the small-scale single-chip applications AT89S51. If you use the Page mode, it is very fast. Configuring the port pins as output, the state of the port pins can be controlled in firmware either high or low.
In order to use Arduino as an ISP, we have to burn the ArduinoISP sketch to Arduino itself. USB to TTL (CH340G) and maybe Logic level converter to. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile If connections are proper then there will be a message at bottom "AT89S51/52 Detected". The on-chip flash allows the program memory to be reprogrammed in-system or by a conventional non-volatile memory programmer. From Select Chip Menu Select the MCU-AT89S52. The programming pins in the ATMEL chip (the pins that help to program) must connect to this five lines coming to the target board. It can be erased and program to a maximum of 1000 times. Remark:-You can Program only AT89S51, AT89S52 and AT89S2051 microcontroller with the AT89S52 SPI programmer.
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