LPC1700CMSIS_Examples - These are the examples provided for [[/users/fran…

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These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!

UART/Polling/uart_polling_test.c@0:bf7b9fba3924, 2011-03-20 (annotated)

Committer:: frank26080115
Date:: Sun Mar 20 05:38:56 2011 +0000
Revision:: 0:bf7b9fba3924

Who changed what in which revision?

User	Revision	Line number	New contents of line
frank26080115	0:bf7b9fba3924	1	/*********************************************************************//
frank26080115	0:bf7b9fba3924	2	* @file uart_polling_test.c
frank26080115	0:bf7b9fba3924	3	* @purpose This example describes how to using UART in polling mode
frank26080115	0:bf7b9fba3924	4	* @version 2.0
frank26080115	0:bf7b9fba3924	5	* @date 21. May. 2010
frank26080115	0:bf7b9fba3924	6	* @author NXP MCU SW Application Team
frank26080115	0:bf7b9fba3924	7	*---------------------------------------------------------------------
frank26080115	0:bf7b9fba3924	8	* Software that is described herein is for illustrative purposes only
frank26080115	0:bf7b9fba3924	9	* which provides customers with programming information regarding the
frank26080115	0:bf7b9fba3924	10	* products. This software is supplied "AS IS" without any warranties.
frank26080115	0:bf7b9fba3924	11	* NXP Semiconductors assumes no responsibility or liability for the
frank26080115	0:bf7b9fba3924	12	* use of the software, conveys no license or title under any patent,
frank26080115	0:bf7b9fba3924	13	* copyright, or mask work right to the product. NXP Semiconductors
frank26080115	0:bf7b9fba3924	14	* reserves the right to make changes in the software without
frank26080115	0:bf7b9fba3924	15	* notification. NXP Semiconductors also make no representation or
frank26080115	0:bf7b9fba3924	16	* warranty that such application will be suitable for the specified
frank26080115	0:bf7b9fba3924	17	* use without further testing or modification.
frank26080115	0:bf7b9fba3924	18	**********************************************************************/
frank26080115	0:bf7b9fba3924	19	#include "lpc17xx_uart.h"
frank26080115	0:bf7b9fba3924	20	#include "lpc17xx_libcfg.h"
frank26080115	0:bf7b9fba3924	21	#include "lpc17xx_pinsel.h"
frank26080115	0:bf7b9fba3924	22
frank26080115	0:bf7b9fba3924	23	/* Example group ----------------------------------------------------------- */
frank26080115	0:bf7b9fba3924	24	/** @defgroup UART_Polling Polling
frank26080115	0:bf7b9fba3924	25	* @ingroup UART_Examples
frank26080115	0:bf7b9fba3924	26	* @{
frank26080115	0:bf7b9fba3924	27	*/
frank26080115	0:bf7b9fba3924	28
frank26080115	0:bf7b9fba3924	29	/************************ PRIVATE DEFINITIONS ***********************/
frank26080115	0:bf7b9fba3924	30	#define UART_PORT 0
frank26080115	0:bf7b9fba3924	31
frank26080115	0:bf7b9fba3924	32	#if (UART_PORT == 0)
frank26080115	0:bf7b9fba3924	33	#define TEST_UART LPC_UART0
frank26080115	0:bf7b9fba3924	34	#elif (UART_PORT == 1)
frank26080115	0:bf7b9fba3924	35	#define TEST_UART (LPC_UART_TypeDef *)UART1
frank26080115	0:bf7b9fba3924	36	#endif
frank26080115	0:bf7b9fba3924	37
frank26080115	0:bf7b9fba3924	38
frank26080115	0:bf7b9fba3924	39	/************************ PRIVATE VARIABLES ***********************/
frank26080115	0:bf7b9fba3924	40	uint8_t menu1[] = "Hello NXP Semiconductors \n\r";
