Implementing SPI Communication on LPC2138 with 74HC595 LED Driver
LPC2138 integrates a hardware SPI peripheral supporting synchronous, full-duplex serial communication. During each transfer cycle, the master transmits one byte while simultaneously receiving one byte from the slave — even when the slave response is irrelevant, as in driving a 74HC595 shift register.
The following implementation configures the ...
Posted on Wed, 26 Aug 2026 16:24:13 +0000 by brokenme