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

Users » frank26080115 » Code » LPC1700CMSIS_Examples

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

GPDMA/Ram_2_Ram_Test/gpdma_r2r_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 gpdma_m2m_test.c
frank26080115	0:bf7b9fba3924	3	* @purpose This example used to test GPDMA Ram-to-Ram 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_gpdma.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
frank26080115	0:bf7b9fba3924	24	/* Example group ----------------------------------------------------------- */
frank26080115	0:bf7b9fba3924	25	/** @defgroup GPDMA_Ram_2_Ram_Test Ram_2_Ram_Test
frank26080115	0:bf7b9fba3924	26	* @ingroup GPDMA_Examples
frank26080115	0:bf7b9fba3924	27	* @{
frank26080115	0:bf7b9fba3924	28	*/
frank26080115	0:bf7b9fba3924	29
frank26080115	0:bf7b9fba3924	30	/************************ PRIVATE MACROS ***********************/
frank26080115	0:bf7b9fba3924	31	/** DMA transfer size */
frank26080115	0:bf7b9fba3924	32	#define DMA_SIZE 0x100UL
frank26080115	0:bf7b9fba3924	33	/** DMA Source Address is AHBRAM1_BASE that used for USB RAM purpose, but
frank26080115	0:bf7b9fba3924	34	* it is not used in this example, so this memory section can be used for general purpose
frank26080115	0:bf7b9fba3924	35	* memory
frank26080115	0:bf7b9fba3924	36	*/
frank26080115	0:bf7b9fba3924	37	#define DMA_SRC LPC_AHBRAM1_BASE
frank26080115	0:bf7b9fba3924	38	/** DMA Source Address is (AHBRAM1_BASE + DMA_SIZE) that used for USB RAM purpose, but
frank26080115	0:bf7b9fba3924	39	* it is not used in this example, so this memory section can be used for general purpose
frank26080115	0:bf7b9fba3924	40	* memory
frank26080115	0:bf7b9fba3924	41	*/
frank26080115	0:bf7b9fba3924	42	#define DMA_DST (DMA_SRC+DMA_SIZE)
frank26080115	0:bf7b9fba3924	43
frank26080115	0:bf7b9fba3924	44
frank26080115	0:bf7b9fba3924	45	/************************ PRIVATE VARIABLES ***********************/
frank26080115	0:bf7b9fba3924	46	uint8_t menu1[] =
frank26080115	0:bf7b9fba3924	47	"********************************************************************************\n\r"
frank26080115	0:bf7b9fba3924	48	"Hello NXP Semiconductors \n\r"
frank26080115	0:bf7b9fba3924	49	"GPDMA demo \n\r"
frank26080115	0:bf7b9fba3924	50	"\t - MCU: LPC17xx \n\r"
frank26080115	0:bf7b9fba3924	51	"\t - Core: ARM Cortex-M3 \n\r"
frank26080115	0:bf7b9fba3924	52	"\t - Communicate via: UART0 - 115200bps \n\r"
frank26080115	0:bf7b9fba3924	53	" This example will transfer 2 blocks of data from memory boundary \n\r"
frank26080115	0:bf7b9fba3924	54	" to the other memory boundary on RAM using GPDMA module with interrupt \n\r"
frank26080115	0:bf7b9fba3924	55	"********************************************************************************\n\r";
frank26080115	0:bf7b9fba3924	56	uint8_t menu2[] = "Demo terminated! \n\r";
frank26080115	0:bf7b9fba3924	57	uint8_t err_menu[] = "Buffer Check fail!";
frank26080115	0:bf7b9fba3924	58	uint8_t compl_menu[] = "Buffer Check success!";
frank26080115	0:bf7b9fba3924	59
frank26080115	0:bf7b9fba3924	60	// Terminal Counter flag for Channel 0
frank26080115	0:bf7b9fba3924	61	__IO uint32_t Channel0_TC;