frank26080115	0:bf7b9fba3924	41	uint8_t menu2[] = "UART polling mode demo \n\r\t MCU LPC17xx - ARM Cortex-M3 \n\r\t UART0 - 9600bps \n\r";
frank26080115	0:bf7b9fba3924	42	uint8_t menu3[] = "UART demo terminated!";
frank26080115	0:bf7b9fba3924	43
frank26080115	0:bf7b9fba3924	44	/************************ PRIVATE FUNCTIONS ***********************/
frank26080115	0:bf7b9fba3924	45	void print_menu(void);
frank26080115	0:bf7b9fba3924	46
frank26080115	0:bf7b9fba3924	47	/-------------------------PRIVATE FUNCTIONS------------------------------/
frank26080115	0:bf7b9fba3924	48	/*******************************************************************//
frank26080115	0:bf7b9fba3924	49	* @brief Print Welcome menu
frank26080115	0:bf7b9fba3924	50	* @param[in] none
frank26080115	0:bf7b9fba3924	51	* @return None
frank26080115	0:bf7b9fba3924	52	**********************************************************************/
frank26080115	0:bf7b9fba3924	53	void print_menu(void)
frank26080115	0:bf7b9fba3924	54	{
frank26080115	0:bf7b9fba3924	55	UART_Send(TEST_UART, menu1, sizeof(menu1), BLOCKING);
frank26080115	0:bf7b9fba3924	56	UART_Send(TEST_UART, menu2, sizeof(menu2), BLOCKING);
frank26080115	0:bf7b9fba3924	57	}
frank26080115	0:bf7b9fba3924	58
frank26080115	0:bf7b9fba3924	59
frank26080115	0:bf7b9fba3924	60
frank26080115	0:bf7b9fba3924	61	/-------------------------MAIN FUNCTION------------------------------/
frank26080115	0:bf7b9fba3924	62	/*******************************************************************//
frank26080115	0:bf7b9fba3924	63	* @brief c_entry: Main UART program body
frank26080115	0:bf7b9fba3924	64	* @param[in] None
frank26080115	0:bf7b9fba3924	65	* @return int
frank26080115	0:bf7b9fba3924	66	**********************************************************************/
frank26080115	0:bf7b9fba3924	67	int c_entry(void)
frank26080115	0:bf7b9fba3924	68	{
frank26080115	0:bf7b9fba3924	69	// UART Configuration structure variable
frank26080115	0:bf7b9fba3924	70	UART_CFG_Type UARTConfigStruct;
frank26080115	0:bf7b9fba3924	71	// UART FIFO configuration Struct variable
frank26080115	0:bf7b9fba3924	72	UART_FIFO_CFG_Type UARTFIFOConfigStruct;
frank26080115	0:bf7b9fba3924	73	// Pin configuration for UART0
frank26080115	0:bf7b9fba3924	74	PINSEL_CFG_Type PinCfg;
frank26080115	0:bf7b9fba3924	75
frank26080115	0:bf7b9fba3924	76	uint32_t idx, len;
frank26080115	0:bf7b9fba3924	77	__IO FlagStatus exitflag;
frank26080115	0:bf7b9fba3924	78	uint8_t buffer[10];
frank26080115	0:bf7b9fba3924	79
frank26080115	0:bf7b9fba3924	80	#if (UART_PORT == 0)
frank26080115	0:bf7b9fba3924	81	/*
frank26080115	0:bf7b9fba3924	82	* Initialize UART0 pin connect
frank26080115	0:bf7b9fba3924	83	*/
frank26080115	0:bf7b9fba3924	84	PinCfg.Funcnum = 1;
frank26080115	0:bf7b9fba3924	85	PinCfg.OpenDrain = 0;
frank26080115	0:bf7b9fba3924	86	PinCfg.Pinmode = 0;
frank26080115	0:bf7b9fba3924	87	PinCfg.Pinnum = 2;
frank26080115	0:bf7b9fba3924	88	PinCfg.Portnum = 0;
frank26080115	0:bf7b9fba3924	89	PINSEL_ConfigPin(&PinCfg);
frank26080115	0:bf7b9fba3924	90	PinCfg.Pinnum = 3;
frank26080115	0:bf7b9fba3924	91	PINSEL_ConfigPin(&PinCfg);
frank26080115	0:bf7b9fba3924	92	#endif
frank26080115	0:bf7b9fba3924	93
frank26080115	0:bf7b9fba3924	94	#if (UART_PORT == 1)
frank26080115	0:bf7b9fba3924	95	/*
frank26080115	0:bf7b9fba3924	96	* Initialize UART1 pin connect
frank26080115	0:bf7b9fba3924	97	*/
frank26080115	0:bf7b9fba3924	98	PinCfg.Funcnum = 2;
