SSCOM32 usage instructions:
Download the user program to ATT7025/7027 through the serial port.
Usage steps:
(1) Select the communication port and then open the serial port, as shown in the figure below
(2) Tick DTR. DTR corresponds to the TMS1 pin of the chip. That is to say, by ticking DTR, TMS1 is pulled to low level.
(3) Tick RTS, and then uncheck it. RTS corresponds to the external reset pin of the chip. By ticking RTS, pull the external reset pin of the chip low to put the chip in reset state, and then pull RTS high to make the chip Complete reset.
(4) Move the mouse to the large text box above, click the Enter button, and then you can see a return signal, as shown in the figure below:
(5) Enter "M0000" from the keyboard, and there will be the following return signal, as shown in the figure below. Use this command to erase the 24Kflash in the chip.
(6) Enter "M8000" from the keyboard, and there will be the following return signal, as shown in the figure below. Use this command to erase the 8Kflash in the chip.
(7) Enter “E” from the keyboard, as shown below:
Note: After typing "E", the characters typed subsequently will no longer be displayed, but the typed characters can access the chip through the serial port.
(8) Enter "L" from the keyboard. You will no longer see the return character. Then click to open the file and select the hex file that the user needs to download.
Note: Typing "L" is the Load command. At this time, a hex file can be opened for writing to Flash.
(9) Click to send the file, as shown in the figure below:
(10) When the correct transmission is completed, as shown in the figure below:
The situation in the picture above indicates that the program is downloaded correctly.
(11) Uncheck DTR, which means pulling TMS1 of the chip high, switching the chip to Normal mode, pulling RTS low and then high, which means resetting the chip once, and then the program in the chip will start. It's running normally.
it works
it works
it works