STC MCU One-key Downloader-EEWORLD

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This article introduces the principle of STC MCU one-key downloader. When using STC-ISP software to download STC MCU programs, after clicking the direct download button, the MCU needs to be powered on and cold-started. This may not be a problem if the download is not frequent, but for frequent downloads of STC MCU programs, each download requires a power-on and cold-start, which not only adds inconvenience to the user, but also aggravates the loss of switching devices, increases the operating burden, and reduces the download efficiency. The STC MCU one-key downloader introduced below completely solves the above problems.

Using the STC MCU one-key downloader, you only need to click "Download" to complete the program download, and there is no need to manually power on. The figure below is the schematic diagram of the STC MCU one-key downloader (the schematic diagram is attached). The principle of this downloader is: through a MCU with serial port resources (STC15F102 in the circuit), its serial port is connected in parallel with the serial port of the user's MCU. The monitoring MCU detects the serial port information interaction between the user's MCU and the external device through the corresponding monitoring program. When the STC-ISP software is monitored to download the command stream correctly, it means that the user is downloading the program. At this time, the downloader automatically starts a hard restart to power on the user's MCU and complete the program download.

Reference address：STC MCU One-key Downloader

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