frank26080115	0:bf7b9fba3924	62
frank26080115	0:bf7b9fba3924	63	// Error Counter flag for Channel 0
frank26080115	0:bf7b9fba3924	64	__IO uint32_t Channel0_Err;
frank26080115	0:bf7b9fba3924	65
frank26080115	0:bf7b9fba3924	66
frank26080115	0:bf7b9fba3924	67	/************************ PRIVATE FUNCTIONS ***********************/
frank26080115	0:bf7b9fba3924	68	void DMA_IRQHandler (void);
frank26080115	0:bf7b9fba3924	69
frank26080115	0:bf7b9fba3924	70	void print_menu(void);
frank26080115	0:bf7b9fba3924	71	void Buffer_Init(void);
frank26080115	0:bf7b9fba3924	72	void Error_Loop(void);
frank26080115	0:bf7b9fba3924	73
frank26080115	0:bf7b9fba3924	74	/----------------- INTERRUPT SERVICE ROUTINES --------------------------/
frank26080115	0:bf7b9fba3924	75	/*******************************************************************//
frank26080115	0:bf7b9fba3924	76	* @brief GPDMA interrupt handler sub-routine
frank26080115	0:bf7b9fba3924	77	* @param[in] None
frank26080115	0:bf7b9fba3924	78	* @return None
frank26080115	0:bf7b9fba3924	79	**********************************************************************/
frank26080115	0:bf7b9fba3924	80	void DMA_IRQHandler (void)
frank26080115	0:bf7b9fba3924	81	{
frank26080115	0:bf7b9fba3924	82	// check GPDMA interrupt on channel 0
frank26080115	0:bf7b9fba3924	83	if (GPDMA_IntGetStatus(GPDMA_STAT_INT, 0)){ //check interrupt status on channel 0
frank26080115	0:bf7b9fba3924	84	// Check counter terminal status
frank26080115	0:bf7b9fba3924	85	if(GPDMA_IntGetStatus(GPDMA_STAT_INTTC, 0)){
frank26080115	0:bf7b9fba3924	86	// Clear terminate counter Interrupt pending
frank26080115	0:bf7b9fba3924	87	GPDMA_ClearIntPending (GPDMA_STATCLR_INTTC, 0);
frank26080115	0:bf7b9fba3924	88	Channel0_TC++;
frank26080115	0:bf7b9fba3924	89	}
frank26080115	0:bf7b9fba3924	90	if (GPDMA_IntGetStatus(GPDMA_STAT_INTERR, 0)){
frank26080115	0:bf7b9fba3924	91	// Clear error counter Interrupt pending
frank26080115	0:bf7b9fba3924	92	GPDMA_ClearIntPending (GPDMA_STATCLR_INTERR, 0);
frank26080115	0:bf7b9fba3924	93	Channel0_Err++;
frank26080115	0:bf7b9fba3924	94	}
frank26080115	0:bf7b9fba3924	95	}
frank26080115	0:bf7b9fba3924	96	}
frank26080115	0:bf7b9fba3924	97
frank26080115	0:bf7b9fba3924	98	/-------------------------PRIVATE FUNCTIONS-----------------------------/
frank26080115	0:bf7b9fba3924	99	/*******************************************************************//
frank26080115	0:bf7b9fba3924	100	* @brief Print Welcome menu
frank26080115	0:bf7b9fba3924	101	* @param[in] none
frank26080115	0:bf7b9fba3924	102	* @return None
frank26080115	0:bf7b9fba3924	103	**********************************************************************/
frank26080115	0:bf7b9fba3924	104	void print_menu(void)
frank26080115	0:bf7b9fba3924	105	{
frank26080115	0:bf7b9fba3924	106	_DBG(menu1);
frank26080115	0:bf7b9fba3924	107	}
frank26080115	0:bf7b9fba3924	108
frank26080115	0:bf7b9fba3924	109	/*******************************************************************//
frank26080115	0:bf7b9fba3924	110	* @brief Initialize buffer
frank26080115	0:bf7b9fba3924	111	* @param[in] none
frank26080115	0:bf7b9fba3924	112	* @return None
