xeye_ atsu
LINKED LIST TEST on mbed
Diff: main.cpp
- Revision:
- 0:e8bfffbb3ab6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Feb 26 03:55:12 2011 +0000
@@ -0,0 +1,302 @@
+#include "mbed.h"
+/***********************************************************************//**
+ * @file link_list.c
+ * @purpose This example used to test GPDMA Link list function
+ * @version 1.0
+ * @date 16. July. 2010
+ * @author NXP MCU SW Application Team
+ *---------------------------------------------------------------------
+ * Software that is described herein is for illustrative purposes only
+ * which provides customers with programming information regarding the
+ * products. This software is supplied "AS IS" without any warranties.
+ * NXP Semiconductors assumes no responsibility or liability for the
+ * use of the software, conveys no license or title under any patent,
+ * copyright, or mask work right to the product. NXP Semiconductors
+ * reserves the right to make changes in the software without
+ * notification. NXP Semiconductors also make no representation or
+ * warranty that such application will be suitable for the specified
+ * use without further testing or modification.
+ **********************************************************************/
+#include "lpc17xx_gpdma.h"
+#include "lpc17xx_libcfg.h"
+#include "debug_frmwrk.h"
+
+/* Example group ----------------------------------------------------------- */
+/** @defgroup GPDMA_Link_list Link_list
+ * @ingroup GPDMA_Examples
+ * @{
+ */
+
+/************************** PRIVATE DEFINTIONS*************************/
+/** DMA transfer size */
+#define DMA_SIZE 32
+
+/************************** PRIVATE VARIABLES *************************/
+uint8_t menu[]=
+ "********************************************************************************\n\r"
+ "Hello NXP Semiconductors \n\r"
+ "GPDMA demo \n\r"
+ "\t - MCU: LPC17xx \n\r"
+ "\t - Core: ARM CORTEX-M3 \n\r"
+ "\t - Communicate via: UART0 - 115200 bps \n\r"
+ "This example used to test GPDMA link list function \n\r"
+ "********************************************************************************\n\r";
+uint8_t menu2[] = "Demo terminated! \n\r";
+uint8_t err_menu[] = "Buffer Check fail!\n\r";
+uint8_t compl_menu[] = "Buffer Check success!\n\r";
+
+uint32_t DMADest_Buffer[DMA_SIZE];
+
+#if (defined (__ICCARM__))
+#pragma location = "data_init"
+uint32_t const DMASrc_Buffer1[DMA_SIZE/2] =
+#else
+uint32_t DMASrc_Buffer1[DMA_SIZE/2] __attribute__((at(0x2007C000))) =
+#endif
+{
+ 0x01020304,0x05060708,0x090A0B0C,0x0D0E0F10,
+ 0x11121314,0x15161718,0x191A1B1C,0x1D1E1F20,
+ 0x21222324,0x25262728,0x292A2B2C,0x2D2E2F30,
+ 0x31323334,0x35363738,0x393A3B3C,0x3D3E3F40
+};
+
+// Terminal Counter flag for Channel 0
+__IO uint32_t Channel0_TC;
+
+// Error Counter flag for Channel 0
+__IO uint32_t Channel0_Err;
+
+#if (defined (__ICCARM__))
+#pragma location = "data_init"
+uint32_t const DMASrc_Buffer2[DMA_SIZE/2] =
+#else
+uint32_t DMASrc_Buffer2[DMA_SIZE/2] __attribute__((at(0x2007C200)))=
+#endif
+{
+ 0x41424344,0x45464748,0x494A4B4C,0x4D4E4F50,
+ 0x51525354,0x55565758,0x595A5B5C,0x5D5E5F60,
+ 0x61626364,0x65666768,0x696A6B6C,0x6D6E6F70,
+ 0x71727374,0x75767778,0x797A7B7C,0x7D7E7F80
+};
+
+/*-------------------------MAIN FUNCTION------------------------------*/
+extern "C" void DMA_IRQHandler (void);
+
+void print_menu(void);
+void Error_Loop(void);
+
+/*----------------- INTERRUPT SERVICE ROUTINES --------------------------*/
+/*********************************************************************//**
+ * @brief GPDMA interrupt handler sub-routine
+ * @param[in] None
+ * @return None
+ **********************************************************************/
+void DMA_IRQHandler (void)
+{
+ printf("hogehogeIRQ \r\n");
+ // check GPDMA interrupt on channel 0
