12/11/2022 0 Comments Serial eeprom programmer 93c56en![]() ![]() This pin is always driven by the programmer, and the target system should never attempt to drive this wire when target reset is active. When programming the AVR in Serial mode, the In-System Programmer supplies data to the target on the MOSI pin. Immediately after the Reset goes active, this pin will be driven to zero by the programmer. When programming the AVR or other SPI chips in Serial mode, the In-System Programmer supplies clock information on the SCK pin. To simplify this operation, the target reset is controlled by the In-System Programmer. When erasing the chip, the reset line has to be toggled to end the erase cycle. The target AVR microcontroller will enter Serial Programming mode only when its reset line is active (low). This is done by connecting ground of the target to ground of the programmer. The in-system programmer and target system need to operate with the same reference voltage. Verify functions from the software screen.Īccording to the device information box from the software, signal connections should comply with the table below.įollowing is an example pinout of SPI EEPROM:
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