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!

SSP/Master/ssp_master.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 ssp_master.c
frank26080115	0:bf7b9fba3924	3	* @purpose This example describes how to use SPP in master 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_ssp.h"
frank26080115	0:bf7b9fba3924	20	#include "lpc17xx_libcfg.h"
frank26080115	0:bf7b9fba3924	21	#include "lpc17xx_pinsel.h"
frank26080115	0:bf7b9fba3924	22	#include "debug_frmwrk.h"
frank26080115	0:bf7b9fba3924	23	#include "lpc17xx_gpio.h"
frank26080115	0:bf7b9fba3924	24
frank26080115	0:bf7b9fba3924	25	/* Example group ----------------------------------------------------------- */
frank26080115	0:bf7b9fba3924	26	/** @defgroup SSP_Master Master
frank26080115	0:bf7b9fba3924	27	* @ingroup SSP_Examples
frank26080115	0:bf7b9fba3924	28	* @{
frank26080115	0:bf7b9fba3924	29	*/
frank26080115	0:bf7b9fba3924	30
frank26080115	0:bf7b9fba3924	31	/************************ PRIVATE DEFINTIONS **********************/
frank26080115	0:bf7b9fba3924	32	/** Max buffer length */
frank26080115	0:bf7b9fba3924	33	#define BUFFER_SIZE 0x40
frank26080115	0:bf7b9fba3924	34
frank26080115	0:bf7b9fba3924	35
frank26080115	0:bf7b9fba3924	36	/************************ PRIVATE VARIABLES ***********************/
frank26080115	0:bf7b9fba3924	37	uint8_t menu1[] =
frank26080115	0:bf7b9fba3924	38	"********************************************************************************\n\r"
frank26080115	0:bf7b9fba3924	39	"Hello NXP Semiconductors \n\r"
frank26080115	0:bf7b9fba3924	40	"SSP demo \n\r"
frank26080115	0:bf7b9fba3924	41	"\t - MCU: LPC17xx \n\r"
frank26080115	0:bf7b9fba3924	42	"\t - Core: ARM Cortex-M3 \n\r"
frank26080115	0:bf7b9fba3924	43	"\t - Communicate via: UART0 - 115200bps \n\r"
frank26080115	0:bf7b9fba3924	44	"\t An example of SSP using polling mode to test the SSP driver \n\r"
frank26080115	0:bf7b9fba3924	45	" This example uses SSP in SPI mode as master to communicate with an SSP slave device \n\r"
frank26080115	0:bf7b9fba3924	46	" The master and slave transfer together a number of data byte \n\r"
frank26080115	0:bf7b9fba3924	47	"********************************************************************************\n\r";
frank26080115	0:bf7b9fba3924	48	uint8_t menu2[] = "Demo terminated! \n\r";
frank26080115	0:bf7b9fba3924	49
frank26080115	0:bf7b9fba3924	50	// SSP Configuration structure variable
frank26080115	0:bf7b9fba3924	51	SSP_CFG_Type SSP_ConfigStruct;
frank26080115	0:bf7b9fba3924	52
frank26080115	0:bf7b9fba3924	53	// Tx buffer
frank26080115	0:bf7b9fba3924	54	uint8_t Tx_Buf[BUFFER_SIZE];
frank26080115	0:bf7b9fba3924	55
frank26080115	0:bf7b9fba3924	56	// Rx buffer
frank26080115	0:bf7b9fba3924	57	uint8_t Rx_Buf[BUFFER_SIZE];
frank26080115	0:bf7b9fba3924	58
frank26080115	0:bf7b9fba3924	59	/************************ PRIVATE FUNCTIONS ***********************/
frank26080115	0:bf7b9fba3924	60	void print_menu(void);
frank26080115	0:bf7b9fba3924	61	void Buffer_Init(void);
frank26080115	0:bf7b9fba3924	62	void Error_Loop(void);
frank26080115	0:bf7b9fba3924	63	void Buffer_Verify(void);
frank26080115	0:bf7b9fba3924	64
