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???
06/21/07 06:55
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 		 #141119 - Requirement?
Responding to: ???'s previous message
Pradeep Arjun Kumbharkar said:
Actual requirement:

access the database file from external flash memory to microcontroller without PC & this data display on LCD display.

I think you may be a couple of steps away from the actual requirement here.

What is the purpose of this unit?
Why does the data need to be displayed away from a PC?

What sort of data is it?
How is it to be displayed - simple text? formatted text? graphics? animation? video...?

file type = .dbf or excel

Now you're adding a whole load of complexity!

Not only would this require a USB Host and a PC-compatible filesystem (as already explained), but now you are also going to have to work-out how to process and interpret the content of these large PC application files!

I think you will find it much easier to have the PC pre-process the data into a form that is easy for the 8051 to access & display...

List of 36 messages in thread
TopicAuthorDate
pen drive with uC            01/01/70 00:00      
   For File System Compatibility....NOT            01/01/70 00:00      
      File system...            01/01/70 00:00      
         Correct.            01/01/70 00:00      
            as i understand previous post            01/01/70 00:00      
               Buying Vinculum            01/01/70 00:00      
               You understood correctly.            01/01/70 00:00      
               pen drive            01/01/70 00:00      
                  This we understand!            01/01/70 00:00      
                     ARM            01/01/70 00:00      
                        Not necessarily            01/01/70 00:00      
                        Architecture choice            01/01/70 00:00      
                        Best IDE for ARM            01/01/70 00:00      
                           why            01/01/70 00:00      
                     a possible confusion            01/01/70 00:00      
                        Host = Master?            01/01/70 00:00      
                           USB terminology.            01/01/70 00:00      
                           USB Terminology            01/01/70 00:00      
   Microcontroller            01/01/70 00:00      
      And, of course, ...            01/01/70 00:00      
         Any 8051s?            01/01/70 00:00      
            Pen drive and 8051            01/01/70 00:00      
               But is it USB Host??            01/01/70 00:00      
                  8051 w/OTG            01/01/70 00:00      
                     flash memory card to microcontroller via USB.            01/01/70 00:00      
                        Thats up to you to decide            01/01/70 00:00      
                        Requirement?            01/01/70 00:00      
                        File formats            01/01/70 00:00      
                        silabs Mass Storage Ref Design            01/01/70 00:00      
                           not necessarily            01/01/70 00:00      
                              not for any reasonable display...            01/01/70 00:00      
                                 I totally disagree            01/01/70 00:00      
                                    what about the memory controller??            01/01/70 00:00      
                                 Video?            01/01/70 00:00      
                                    true to both points            01/01/70 00:00      
                                       OP            01/01/70 00:00      

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