frank26080115	0:bf7b9fba3924	99	PinCfg.OpenDrain = 0;
frank26080115	0:bf7b9fba3924	100	PinCfg.Pinmode = 0;
frank26080115	0:bf7b9fba3924	101	PinCfg.Pinnum = 0;
frank26080115	0:bf7b9fba3924	102	PinCfg.Portnum = 2;
frank26080115	0:bf7b9fba3924	103	PINSEL_ConfigPin(&PinCfg);
frank26080115	0:bf7b9fba3924	104	PinCfg.Pinnum = 1;
frank26080115	0:bf7b9fba3924	105	PINSEL_ConfigPin(&PinCfg);
frank26080115	0:bf7b9fba3924	106	#endif
frank26080115	0:bf7b9fba3924	107
frank26080115	0:bf7b9fba3924	108	/* Initialize UART Configuration parameter structure to default state:
frank26080115	0:bf7b9fba3924	109	* Baudrate = 9600bps
frank26080115	0:bf7b9fba3924	110	* 8 data bit
frank26080115	0:bf7b9fba3924	111	* 1 Stop bit
frank26080115	0:bf7b9fba3924	112	* None parity
frank26080115	0:bf7b9fba3924	113	*/
frank26080115	0:bf7b9fba3924	114	UART_ConfigStructInit(&UARTConfigStruct);
frank26080115	0:bf7b9fba3924	115
frank26080115	0:bf7b9fba3924	116	// Initialize UART0 peripheral with given to corresponding parameter
frank26080115	0:bf7b9fba3924	117	UART_Init(TEST_UART, &UARTConfigStruct);
frank26080115	0:bf7b9fba3924	118
frank26080115	0:bf7b9fba3924	119	/* Initialize FIFOConfigStruct to default state:
frank26080115	0:bf7b9fba3924	120	* - FIFO_DMAMode = DISABLE
frank26080115	0:bf7b9fba3924	121	* - FIFO_Level = UART_FIFO_TRGLEV0
frank26080115	0:bf7b9fba3924	122	* - FIFO_ResetRxBuf = ENABLE
frank26080115	0:bf7b9fba3924	123	* - FIFO_ResetTxBuf = ENABLE
frank26080115	0:bf7b9fba3924	124	* - FIFO_State = ENABLE
frank26080115	0:bf7b9fba3924	125	*/
frank26080115	0:bf7b9fba3924	126	UART_FIFOConfigStructInit(&UARTFIFOConfigStruct);
frank26080115	0:bf7b9fba3924	127
frank26080115	0:bf7b9fba3924	128	// Initialize FIFO for UART0 peripheral
frank26080115	0:bf7b9fba3924	129	UART_FIFOConfig(TEST_UART, &UARTFIFOConfigStruct);
frank26080115	0:bf7b9fba3924	130
frank26080115	0:bf7b9fba3924	131
frank26080115	0:bf7b9fba3924	132	// Enable UART Transmit
frank26080115	0:bf7b9fba3924	133	UART_TxCmd(TEST_UART, ENABLE);
frank26080115	0:bf7b9fba3924	134
frank26080115	0:bf7b9fba3924	135	// print welcome screen
frank26080115	0:bf7b9fba3924	136	print_menu();
frank26080115	0:bf7b9fba3924	137
frank26080115	0:bf7b9fba3924	138	// Reset exit flag
frank26080115	0:bf7b9fba3924	139	exitflag = RESET;
frank26080115	0:bf7b9fba3924	140
frank26080115	0:bf7b9fba3924	141	/* Read some data from the buffer */
frank26080115	0:bf7b9fba3924	142	while (exitflag == RESET)
frank26080115	0:bf7b9fba3924	143	{
frank26080115	0:bf7b9fba3924	144	len = 0;
frank26080115	0:bf7b9fba3924	145	while (len == 0)
frank26080115	0:bf7b9fba3924	146	{
frank26080115	0:bf7b9fba3924	147	len = UART_Receive(TEST_UART, buffer, sizeof(buffer), NONE_BLOCKING);
frank26080115	0:bf7b9fba3924	148	}
frank26080115	0:bf7b9fba3924	149
frank26080115	0:bf7b9fba3924	150	/* Got some data */
frank26080115	0:bf7b9fba3924	151	idx = 0;
frank26080115	0:bf7b9fba3924	152	while (idx < len)
frank26080115	0:bf7b9fba3924	153	{
frank26080115	0:bf7b9fba3924	154	if (buffer[idx] == 27)
frank26080115	0:bf7b9fba3924	155	{
frank26080115	0:bf7b9fba3924	156	/* ESC key, set exit flag */
frank26080115	0:bf7b9fba3924	157	UART_Send(TEST_UART, menu3, sizeof(menu3), BLOCKING);
frank26080115	0:bf7b9fba3924	158	exitflag = SET;
frank26080115	0:bf7b9fba3924	159	}
frank26080115	0:bf7b9fba3924	160	else if (buffer[idx] == 'r')
frank26080115	0:bf7b9fba3924	161	{
