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Hello everyone, I recently encountered a problem. My home ISP (Internet Service Provider) provides a high-speed Internet connection of 200Mbps, but when I connect to WiFi, the speed is only about 50Mbps. This confuses me because I expect to be able to take full advantage of the high-speed internet I paid for. I've tried a few things to increase WiFi speed, including moving the device closer to the router, making sure the router isn't blocked by objects, and also trying using the 5GHz band. However, the speed is not significantly improved. I would like to ask friends on the forum if there are any other methods that I can try to improve the WiFi connection speed. Do I need to replace the router or take other steps to resolve this issue?
Hello，everyone These days I met a problem about STM32F103VCT6. After the second edition of the STM32F103VCT6 single-chip microcomputer system I made recently, I found that I could not download by ISP, and the isps did not change the circuit line completely compared with the first version. However, it is ok to use the SW download mode, and the ISP serial port can communicate normally when the program is good. Under the ISP mode, I shook hands with serial assistants send bootloader byte 0 x7f, returned to 0 x7f and 0 x79 two bytes, while the normal board should only receive a byte 0 x79. Why is this 0 x7f, has anyone encountered the same situation, and how to solve. The methods I have tried: 1. Replace single chip microcomputer, max232 and peripheral capacitance, serial port signal driver IC, etc 2. The power circuit has also been changed, and the first plate of power supply has been tried.