frank26080115	0:bf7b9fba3924	113	**********************************************************************/
frank26080115	0:bf7b9fba3924	114	void Buffer_Init(void)
frank26080115	0:bf7b9fba3924	115	{
frank26080115	0:bf7b9fba3924	116	uint8_t i;
frank26080115	0:bf7b9fba3924	117	uint32_t src_addr = (uint32_t )DMA_SRC;
frank26080115	0:bf7b9fba3924	118	uint32_t dest_addr = (uint32_t )DMA_DST;
frank26080115	0:bf7b9fba3924	119
frank26080115	0:bf7b9fba3924	120	for ( i = 0; i < DMA_SIZE/4; i++ )
frank26080115	0:bf7b9fba3924	121	{
frank26080115	0:bf7b9fba3924	122	*src_addr++ = i;
frank26080115	0:bf7b9fba3924	123	*dest_addr++ = 0;
frank26080115	0:bf7b9fba3924	124	}
frank26080115	0:bf7b9fba3924	125	}
frank26080115	0:bf7b9fba3924	126
frank26080115	0:bf7b9fba3924	127
frank26080115	0:bf7b9fba3924	128	/*******************************************************************//
frank26080115	0:bf7b9fba3924	129	* @brief Verify buffer
frank26080115	0:bf7b9fba3924	130	* @param[in] none
frank26080115	0:bf7b9fba3924	131	* @return None
frank26080115	0:bf7b9fba3924	132	**********************************************************************/
frank26080115	0:bf7b9fba3924	133	void Buffer_Verify(void)
frank26080115	0:bf7b9fba3924	134	{
frank26080115	0:bf7b9fba3924	135	uint8_t i;
frank26080115	0:bf7b9fba3924	136	uint32_t src_addr = (uint32_t )DMA_SRC;
frank26080115	0:bf7b9fba3924	137	uint32_t dest_addr = (uint32_t )DMA_DST;
frank26080115	0:bf7b9fba3924	138
frank26080115	0:bf7b9fba3924	139	for ( i = 0; i < DMA_SIZE/4; i++ )
frank26080115	0:bf7b9fba3924	140	{
frank26080115	0:bf7b9fba3924	141	if ( src_addr++ != dest_addr++ )
frank26080115	0:bf7b9fba3924	142	{
frank26080115	0:bf7b9fba3924	143	/* Call Error Loop */
frank26080115	0:bf7b9fba3924	144	Error_Loop();
frank26080115	0:bf7b9fba3924	145	}
frank26080115	0:bf7b9fba3924	146	}
frank26080115	0:bf7b9fba3924	147	}
frank26080115	0:bf7b9fba3924	148
frank26080115	0:bf7b9fba3924	149
frank26080115	0:bf7b9fba3924	150	/*******************************************************************//
frank26080115	0:bf7b9fba3924	151	* @brief Error Loop (called by Buffer_Verify() if any error)
frank26080115	0:bf7b9fba3924	152	* @param[in] none
frank26080115	0:bf7b9fba3924	153	* @return None
frank26080115	0:bf7b9fba3924	154	**********************************************************************/
frank26080115	0:bf7b9fba3924	155	void Error_Loop(void)
frank26080115	0:bf7b9fba3924	156	{
frank26080115	0:bf7b9fba3924	157	_DBG(err_menu);
frank26080115	0:bf7b9fba3924	158
frank26080115	0:bf7b9fba3924	159	/* Loop forever */
frank26080115	0:bf7b9fba3924	160	while (1);
frank26080115	0:bf7b9fba3924	161	}
frank26080115	0:bf7b9fba3924	162
frank26080115	0:bf7b9fba3924	163
frank26080115	0:bf7b9fba3924	164	/-------------------------MAIN FUNCTION--------------------------------/
frank26080115	0:bf7b9fba3924	165	/*******************************************************************//
frank26080115	0:bf7b9fba3924	166	* @brief c_entry: Main program body
frank26080115	0:bf7b9fba3924	167	* @param[in] None
frank26080115	0:bf7b9fba3924	168	* @return int
frank26080115	0:bf7b9fba3924	169	**********************************************************************/