frank26080115	0:bf7b9fba3924	162	print_menu();
frank26080115	0:bf7b9fba3924	163	}
frank26080115	0:bf7b9fba3924	164	else
frank26080115	0:bf7b9fba3924	165	{
frank26080115	0:bf7b9fba3924	166	/* Echo it back */
frank26080115	0:bf7b9fba3924	167	UART_Send(TEST_UART, &buffer[idx], 1, BLOCKING);
frank26080115	0:bf7b9fba3924	168	}
frank26080115	0:bf7b9fba3924	169	idx++;
frank26080115	0:bf7b9fba3924	170	}
frank26080115	0:bf7b9fba3924	171	}
frank26080115	0:bf7b9fba3924	172
frank26080115	0:bf7b9fba3924	173	// wait for current transmission complete - THR must be empty
frank26080115	0:bf7b9fba3924	174	while (UART_CheckBusy(TEST_UART) == SET);
frank26080115	0:bf7b9fba3924	175
frank26080115	0:bf7b9fba3924	176	// DeInitialize UART0 peripheral
frank26080115	0:bf7b9fba3924	177	UART_DeInit(TEST_UART);
frank26080115	0:bf7b9fba3924	178
frank26080115	0:bf7b9fba3924	179	/* Loop forever */
frank26080115	0:bf7b9fba3924	180	while(1);
frank26080115	0:bf7b9fba3924	181	return 1;
frank26080115	0:bf7b9fba3924	182	}
frank26080115	0:bf7b9fba3924	183
frank26080115	0:bf7b9fba3924	184	/* With ARM and GHS toolsets, the entry point is main() - this will
frank26080115	0:bf7b9fba3924	185	allow the linker to generate wrapper code to setup stacks, allocate
frank26080115	0:bf7b9fba3924	186	heap area, and initialize and copy code and data segments. For GNU
frank26080115	0:bf7b9fba3924	187	toolsets, the entry point is through __start() in the crt0_gnu.asm
frank26080115	0:bf7b9fba3924	188	file, and that startup code will setup stacks and data */
frank26080115	0:bf7b9fba3924	189	int main(void)
frank26080115	0:bf7b9fba3924	190	{
frank26080115	0:bf7b9fba3924	191	return c_entry();
frank26080115	0:bf7b9fba3924	192	}
frank26080115	0:bf7b9fba3924	193
frank26080115	0:bf7b9fba3924	194
frank26080115	0:bf7b9fba3924	195	#ifdef DEBUG
frank26080115	0:bf7b9fba3924	196	/*******************************************************************************
frank26080115	0:bf7b9fba3924	197	* @brief Reports the name of the source file and the source line number
frank26080115	0:bf7b9fba3924	198	* where the CHECK_PARAM error has occurred.
frank26080115	0:bf7b9fba3924	199	* @param[in] file Pointer to the source file name
frank26080115	0:bf7b9fba3924	200	* @param[in] line assert_param error line source number
frank26080115	0:bf7b9fba3924	201	* @return None
frank26080115	0:bf7b9fba3924	202	*******************************************************************************/
frank26080115	0:bf7b9fba3924	203	void check_failed(uint8_t *file, uint32_t line)
frank26080115	0:bf7b9fba3924	204	{
frank26080115	0:bf7b9fba3924	205	/* User can add his own implementation to report the file name and line number,
frank26080115	0:bf7b9fba3924	206	ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
frank26080115	0:bf7b9fba3924	207
frank26080115	0:bf7b9fba3924	208	/* Infinite loop */
frank26080115	0:bf7b9fba3924	209	while(1);
frank26080115	0:bf7b9fba3924	210	}
frank26080115	0:bf7b9fba3924	211	#endif
frank26080115	0:bf7b9fba3924	212
frank26080115	0:bf7b9fba3924	213	/*
frank26080115	0:bf7b9fba3924	214	* @}
frank26080115	0:bf7b9fba3924	215	*/

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Type:	Program
Created:	20 Mar 2011
Imports:	199
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	7

UART/Polling/uart_polling_test.c@0:bf7b9fba3924, 2011-03-20 (annotated)

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