this code is to emulate the keyPad with microcontroller Atmega 16 using UART controller
File list:
UART_SPI_KeyEnc
..............\UART_SPI_KeyEnc
..............\...............\Debug
..............\...............\.....\makedep.mk
..............\...............\.....\Makefile
..............\...............\.....\UART_SPI_KeyEnc.d
..............\...............\.....\UART_SPI_KeyEnc.eep
..............\...............\.....\UART_SPI_KeyEnc.elf
..............\...............\.....\UART_SPI_KeyEnc.hex
..............\...............\.....\UART_SPI_KeyEnc.lss
..............\...............\.....\UART_SPI_KeyEnc.map
..............\...............\.....\UART_SPI_KeyEnc.o
..............\...............\UART_SPI_KeyEnc.avrgccproj
..............\...............\UART_SPI_KeyEnc.c
..............\UART_SPI_KeyEnc.avrsln
..............\UART_SPI_KeyEnc.avrsuo