frank26080115	0:bf7b9fba3924	170	int c_entry(void)
frank26080115	0:bf7b9fba3924	171	{
frank26080115	0:bf7b9fba3924	172	GPDMA_Channel_CFG_Type GPDMACfg;
frank26080115	0:bf7b9fba3924	173
frank26080115	0:bf7b9fba3924	174	/* Initialize debug via UART0
frank26080115	0:bf7b9fba3924	175	* 115200bps
frank26080115	0:bf7b9fba3924	176	* 8 data bit
frank26080115	0:bf7b9fba3924	177	* No parity
frank26080115	0:bf7b9fba3924	178	* 1 stop bit
frank26080115	0:bf7b9fba3924	179	* No flow control
frank26080115	0:bf7b9fba3924	180	*/
frank26080115	0:bf7b9fba3924	181	debug_frmwrk_init();
frank26080115	0:bf7b9fba3924	182
frank26080115	0:bf7b9fba3924	183	// print welcome screen
frank26080115	0:bf7b9fba3924	184	print_menu();
frank26080115	0:bf7b9fba3924	185
frank26080115	0:bf7b9fba3924	186	/* GPDMA block section -------------------------------------------- */
frank26080115	0:bf7b9fba3924	187	/* Initialize buffer */
frank26080115	0:bf7b9fba3924	188	_DBG_("Initialize Buffer...");
frank26080115	0:bf7b9fba3924	189	Buffer_Init();
frank26080115	0:bf7b9fba3924	190
frank26080115	0:bf7b9fba3924	191	/* Disable GPDMA interrupt */
frank26080115	0:bf7b9fba3924	192	NVIC_DisableIRQ(DMA_IRQn);
frank26080115	0:bf7b9fba3924	193	/* preemption = 1, sub-priority = 1 */
frank26080115	0:bf7b9fba3924	194	NVIC_SetPriority(DMA_IRQn, ((0x01<<3)\|0x01));
frank26080115	0:bf7b9fba3924	195
frank26080115	0:bf7b9fba3924	196	/* Initialize GPDMA controller */
frank26080115	0:bf7b9fba3924	197	GPDMA_Init();
frank26080115	0:bf7b9fba3924	198
frank26080115	0:bf7b9fba3924	199	// Setup GPDMA channel --------------------------------
frank26080115	0:bf7b9fba3924	200	// channel 0
frank26080115	0:bf7b9fba3924	201	GPDMACfg.ChannelNum = 0;
frank26080115	0:bf7b9fba3924	202	// Source memory
frank26080115	0:bf7b9fba3924	203	GPDMACfg.SrcMemAddr = DMA_SRC;
frank26080115	0:bf7b9fba3924	204	// Destination memory
frank26080115	0:bf7b9fba3924	205	GPDMACfg.DstMemAddr = DMA_DST;
frank26080115	0:bf7b9fba3924	206	// Transfer size
frank26080115	0:bf7b9fba3924	207	GPDMACfg.TransferSize = DMA_SIZE;
frank26080115	0:bf7b9fba3924	208	// Transfer width
frank26080115	0:bf7b9fba3924	209	GPDMACfg.TransferWidth = GPDMA_WIDTH_WORD;
frank26080115	0:bf7b9fba3924	210	// Transfer type
frank26080115	0:bf7b9fba3924	211	GPDMACfg.TransferType = GPDMA_TRANSFERTYPE_M2M;
frank26080115	0:bf7b9fba3924	212	// Source connection - unused
frank26080115	0:bf7b9fba3924	213	GPDMACfg.SrcConn = 0;
frank26080115	0:bf7b9fba3924	214	// Destination connection - unused
frank26080115	0:bf7b9fba3924	215	GPDMACfg.DstConn = 0;
frank26080115	0:bf7b9fba3924	216	// Linker List Item - unused
frank26080115	0:bf7b9fba3924	217	GPDMACfg.DMALLI = 0;
frank26080115	0:bf7b9fba3924	218	// Setup channel with given parameter
frank26080115	0:bf7b9fba3924	219	GPDMA_Setup(&GPDMACfg);
frank26080115	0:bf7b9fba3924	220
frank26080115	0:bf7b9fba3924	221	/* Reset terminal counter */
frank26080115	0:bf7b9fba3924	222	Channel0_TC = 0;
frank26080115	0:bf7b9fba3924	223	/* Reset Error counter */
frank26080115	0:bf7b9fba3924	224	Channel0_Err = 0;
frank26080115	0:bf7b9fba3924	225
frank26080115	0:bf7b9fba3924	226	_DBG_("Start transfer...");
frank26080115	0:bf7b9fba3924	227
