MKD025B-144-KG1-UN | REXROTH | Serial communication main program

Description

MKD025B-144-KG1-UN | REXROTH | Serial communication main program

1. .Many products are not yet on the shelves please contact us for more products
2. .If there is any inconsistency between the product model and the picture on display, the model shall prevail. Contact us for the specific product picture, and we will arrange to take photos in the warehouse for confirmation
3. .We have 16 shared warehouses around the world, so please understand that it can sometimes take several hours to accurately return to you. Of course, we will respond to your concerns as soon as possible

The MKD025B-144-KG1-UN microcontroller has a USART function for serial communication. Here, its asynchronous sending and receiving functions are utilized. In asynchronous serial communication mode, the USART module receives information on the RX pin of the microcontroller and sends it on the TX pin. The serial information is encoded using a 1-bit start bit, 8-bit data, and 1-bit stop bit, which can generate a standard baud rate clock using the system clock signal from the time base oscillator. When the data sent by the upper computer is sampled and received by the US-ART module, the true nature of the opposite end data is restored. Then, under the control of the shift clock pulse provided by the baud rate generator, the restored data, as well as the start and stop bits, are gradually moved into the RSR register.

After the data is moved, it is loaded into MKD025B-144-KG1-UN (if it is empty), and the “serial parallel” conversion is also completed; Next, set the interrupt flag RCIF to 1. Generate an interrupt notification to the CPU to read data from the RCREG register. In the program of this article, the data is received under such an interrupt and then sent to two optocouplers through the PWM program segment via the RC0 and RC1 pins of the PIC16F877A microcontroller. Then send it to the excitation circuit for excitation. The flowchart of the serial communication main program and interrupt service program is shown in Figure 5.

Mailbox：sauldcsplc@gmail.com |MKD025B-144-KG1-UN
www.abbgedcs.com | Qiming Industrial Automation| Simon +86 13822101417