Free evaluation - Topmicro intelligent display module (7) practical application

wenyangzeng

Free evaluation - Topmicro intelligent display module (7) practical application [Copy link]

Free evaluation - Topmicro intelligent display module (7) practical application

As an evaluation of actual application, STM8S105S4-PKT is used to drive this smart screen.

The arrangement is as follows:
1. The RS232 serial port of STM8S105S4-PKT is connected to the RS232 serial port of the smart screen.
2. The ADC3 of STM8S105S4-PKT is originally connected to a potentiometer for ADC conversion, and the conversion result data of ADC3 is used to drive the display of a progress bar on the smart screen.
3. The smart screen sets two different background pages. The first page arranges a password touch screen. Its password input control is very considerate. The entered password is displayed as an "*" in the window. Here, it is assumed that the 6-digit password 123456 is entered. When the "OK" button is pressed, the smart screen automatically transmits the password string from the serial port:
AA 77 00 00 00 80 30 31 32 33 34 35 36 CC 33 C3 3C
4. The serial port of the STM8 microcontroller receives the returned password information. If the password is correct, it sends the second page display command:
AA 70 00 01 CC 33 C3 3C
Then the STM8 performs ADC conversion and returns the conversion result to the smart screen to drive the display of the progress bar:

AA 3D 00 08 00 00 00 63 CC 33 C3 3C

The page setting process of SGTools will not be repeated, please refer to the previous posts of the OP.

Password keyboard configuration

Progress bar configuration

Partial code

unsigned char Pass_OK[8]={0xAA,0x70,0x00,0x01,0xCC,0x33,0xC3,0x3C};
unsigned char ADC_dat[12]={0xAA,0x3D,0x00,0x08,0X00,0X00,0X00,0X50,0xCC,0x33,0xC3,0x3C};

void Send_OK(void)
{
for(Tx_Count=0;Tx_Count<8;Tx_Count++)
  {
   while (!(UART2_SR & 0x80));
      UART2_DR=Pass_OK[Tx_Count];
  }
}

void Send_ADC(void)
{
for(Tx_Count=0;Tx_Count<12;Tx_Count++)
  {
   while (!(UART2_SR & 0x80));
      UART2_DR=ADC_dat[Tx_Count];
  }
}

#pragma vector  = UART2_R_RXNE_vector
__interrupt void UART2_R_RXNE_IRQHandler(void)
{
if(UART2_SR_RXNE==1)
    {
     Rx_buffers[Rx_Count++]=UART2_DR;
    }
  else
    if(UART2_SR_IDLE==1)
    {
      i=UART2_SR;
      i=UART2_DR;
      if((Rx_buffers[1]==0x77)&&(Rx_buffers[12]==0x00))
      {
        if((Rx_buffers[6]==0x31)&&(Rx_buffers[7]==0x32)
           &&(Rx_buffers[8]==0x33)&&(Rx_buffers[9]==0x34)
             &&(Rx_buffers[10]==0x35)&&(Rx_buffers[11]==0x36))
          Send_OK();
        Count=1;
      }
      Rx_Count=0;
    }
}

video

From the evaluation process, I realized that this smart screen is easy to program and saves a lot of work in graphics programming. It has very low hardware requirements. As long as an 8-bit microcontroller such as STM8S is used, it can easily drive a 1024×600 TFT screen to get a very satisfactory display effect.

This review is over. Thank you EEWORLD and TOPWAY.

Jacktang

As long as the 8-bit STM8S is used, this can be achieved, and the display is very clear.

jobszheng5

I think it is very suitable to be applied to traditional PLC

wenyangzeng

jobszheng5 posted on 2021-11-8 10:22 I think it is very suitable for application on traditional PLC

This smart screen simplifies graphic programming and is suitable for many application environments.

littleshrimp

This graphical programming looks really convenient

wenyangzeng

littleshrimp posted on 2021-11-8 12:05 This graphical programming looks really convenient

It is indeed very convenient

慈俭不敢为人先

The network port function of this product is its feature, which supports Internet remote control. I recommend you to try it.