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???
03/31/06 08:39
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 		 #113461 - Set DMA Mode!
Responding to: ???'s previous message
I have a complete look on D12.asm from intel site
They had used set dma command on setting address routine
I added it to my code but in this case 'ding-dong' didn't hear!
Also any device descriptor request with invalid wlength didn't appear!

SET_DMA_MODE:
MOV ADRES,#0FBH
CALL USB_COMMAND
MOV DYTA,#20H ;Enabling SOF-below description
CALL USB_DATA_WRITE
RET

Interrupt Pin Mode A ‘0’ signifies a normal interrupt pin mode
where interrupt is generated as a logical OR of all the bits in the interrupt registers. A ‘1’ signifies that the interrupt will occur when Start of Frame clock (SOF) is seen on the
upstream USB bus. The other normal interrupts are still active.
I don't know why this strange operation occurs?

Mehdi

List of 88 messages in thread
TopicAuthorDate
USB Enumeration Process!!!            01/01/70 00:00      
   USB Design By Example            01/01/70 00:00      
      USB Design By Example            01/01/70 00:00      
         Hi.            01/01/70 00:00      
            Jan Axelson            01/01/70 00:00      
            Salaam            01/01/70 00:00      
               Salaam, Saalam and Thank you.            01/01/70 00:00      
                  fires            01/01/70 00:00      
                     It's out. All is well.            01/01/70 00:00      
                        weather            01/01/70 00:00      
                           Normal Weather            01/01/70 00:00      
                           good for you            01/01/70 00:00      
            D12!            01/01/70 00:00      
               Firmware Programming Guide for D12!            01/01/70 00:00      
                  I'll get back            01/01/70 00:00      
                     Thanks            01/01/70 00:00      
   I don't think you ever send descriptor .            01/01/70 00:00      
      Thanks            01/01/70 00:00      
         Descriptor IDs            01/01/70 00:00      
      But i think i must do!            01/01/70 00:00      
         Edit!            01/01/70 00:00      
            Main Loop            01/01/70 00:00      
               Try USB.org            01/01/70 00:00      
                  I don't know why d12 don't interrupted            01/01/70 00:00      
               I don't know why d12 don't interrupted            01/01/70 00:00      
                  I don't know why d12 don't interrupted            01/01/70 00:00      
                     I don't know why d12 don't interrupted            01/01/70 00:00      
                  Acknowledge setup?            01/01/70 00:00      
                     Thanks Tsuneo ,            01/01/70 00:00      
                        Sorry, I confused            01/01/70 00:00      
                           Sorry, I confused            01/01/70 00:00      
                              Just A Question!            01/01/70 00:00      
                                 It's OK, just for enumeration            01/01/70 00:00      
                                    Any error code on Control In EP?            01/01/70 00:00      
                                       Zero Length Packet !!!            01/01/70 00:00      
                                          ZLP??            01/01/70 00:00      
                                             ZLP??            01/01/70 00:00      
                                                ZLP itself is not the key            01/01/70 00:00      
                                                   the code to write the descriptor            01/01/70 00:00      
                                                      VALIDATE_BUFFER            01/01/70 00:00      
                                                         VALIDATE_BUFFER            01/01/70 00:00      
                                                            VALIDATE_BUFFER            01/01/70 00:00      
                                                               Not exactly            01/01/70 00:00      
                                                                  'Read buffer' and 'Write buffer'            01/01/70 00:00      
                                                                     'Read buffer' and 'Write buffer'            01/01/70 00:00      
                                                                        VALIDATE_BUFFER ?            01/01/70 00:00      
                                                                           VALIDATE_BUFFER ?            01/01/70 00:00      
                                                                              Your code            01/01/70 00:00      
                                                                                 Bulk Mail            01/01/70 00:00      
                                                                                    SEND_REQUESTED_DESCRIPTOR            01/01/70 00:00      
                                                                                       Incredible Progress            01/01/70 00:00      
                                                                                          ZLP on Control-IN            01/01/70 00:00      
                                                                                             Control IN and Control OUT transfer            01/01/70 00:00      
                                                                                                Thanks for your responses,            01/01/70 00:00      
                                                                                                   SET_ADDRESS            01/01/70 00:00      
                                                                                                      Some Questions...            01/01/70 00:00      
                                                                                                         SET_DESCRIPTOR            01/01/70 00:00      
                                                                                                            Control transfer            01/01/70 00:00      
                                                                                                               Control transfer            01/01/70 00:00      
                                                                                                                  the whole picture            01/01/70 00:00      
                                                                                                                     The Whole Picture,Thanks            01/01/70 00:00      
                                                                                                                        IN EP interrupt after sending packet            01/01/70 00:00      
                                                                                                                           Two USB communication procedure            01/01/70 00:00      
                                                                                                            comment...            01/01/70 00:00      
                                                                                             zlp!            01/01/70 00:00      
                                                                                             zlp!            01/01/70 00:00      
                                                         misunderstanding!            01/01/70 00:00      
   send an e-mail to your friendly local Ph            01/01/70 00:00      
   waiting for a techie, so I rummaged a bi            01/01/70 00:00      
   A Question?            01/01/70 00:00      
      declared in bMaxPacketSize            01/01/70 00:00      
   Source Code!            01/01/70 00:00      
      Source is Edited now!            01/01/70 00:00      
      Source is Edited!            01/01/70 00:00      
   D12 Example in "USB Design By Example"            01/01/70 00:00      
   Configuration Descriptor!            01/01/70 00:00      
      The 2nd Get_Descriptor            01/01/70 00:00      
         Thanks Tsuneo            01/01/70 00:00      
            Isn't it the config. desc. request?            01/01/70 00:00      
               Best For You Tsuneo !            01/01/70 00:00      
               Thanks            01/01/70 00:00      
      Strings            01/01/70 00:00      
         Thanks Thomas            01/01/70 00:00      
            Correction            01/01/70 00:00      
               USBView and UVCView            01/01/70 00:00      
               Thanks Thomas            01/01/70 00:00      
   Set DMA Mode!            01/01/70 00:00      
      It's optional            01/01/70 00:00      

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