[EthercatDevice_DmpLCD_Generic]
Description
Draw a circle outline on the LCD display of the EtherCAT slave device with a given color.
Derived Class:
| Class Name | Vendor ID | Product Code |
| EthercatDevice_QECR11UN01 | 0x00000bc3 | 0x0086d103 |
| EthercatDevice_QECR00UN01 | 0x00000bc3 | 0x0086d100 |
Syntax
int lcdDrawCircle(int16_t x, int16_t y, int16_t r, uint16_t color);
Parameters
[in] int16_t x
The X-axis position of the center point of a circle to be drawn.[in] int16_t y
The Y-axis position of the center point of a circle to be drawn.[in] int16_t r
The radius of a circle to be drawn.[in] uint16_t color
The color of the pixel to be drawn. It is a 16-bit unsigned integer that encodes the color information using the RGB565 format.
Return Value
Return an error code. If the returned value is zero, it indicates a successful execution of this function.
Comment
This function must be called after a successful execution of EthercatMaster::begin(). This function is non-blocking and can be called within the Cyclic Callback.
Example
#include "Ethercat.h"
EthercatMaster master;
EthercatDevice_QECR00UN01 slave;
void CyclicCallback() {
slave.update();
}
void setup() {
master.begin();
slave.attach(0, master);
slave.lcdInit(ECAT_LCD_ILI9341_1);
master.attachCyclicCallback(CyclicCallback);
master.start();
slave.lcdDrawCircle(100, 100, 50, 0xFFE0);
}
void loop() {
// ...
}Please see EthercatDevice_DmpLCD_Generic Class for more QEC Stepper Drivers instructions and API usage.
