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01/11/06 17:34
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#107066 - 8052 Software Design with Interrupts
Hi,

I am new for 8052 software design. In one of my project called RS 485 Communication Master device we are using Atmel 89C52 and MODEM. MODEM connected to uC through 16C550 UART and uC Tx and Rx lines connected to RS 485 driver.

In this project my main aim is collecting ASCII string information from MODEM, String processing and sending to RS 485 nodes with predefined protocol.

For this I am planning to use Serial Interrupt mechanism for sending and receiving data to RS 485 N/W, this task will read and write data from/to predefined buffers. By using T0 timer planning to create one more task for reading and writing data to/from MODEM and storing to one more predefined memory area. By using normal infinite loop planning to do data processing and forming data packet protocols.

Please let me know I am in right track or not..., please suggest....


Thanks in advance...
Siri




List of 15 messages in thread
TopicAuthorDate
8052 Software Design with Interrupts            01/01/70 00:00      
   Serial interrupt            01/01/70 00:00      
      PC thinking            01/01/70 00:00      
      Periodic Update..            01/01/70 00:00      
         you do not need a "task' to do that            01/01/70 00:00      
            OP is right            01/01/70 00:00      
            Data Transmission timings...            01/01/70 00:00      
               Numbers ?            01/01/70 00:00      
               I do not understand how a 100ms tick wil            01/01/70 00:00      
               What to do Where            01/01/70 00:00      
         2ms - Eh???            01/01/70 00:00      
            Are We There Yet ?            01/01/70 00:00      
               Your kids are patient            01/01/70 00:00      
                  kids            01/01/70 00:00      
               Don't be silly            01/01/70 00:00      

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