nooobboy4321
Junior Member level 1
Hello Everyone, I have questions about Microcontrollers. So lets start with...
1. How to connect a 2 PIC16F877A using UART?
2. Is there a need of MAX232 to execute this? like a bridge for 2 MCU's??
3. I'm not sure if my codes are correct...I'm using MikroC Pro and ISIS for simulations.
I'm building a simple idea about toggling LED. This is my codes:
:::::MCU1:::::
and here's the other one....
:::::MCU2:::::
Heres a simple graphical representation of my idea...
Thanks in advance....
1. How to connect a 2 PIC16F877A using UART?
2. Is there a need of MAX232 to execute this? like a bridge for 2 MCU's??
3. I'm not sure if my codes are correct...I'm using MikroC Pro and ISIS for simulations.
I'm building a simple idea about toggling LED. This is my codes:
:::::MCU1:::::
Code:
void main() {
TRISB = 0xFF; // Set B as Input
PORTB = 0x00; // Set B to FF
UART1_Init(9600); // MCU1 Baudrate
Delay_ms(100);
do {
if (RB0_bit) // If RB0 is Toggled
UART1_Write_Text("A"); // Send Info From MCU1 Toggled RB0 to MCU2
Delay_ms(1000);
PORTB = 0x7E; // Toggle RB1-RB6
if (RB1_bit)
UART1_Write_Text("B"); // Send Info From MCU1 Toggled RB1 to MCU2
Delay_ms(1000);
PORTB = 0xFC; // Toggle RB2-RB7
} while (1);
}and here's the other one....
:::::MCU2:::::
Code:
char dfmcu1; // Variable: Data From MCU1
void main() {
TRISB = 0x00; // Set B as Output
PORTB = 0x00; // Set B to OFF
UART2_Init(9600); // MCU2 Baudrate
Delay_ms(100);
do {
if (UART2_Data_Ready()) // Waiting for the data from MCU1
dfmcu1 = UART2_Read(); // Read
UART2_Write(dfmcu1); // Container dfmcu1
Delay_ms(100);
if (dfmcu1 == 0x41) // if d' data receive is A
PORTB = 0x7F; // RB0-RB6 will Toggle
if (dfmcu1 == 0x42) // if d' data receive is B
PORTB = 0xFE; // RB1-RB7 will Toggle
} while (1);
}Heres a simple graphical representation of my idea...
Thanks in advance....
Last edited by a moderator:
