pic16f877a interfacing with pc – electroSome https://electrosome.com/topic/pic16f877a-interfacing-with-pc/feed/ Sat, 18 Mar 2023 04:57:25 +0000 https://bbpress.org/?v=2.6.9 en-US https://electrosome.com/topic/pic16f877a-interfacing-with-pc/#post-7540 <![CDATA[pic16f877a interfacing with pc]]> https://electrosome.com/topic/pic16f877a-interfacing-with-pc/#post-7540 Fri, 25 Oct 2013 06:29:59 +0000 rahulo0 Hello There,

I am trying to send a message from pc to pic16f877a and want to display it on lcd. But problem is that no matter the message length that i am sending from pc ,i am able to receive and display only 2 characters on lcd. I am sending you the code. Looking forward for a reply. By the way i am using mikroC for writing the code.

Thank you,
rahul

/*/ LCD module connections*/
sbit LCD_RS at RB7_bit;
sbit LCD_EN at RB6_bit;
sbit LCD_D4 at RB5_bit;
sbit LCD_D5 at RB4_bit;
sbit LCD_D6 at RB3_bit;
sbit LCD_D7 at RB2_bit;

sbit LCD_RS_Direction at TRISB7_bit;
sbit LCD_EN_Direction at TRISB6_bit;
sbit LCD_D4_Direction at TRISB5_bit;
sbit LCD_D5_Direction at TRISB4_bit;
sbit LCD_D6_Direction at TRISB3_bit;
sbit LCD_D7_Direction at TRISB2_bit;
// End LCD module connections
unsigned char uart_rd;
int i;
void main() {

uart1_init(9600);
delay_ms(100);
Lcd_Init(); // Initialize Lcd

Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF);
while(1){
if(uart1_data_ready()==1){
delay_ms(100);
uart_rd=uart1_read();
lcd_chr_cp(uart_rd);
}

}
}

]]> https://electrosome.com/topic/pic16f877a-interfacing-with-pc/#post-7544 <![CDATA[Reply To: pic16f877a interfacing with pc]]> https://electrosome.com/topic/pic16f877a-interfacing-with-pc/#post-7544 Mon, 28 Oct 2013 04:10:16 +0000 Ligo George I also experienced this problem, while using uart and wifi module… I think this problem is due to less buffering space in pic microcontroller…there is only one RSR register for saving the received data…. So if the received data is not read, no data will be received further…
So try transmitting byte by byte..

]]> https://electrosome.com/topic/pic16f877a-interfacing-with-pc/#post-7547 <![CDATA[Reply To: pic16f877a interfacing with pc]]> https://electrosome.com/topic/pic16f877a-interfacing-with-pc/#post-7547 Mon, 28 Oct 2013 05:43:04 +0000 rahulo0 Thanks Ligo
can you please program it in mikroc and send the codes ?

]]> https://electrosome.com/topic/pic16f877a-interfacing-with-pc/#post-7548 <![CDATA[Reply To: pic16f877a interfacing with pc]]> https://electrosome.com/topic/pic16f877a-interfacing-with-pc/#post-7548 Mon, 28 Oct 2013 08:27:23 +0000 Ligo George Try it yourself.. it is simple…

When sending data from PC to PIC.. send it byte by byte…… If you need to send a sentence…
just transmit and receive byte by byte… and you can use a terminator (eg: ‘.’ for the end of a sentence) to know the end of a sentence….

PIC Microcontroller also has interrupt feature… you may use it, to reducing the continuous uart reading load ….

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