this is a slide of communication between VB and PIC

1. COMMUNICATION BETWEEN VB AND
MICROCHIP FAMILY THROUGH RS-232C

2. Visual Basic
O VB is a language programming OOP that
allows a simple form programming
through modules and objects.
O The interface with the user is intuitive and
easy to use, however it syntax is a little
more complex.

3. ELEMENTS FOR RS-232C
COMMUNICATION
TOOLBOX VB 2010

4. ELEMENTS FOR RS-232C
COMMUNICATION II
PROPERTIES OF SERIAL PORT
OBJECT

5. ELEMENTS FOR RS-232C
COMMUNICATION III
PROPERTIES SERIAL PORT

6. ELEMENTS FOR RS-232C
COMMUNICATION IV
PROPERTIES TIMER OBJECT

7. ELEMENTS OF MICROCHIP
FAMILY
O LIBRARIES HOW TIMERS.
O MODULES EUSART, USART,
O TABLE 2-13: SINGLE USART PERIPHERAL FUNCTIONS
O Function Description
O BusyUSART Is the USART transmitting?
O CloseUSART Disable the USART.
O DataRdyUSART Is data available in the USART read buffer?
O getcUSART Read a byte from the USART.
O getsUSART Read a string from the USART.
O OpenUSART Configure the USART.
O putcUSART Write a byte to the USART.
O putsUSART Write a string from data memory to the USART.
O putrsUSART Write a string from program memory to the USART.
O ReadUSART Read a byte from the USART.
O WriteUSART Write a byte to the USART.
O baudUSART Set the baud rate configuration bits for enhanced
USART

8. ELEMENTS OF MICROCHIP
FAMILY II
O Baud rate:
O USART_BRGH_HIGH High baud rate
O USART_BRGH_LOW Low baud rate
O USART_ASYNCH_MODE Asynchronous Mode
O USART_SYNCH_MODE Synchronous Mode
O Asynchronous mode, high speed:
O FOSC / (16 * (spbrg + 1))
O Asynchronous mode, low speed:
O FOSC / (64 * (spbrg + 1))
O Synchronous mode:
O FOSC / (4 * (spbrg + 1))
O Where FOSC is the oscillator frequency.

9. INTERFACE BETWEEN PC
AND PIC
O MAX232

10. LINKS
O http://www.youtube.com/watch?v=GxH93l
LV4fQ
O http://www.youtube.com/watch?v=meJtSQ
QaMb4
O Blog:
O http://losilustradosecci.blogspot.com/
O Thanks