黄土马家

CH554E MINI development board

Overview

CH554 is an enhanced E8051 core microcontroller compatible with MCS51. 79% of the instructions are single-byte single-cycle instructions. It has a built-in 24MHz clock source, built-in 1K+256B RAM, and 16KB iFlash-ROM. CH554 provides rich interface resources, including ADC analog-to-digital conversion, 3 sets of timers and signal capture and PWM, dual asynchronous serial ports, SPI, etc. CH554 provides a 6-channel capacitance detection module and supports up to 15 touch buttons in mutual capacitance mode. CH554 has a built-in full-speed USB controller and supports USB HOST host mode and USB DEVICE device mode.
This is an ultra-small size (30mmX13mm) development board based on the MSOP10 package, 8-bit cost-effective enhanced USB microcontroller CH554E. It is mainly used to learn the CH554 microcontroller and verify the design of capacitive touch buttons. The development board leads to the microcontroller pins (silk-printed on the back of the board), two LED indicators and two capacitive touch buttons.
The program can be downloaded via USB or serial port. When downloading via USB, first power off the board, press and hold the download button SW1, insert the board into the computer, release SW1, and use WCHISPToolISP software to download. To download the serial port, use the P1.6 (RXD) and P1.7 (TXD) pins from the circuit board (silk screen printed on the back of the board) to connect the USB to serial port module, and use the WCHISPToolISP software to download.

Program development can be carried out in Keil. The following is a small program for LED lights. For more reference materials and routines, please refer to the official website.

#include "..PublicCH554.H"                                                   
#include "..PublicDebug.H"
#include "GPIO.H"
#include "stdio.h"
#include "string.h"
#pragma  NOAREGS
sbit LED1 = P1^6;
sbit LED2 = P1^7;
void LED_Init( ) 
{
Port1Cfg(1,6);
Port1Cfg(1,7);        
LED1 = 0;
LED2 = 0;
GPIOInterruptCfg();
}
void main( ) 
{
CfgFsys( );                                                               
mDelaymS(50);
LED_Init();
EA = 1;
while(1){
LED1 = ~LED1;       
LED2 = ~LED2;       
mDelaymS(1000);         
}
}

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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