Throughout these tutorials we’ll build several projects using LPC entire project from site and jump start programming of NXP LPC Microcontroller. We will also see an example program to implement the UART protocol in LPC and how to send a. This article is about how to start programming for LPC micro-controller. For the new reader, it is more important to have basic knowledge of pin.

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We are going to discuss the only UART0. After this tutorial, you should be able to extend it to UART1. UART module and registers.

Below table shows the multiplexed UART’s pins. Thus it can store bytes of data received on UART without overwriting.

Bit 0 — FIFO: WordLenghtSelect These two bits are used to select the character length 5-bit character length 6-bit character length 7-bit character length pdogramming character length. Bit 2 — Stop Bit Selection: Bit 3 — Parity Enable: This bit is used to Enable or Disable the Parity generation and checking.

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These two bits will be used to select the type of parity.

LPC ARM7 Tutorials: Free Online

Gutorial of 1s in the transmitted character and the attached parity bit will be odd. Number of 1s in the transmitted character and the attached parity bit will be even. Bit 6 — Break Control Disable break transmission.

Bit 8 — DLAB: Divisor Latch Access Bit This bit is used to enable the access to divisor latch.

How to Start Programming for ARM7 Based LPC2148 Microcontroller

Bit 0 — RDR: This bit will be automatically cleared when RBR is empty. Bit 1 — OE: Bit 2 — PE: Parity Error This bit is set when the receiver detects a error in the Parity.

Bit 3 — FE: Bit 4 — BI: Break Interrupt This bit is set when the RXDn is held in the spacing state all zeroes for one full character transmission No Break interrupt Break Interrupt detected. Bit 5 — THRE: It is automatically cleared when the THR is written.


LPC2148 Tutorials

Bit 6 — TEMT: Bit 7 — RXFE: Programmng 7 — TXEN: If this bit is cleared to 0 while a character is being sent, the transmission of that character is completed, but no further characters are sent until this bit is set again.

In other words, prgramming 0 in this bit blocks the transfer of characters. For this you have to include the uart. Download the complete project folder from this link.

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