![]() USB-to-TTL (5V) adaptor like in the picture above (these can be found easily via eBay) – my adaptor uses the popular CP2102 USB-to-UART bridge.STC MCU ( STC12C5410AD, STC12C5412AD, STC12C5620AD, …) – here we using the LQFP-32 pins version (right chip in the picture above).easy to flash: no external programmer is required – TX/RX line is used to flash the MCU.almost nothing has changed since its beginning (same registers – the 1980’s code you find still works).Todays 8051 compatible MCUs have most needed integrated (flash memory, EEPROM, ADC, UART, PWM, …).simple to program (simple register maps etc.).very popular (you can find plenty of code examples).This article describes the first steps how you start programming a 8051 compatible MCU (aka C51), in this case the STC12C5412AD using a USB-to-TTL adaptor.
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