MIKROC UART INTERRUPT EXAMPLE SERIAL
MIKROC UART INTERRUPT EXAMPLE DRIVER
MIKROC UART INTERRUPT EXAMPLE FREE

Once the module is initialized whatever value is loaded into the register TXREG will be transmitted through UART, but transmission might overlap. TXREG = bt //Load the transmitter buffer with the received value

MIKROC UART INTERRUPT EXAMPLE FREE

While(!TXIF) // hold the program till TX buffer is free **Function to send one byte of date to UART**// The below function can be used to transmit data through the UART module: Now the Module is configured as UART and is ready for operation. With this we complete our initialization setup. If there has to be high reliability need to be established then 9-bit mode can be selected.

The bits TX9 and RX9 have to be made zero so that we operate in 8-bit mode. _UART module up and ready for transmission and reception_// **Lets prepare for transmission & reception**// In this tutorial we will be both sending and receiving data between MCU and computer hence we have to enable both TXEN and CREN bits.

MIKROC UART INTERRUPT EXAMPLE SERIAL

According to datasheet (page 13) it is always advantageous to enable it, as it can eliminate errors during communication.Р”Р„s said earlier we will be working in Asynchronous mode, hence the bit SYNC should be made zero and bit SPEM must be made high to enable serial pins (TRISC6 and TRICSC5) The bit BRGH has to be made high to enable high speed bit rate.

SPBRG = ( ( _XTAL_FREQ/16 ) / Baud_rate) РІР‚вЂњ 1 The value of the baud rate has to be set using the register SPBRG, the value depends on the value of the External crystal frequency, the formulae to calculate the baud rate is shown below: **Initialize SPBRG register for requiredР”В«aud rate and set BRGH for fast baud_rate**/ This can be one of the many default values, but in this program we are using 9600 since its the most used baud rate. TheР’В baud rateР’В is theР’В rateР’В at which information is transferred in a communication channel. According to datasheet letРІР‚в„ўs declare TX as output and RX as input. The Tx and Rx pins are physically present at the pins RC6 and RC7. Initializing the UART module of the PIC Microcontroller: LetРІР‚в„ўs define the configuration bits and start with the UART initialization function. Like all modules (ADC, Timer, PWM) we should also initialize our USART module of our PIC16F877A MCU and instruct it to work in UART 8-bit communication mode. Programming PIC Microcontroller for UART Communication: But, if it doesnРІР‚в„ўt relax!!! Use the comment section and I will help you out.

MIKROC UART INTERRUPT EXAMPLE DRIVER

Note: Each RS232 to USB converter would require a special driver to be installed most of them should get installed automatically as soon as you plug in the device. The one which we are using is shown below There are ways to design your own circuit instead of buying your own module but they are not reliable as they are subjected noise. Detailed Video is also given at the end of this tutorial.Р”Р„ RS232 to USB converter is required to convert the serial data into computer readable form. We will test the output using Hyper Terminal in computer. The status of the LED will be sent to your laptop from the PIC MCU. This type of communication does not share a common clock hence a common ground is very important for the system to work.Р”Р„t the end of this tutorial you will be able establish a communication (UART) between your computer and your PIC Microcontroller and toggle an LED on the PIC board from your laptop. The ground of both devices should also be made common. UART uses two data lines for sending (Tx) and receiving (Rx) data. As it is asynchronous it doesn't need to send clock signal along with the data signals. There are also two different modes namely the 8-bit and 9-bit mode, in this tutorial we will configure the USART module to work in Asynchronous mode with 8-bit communication system, since it is the most used type of communication. The USART can be configured in the following modes:

Mikroc uart interrupt example