frank26080115	0:bf7b9fba3924	65	/-------------------------PRIVATE FUNCTIONS------------------------------/
frank26080115	0:bf7b9fba3924	66	/*******************************************************************//
frank26080115	0:bf7b9fba3924	67	* @brief Initialize buffer
frank26080115	0:bf7b9fba3924	68	* @param[in] None
frank26080115	0:bf7b9fba3924	69	* @return None
frank26080115	0:bf7b9fba3924	70	**********************************************************************/
frank26080115	0:bf7b9fba3924	71	void Buffer_Init(void)
frank26080115	0:bf7b9fba3924	72	{
frank26080115	0:bf7b9fba3924	73	uint8_t i;
frank26080115	0:bf7b9fba3924	74
frank26080115	0:bf7b9fba3924	75	for (i = 0; i < BUFFER_SIZE; i++) {
frank26080115	0:bf7b9fba3924	76	Tx_Buf[i] = i;
frank26080115	0:bf7b9fba3924	77	Rx_Buf[i] = 0;
frank26080115	0:bf7b9fba3924	78	}
frank26080115	0:bf7b9fba3924	79	}
frank26080115	0:bf7b9fba3924	80
frank26080115	0:bf7b9fba3924	81	/*******************************************************************//
frank26080115	0:bf7b9fba3924	82	* @brief Error Loop (called by Buffer_Verify() if any error)
frank26080115	0:bf7b9fba3924	83	* @param[in] none
frank26080115	0:bf7b9fba3924	84	* @return None
frank26080115	0:bf7b9fba3924	85	**********************************************************************/
frank26080115	0:bf7b9fba3924	86	void Error_Loop(void)
frank26080115	0:bf7b9fba3924	87	{
frank26080115	0:bf7b9fba3924	88	/* Loop forever */
frank26080115	0:bf7b9fba3924	89	while (1);
frank26080115	0:bf7b9fba3924	90	}
frank26080115	0:bf7b9fba3924	91
frank26080115	0:bf7b9fba3924	92
frank26080115	0:bf7b9fba3924	93	/*******************************************************************//
frank26080115	0:bf7b9fba3924	94	* @brief Verify buffer
frank26080115	0:bf7b9fba3924	95	* @param[in] none
frank26080115	0:bf7b9fba3924	96	* @return None
frank26080115	0:bf7b9fba3924	97	**********************************************************************/
frank26080115	0:bf7b9fba3924	98	void Buffer_Verify(void)
frank26080115	0:bf7b9fba3924	99	{
frank26080115	0:bf7b9fba3924	100	uint8_t i;
frank26080115	0:bf7b9fba3924	101	uint8_t src_addr = (uint8_t ) &Tx_Buf[0];
frank26080115	0:bf7b9fba3924	102	uint8_t dest_addr = (uint8_t ) &Rx_Buf[0];
frank26080115	0:bf7b9fba3924	103
frank26080115	0:bf7b9fba3924	104	for ( i = 0; i < BUFFER_SIZE; i++ )
frank26080115	0:bf7b9fba3924	105	{
frank26080115	0:bf7b9fba3924	106	if ( src_addr++ != dest_addr++ )
frank26080115	0:bf7b9fba3924	107	{
frank26080115	0:bf7b9fba3924	108	_DBG_("Verify error");
frank26080115	0:bf7b9fba3924	109	/* Call Error Loop */
frank26080115	0:bf7b9fba3924	110	Error_Loop();
frank26080115	0:bf7b9fba3924	111	}
frank26080115	0:bf7b9fba3924	112	}
frank26080115	0:bf7b9fba3924	113	}
frank26080115	0:bf7b9fba3924	114
frank26080115	0:bf7b9fba3924	115
frank26080115	0:bf7b9fba3924	116	/*******************************************************************//
frank26080115	0:bf7b9fba3924	117	* @brief Print Welcome menu
frank26080115	0:bf7b9fba3924	118	* @param[in] none
frank26080115	0:bf7b9fba3924	119	* @return None
frank26080115	0:bf7b9fba3924	120	**********************************************************************/
