Erik Malund      02/20/13 09:42      
                                                         I would recommend that it should be!      Andy Neil      02/20/13 10:23      
                                                            don't know what will I do..But I have a right to do mistakes      Abhishek R. Kaushik      02/20/13 21:45      
                                                               Not having been an ATMEL user ...      Richard Erlacher      02/21/13 00:13      
                                                                  NXP P89V664 based devkit good to start with?      Abhishek R. Kaushik      02/25/13 04:10      
                                                                     P89V664 based devkit       Jim Granville      02/25/13 13:27      
                                 It's good to heed Erik's warning ...       Richard Erlacher      02/20/13 11:05      
                                    just notes      Erik Malund      02/20/13 12:22      
                                       Once again ... Erik's right ... however ...      Richard Erlacher      02/20/13 16:11      
         Skills more important than specific architectures      Andy Neil      02/12/13 07:30      

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