frank26080115	0:bf7b9fba3924	228	// Enable GPDMA channel 0
frank26080115	0:bf7b9fba3924	229	GPDMA_ChannelCmd(0, ENABLE);
frank26080115	0:bf7b9fba3924	230
frank26080115	0:bf7b9fba3924	231	/* Enable GPDMA interrupt */
frank26080115	0:bf7b9fba3924	232	NVIC_EnableIRQ(DMA_IRQn);
frank26080115	0:bf7b9fba3924	233
frank26080115	0:bf7b9fba3924	234	/* Wait for GPDMA processing complete */
frank26080115	0:bf7b9fba3924	235	while ((Channel0_TC == 0) && (Channel0_Err == 0));
frank26080115	0:bf7b9fba3924	236
frank26080115	0:bf7b9fba3924	237	/* Verify buffer */
frank26080115	0:bf7b9fba3924	238	Buffer_Verify();
frank26080115	0:bf7b9fba3924	239
frank26080115	0:bf7b9fba3924	240	_DBG(compl_menu);
frank26080115	0:bf7b9fba3924	241
frank26080115	0:bf7b9fba3924	242	/* Loop forever */
frank26080115	0:bf7b9fba3924	243	while(1);
frank26080115	0:bf7b9fba3924	244	return 1;
frank26080115	0:bf7b9fba3924	245	}
frank26080115	0:bf7b9fba3924	246
frank26080115	0:bf7b9fba3924	247	/* With ARM and GHS toolsets, the entry point is main() - this will
frank26080115	0:bf7b9fba3924	248	allow the linker to generate wrapper code to setup stacks, allocate
frank26080115	0:bf7b9fba3924	249	heap area, and initialize and copy code and data segments. For GNU
frank26080115	0:bf7b9fba3924	250	toolsets, the entry point is through __start() in the crt0_gnu.asm
frank26080115	0:bf7b9fba3924	251	file, and that startup code will setup stacks and data */
frank26080115	0:bf7b9fba3924	252	int main(void)
frank26080115	0:bf7b9fba3924	253	{
frank26080115	0:bf7b9fba3924	254	return c_entry();
frank26080115	0:bf7b9fba3924	255	}
frank26080115	0:bf7b9fba3924	256
frank26080115	0:bf7b9fba3924	257
frank26080115	0:bf7b9fba3924	258	#ifdef DEBUG
frank26080115	0:bf7b9fba3924	259	/*******************************************************************************
frank26080115	0:bf7b9fba3924	260	* @brief Reports the name of the source file and the source line number
frank26080115	0:bf7b9fba3924	261	* where the CHECK_PARAM error has occurred.
frank26080115	0:bf7b9fba3924	262	* @param[in] file Pointer to the source file name
frank26080115	0:bf7b9fba3924	263	* @param[in] line assert_param error line source number
frank26080115	0:bf7b9fba3924	264	* @return None
frank26080115	0:bf7b9fba3924	265	*******************************************************************************/
frank26080115	0:bf7b9fba3924	266	void check_failed(uint8_t *file, uint32_t line)
frank26080115	0:bf7b9fba3924	267	{
frank26080115	0:bf7b9fba3924	268	/* User can add his own implementation to report the file name and line number,
frank26080115	0:bf7b9fba3924	269	ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
frank26080115	0:bf7b9fba3924	270
frank26080115	0:bf7b9fba3924	271	/* Infinite loop */
frank26080115	0:bf7b9fba3924	272	while(1);
frank26080115	0:bf7b9fba3924	273	}
frank26080115	0:bf7b9fba3924	274	#endif
frank26080115	0:bf7b9fba3924	275	/*
frank26080115	0:bf7b9fba3924	276	* @}
frank26080115	0:bf7b9fba3924	277	*/

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

GPDMA/Ram_2_Ram_Test/gpdma_r2r_test.c@0:bf7b9fba3924, 2011-03-20 (annotated)

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