frank26080115	0:bf7b9fba3924	121	void print_menu(void)
frank26080115	0:bf7b9fba3924	122	{
frank26080115	0:bf7b9fba3924	123	_DBG(menu1);
frank26080115	0:bf7b9fba3924	124	}
frank26080115	0:bf7b9fba3924	125
frank26080115	0:bf7b9fba3924	126	/-------------------------MAIN FUNCTION------------------------------/
frank26080115	0:bf7b9fba3924	127	/*******************************************************************//
frank26080115	0:bf7b9fba3924	128	* @brief c_entry: Main SSP program body
frank26080115	0:bf7b9fba3924	129	* @param[in] None
frank26080115	0:bf7b9fba3924	130	* @return int
frank26080115	0:bf7b9fba3924	131	**********************************************************************/
frank26080115	0:bf7b9fba3924	132	int c_entry(void)
frank26080115	0:bf7b9fba3924	133	{
frank26080115	0:bf7b9fba3924	134	PINSEL_CFG_Type PinCfg;
frank26080115	0:bf7b9fba3924	135	SSP_DATA_SETUP_Type xferConfig;
frank26080115	0:bf7b9fba3924	136
frank26080115	0:bf7b9fba3924	137	/*
frank26080115	0:bf7b9fba3924	138	* Initialize SPI pin connect
frank26080115	0:bf7b9fba3924	139	* P0.15 - SCK;
frank26080115	0:bf7b9fba3924	140	* P0.16 - SSEL
frank26080115	0:bf7b9fba3924	141	* P0.17 - MISO
frank26080115	0:bf7b9fba3924	142	* P0.18 - MOSI
frank26080115	0:bf7b9fba3924	143	*/
frank26080115	0:bf7b9fba3924	144	PinCfg.Funcnum = 2;
frank26080115	0:bf7b9fba3924	145	PinCfg.OpenDrain = 0;
frank26080115	0:bf7b9fba3924	146	PinCfg.Pinmode = 0;
frank26080115	0:bf7b9fba3924	147	PinCfg.Portnum = 0;
frank26080115	0:bf7b9fba3924	148	PinCfg.Pinnum = 15;
frank26080115	0:bf7b9fba3924	149	PINSEL_ConfigPin(&PinCfg);
frank26080115	0:bf7b9fba3924	150	PinCfg.Pinnum = 17;
frank26080115	0:bf7b9fba3924	151	PINSEL_ConfigPin(&PinCfg);
frank26080115	0:bf7b9fba3924	152	PinCfg.Pinnum = 18;
frank26080115	0:bf7b9fba3924	153	PINSEL_ConfigPin(&PinCfg);
frank26080115	0:bf7b9fba3924	154	PinCfg.Pinnum = 16;
frank26080115	0:bf7b9fba3924	155	PINSEL_ConfigPin(&PinCfg);
frank26080115	0:bf7b9fba3924	156
frank26080115	0:bf7b9fba3924	157	/* Initialize debug via UART0
frank26080115	0:bf7b9fba3924	158	* 115200bps
frank26080115	0:bf7b9fba3924	159	* 8 data bit
frank26080115	0:bf7b9fba3924	160	* No parity
frank26080115	0:bf7b9fba3924	161	* 1 stop bit
frank26080115	0:bf7b9fba3924	162	* No flow control
frank26080115	0:bf7b9fba3924	163	*/
frank26080115	0:bf7b9fba3924	164	debug_frmwrk_init();
frank26080115	0:bf7b9fba3924	165
frank26080115	0:bf7b9fba3924	166	// print welcome screen
frank26080115	0:bf7b9fba3924	167	print_menu();
frank26080115	0:bf7b9fba3924	168
frank26080115	0:bf7b9fba3924	169	// initialize SSP configuration structure to default
frank26080115	0:bf7b9fba3924	170	SSP_ConfigStructInit(&SSP_ConfigStruct);
frank26080115	0:bf7b9fba3924	171	// Initialize SSP peripheral with parameter given in structure above
frank26080115	0:bf7b9fba3924	172	SSP_Init(LPC_SSP0, &SSP_ConfigStruct);
frank26080115	0:bf7b9fba3924	173
frank26080115	0:bf7b9fba3924	174	// Enable SSP peripheral
frank26080115	0:bf7b9fba3924	175	SSP_Cmd(LPC_SSP0, ENABLE);
frank26080115	0:bf7b9fba3924	176
frank26080115	0:bf7b9fba3924	177	_DBG_("Press '1' to start transfer...");
frank26080115	0:bf7b9fba3924	178	while (_DG != '1');
