Visual Basic and PIC 16F628

[MathGeek]

pic16f628 + visual basic

I would like to interconnect my computer and 16F628 through RS232. I would like to turn output pins "high" and "low" using the computer. Eventually, I will move onto PWM, etc.

I will be using Visual Basic to program the PC interface.

I think I need max233.

How can I get started on this project? I have been searching for a week now, but I got no clear answer. My biggest problem is programming with assembly 16f628 to use USART.

Please help. Thanks.

 

[polymath]

usart pic 16f628a basic

Hi MathGeek

Read Microchip Data:

Midrange USART description:
https://ww1.microchip.com/downloads/en/DeviceDoc/31018a.pdf

App. Note AN774 shows the use of USART for RS232 with source code example.
**broken link removed**

The PIC16F628 has been superceded by PIC16F628A - µC data sheet:
https://ww1.microchip.com/downloads/en/DeviceDoc/40044D.pdf

hope this helps you start Polymath

 

[hugo]

pic aan computer 16f628

I would like to interconnect my computer and 16F628 through RS232. I would like to turn output pins "high" and "low" using the computer. Eventually, I will move onto PWM, etc.

I will be using Visual Basic to program the PC interface.

I think I need max233.

How can I get started on this project? I have been searching for a week now, but I got no clear answer. My biggest problem is programming with assembly 16f628 to use USART.

Please help. Thanks.

Check this:

http://www.rentron.com/VisualBasic.htm

 

[MathGeek]

16f628 example basic pwm

Thanks guys.

I am very close to figuring all this out.

I have few things obscure about Visual Basic.

if I write (for 2400 8N1)

MsComm.output = chr$(30)

what would be the actual physical out put out of RS232?