frank26080115	0:bf7b9fba3924	179
frank26080115	0:bf7b9fba3924	180	/* Initialize Buffer */
frank26080115	0:bf7b9fba3924	181	_DBG_("Init buffer");
frank26080115	0:bf7b9fba3924	182	Buffer_Init();
frank26080115	0:bf7b9fba3924	183
frank26080115	0:bf7b9fba3924	184	_DBG_("Start transfer...");
frank26080115	0:bf7b9fba3924	185
frank26080115	0:bf7b9fba3924	186	xferConfig.tx_data = Tx_Buf;
frank26080115	0:bf7b9fba3924	187	xferConfig.rx_data = Rx_Buf;
frank26080115	0:bf7b9fba3924	188	xferConfig.length = BUFFER_SIZE;
frank26080115	0:bf7b9fba3924	189	SSP_ReadWrite(LPC_SSP0, &xferConfig, SSP_TRANSFER_POLLING);
frank26080115	0:bf7b9fba3924	190
frank26080115	0:bf7b9fba3924	191	// Verify buffer after transferring
frank26080115	0:bf7b9fba3924	192	Buffer_Verify();
frank26080115	0:bf7b9fba3924	193	_DBG_("Verify complete!");
frank26080115	0:bf7b9fba3924	194
frank26080115	0:bf7b9fba3924	195	/* Loop forever */
frank26080115	0:bf7b9fba3924	196	while(1);
frank26080115	0:bf7b9fba3924	197	return 1;
frank26080115	0:bf7b9fba3924	198	}
frank26080115	0:bf7b9fba3924	199
frank26080115	0:bf7b9fba3924	200	/* With ARM and GHS toolsets, the entry point is main() - this will
frank26080115	0:bf7b9fba3924	201	allow the linker to generate wrapper code to setup stacks, allocate
frank26080115	0:bf7b9fba3924	202	heap area, and initialize and copy code and data segments. For GNU
frank26080115	0:bf7b9fba3924	203	toolsets, the entry point is through __start() in the crt0_gnu.asm
frank26080115	0:bf7b9fba3924	204	file, and that startup code will setup stacks and data */
frank26080115	0:bf7b9fba3924	205	int main(void)
frank26080115	0:bf7b9fba3924	206	{
frank26080115	0:bf7b9fba3924	207	return c_entry();
frank26080115	0:bf7b9fba3924	208	}
frank26080115	0:bf7b9fba3924	209
frank26080115	0:bf7b9fba3924	210
frank26080115	0:bf7b9fba3924	211	#ifdef DEBUG
frank26080115	0:bf7b9fba3924	212	/*******************************************************************************
frank26080115	0:bf7b9fba3924	213	* @brief Reports the name of the source file and the source line number
frank26080115	0:bf7b9fba3924	214	* where the CHECK_PARAM error has occurred.
frank26080115	0:bf7b9fba3924	215	* @param[in] file Pointer to the source file name
frank26080115	0:bf7b9fba3924	216	* @param[in] line assert_param error line source number
frank26080115	0:bf7b9fba3924	217	* @return None
frank26080115	0:bf7b9fba3924	218	*******************************************************************************/
frank26080115	0:bf7b9fba3924	219	void check_failed(uint8_t *file, uint32_t line)
frank26080115	0:bf7b9fba3924	220	{
frank26080115	0:bf7b9fba3924	221	/* User can add his own implementation to report the file name and line number,
frank26080115	0:bf7b9fba3924	222	ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
frank26080115	0:bf7b9fba3924	223
frank26080115	0:bf7b9fba3924	224	/* Infinite loop */
frank26080115	0:bf7b9fba3924	225	while(1);
frank26080115	0:bf7b9fba3924	226	}
frank26080115	0:bf7b9fba3924	227	#endif

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

SSP/Master/ssp_master.c@0:bf7b9fba3924, 2011-03-20 (annotated)

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