+ if (GPDMA_IntGetStatus(GPDMA_STAT_INT, 0)){ //check interrupt status on channel 0
+ // Check counter terminal status
+ if(GPDMA_IntGetStatus(GPDMA_STAT_INTTC, 0)){
+ // Clear terminate counter Interrupt pending
+ GPDMA_ClearIntPending (GPDMA_STATCLR_INTTC, 0);
+ Channel0_TC++;
+ }
+ if (GPDMA_IntGetStatus(GPDMA_STAT_INTERR, 0)){
+ // Clear error counter Interrupt pending
+ GPDMA_ClearIntPending (GPDMA_STATCLR_INTERR, 0);
+ Channel0_Err++;
+ }
+ }
+}
+
+/*-------------------------PRIVATE FUNCTIONS-----------------------------*/
+/*********************************************************************//**
+ * @brief Print Welcome menu
+ * @param[in] none
+ * @return None
+ **********************************************************************/
+void print_menu(void)
+{
+ //_DBG(menu);
+}
+
+
+/*********************************************************************//**
+ * @brief Verify buffer
+ * @param[in] none
+ * @return None
+ **********************************************************************/
+void Buffer_Verify(void)
+{
+ uint8_t i;
+ uint32_t *src_addr = (uint32_t *)DMASrc_Buffer1;
+ uint32_t *dest_addr = (uint32_t *)DMADest_Buffer;
+
+ for ( i = 0; i < DMA_SIZE/2; i++ )
+ {
+ if ( *src_addr++ != *dest_addr++ )
+ {
+ /* Call Error Loop */
+ Error_Loop();
+ }
+ }
+ src_addr = (uint32_t *)DMASrc_Buffer2;
+ for ( i = 0; i < DMA_SIZE/2; i++ )
+ {
+ if ( *src_addr++ != *dest_addr++ )
+ {
+ /* Call Error Loop */
+ Error_Loop();
+ }
+ }
+}
+
+
+/*********************************************************************//**
+ * @brief Error Loop (called by Buffer_Verify() if any error)
+ * @param[in] none
+ * @return None
+ **********************************************************************/
+void Error_Loop(void)
+{
+ //_DBG(err_menu);
+
+ /* Loop forever */
+ while (1);
+}
+
+
+/*-------------------------MAIN FUNCTION--------------------------------*/
+/*********************************************************************//**
+ * @brief c_entry: Main program body
+ * @param[in] None
+ * @return int
+ **********************************************************************/
+int c_entry(void)
+{
+ printf("start! \r\n");
+ GPDMA_Channel_CFG_Type GPDMACfg;
+ GPDMA_LLI_Type DMA_LLI_Struct[2];
+
+ /* Initialize debug via UART0
+ * 115200bps
+ * 8 data bit
+ * No parity
+ * 1 stop bit
+ * No flow control
+ */
+ //debug_frmwrk_init();
+
+ // print welcome screen
+ //print_menu();
+ printf("Go! \r\n");
+ /* GPDMA block section -------------------------------------------- */
+ /* Disable GPDMA interrupt */
+ NVIC_DisableIRQ(DMA_IRQn);
+ /* preemption = 1, sub-priority = 1 */
+ NVIC_SetPriority(DMA_IRQn, ((0x01<<3)|0x01));
+
+ /* Initialize GPDMA controller */
+ GPDMA_Init();
+
+ /* Init GPDMA link list */
+ DMA_LLI_Struct[0].SrcAddr = (uint32_t)&DMASrc_Buffer1;
+ DMA_LLI_Struct[0].DstAddr = (uint32_t)&DMADest_Buffer;
+ DMA_LLI_Struct[0].NextLLI = (uint32_t)&DMA_LLI_Struct[1];
+ DMA_LLI_Struct[0].Control = (DMA_SIZE/2)
+ | (2<<18) //source width 32 bit
+ | (2<<21) //dest. width 32 bit
+ | (1<<26) //source increment
+ | (1<<27)
+ | (1<<31)
+ ;
+ DMA_LLI_Struct[1].SrcAddr = (uint32_t)&DMASrc_Buffer2;
+ DMA_LLI_Struct[1].DstAddr = ((uint32_t)&DMADest_Buffer) + (DMA_SIZE/2)*4;
+ DMA_LLI_Struct[1].NextLLI = (uint32_t)&DMA_LLI_Struct[0];
+ DMA_LLI_Struct[1].Control = (DMA_SIZE/2)
+ | (2<<18) //source width 32 bit
+ | (2<<21) //dest. width 32 bit
+ | (1<<26) //source increment
+ | (1<<27)
+ | (1<<31)
+ ;
+
+ // Setup GPDMA channel --------------------------------
+ // channel 0
+ GPDMACfg.ChannelNum = 0;
+ // Source memory
+ GPDMACfg.SrcMemAddr = (uint32_t)DMASrc_Buffer1;
+ // Destination memory
+ GPDMACfg.DstMemAddr = (uint32_t)DMADest_Buffer;
+ // Transfer size
+ GPDMACfg.TransferSize = DMA_SIZE;
+ // Transfer width
+ GPDMACfg.TransferWidth = GPDMA_WIDTH_WORD;
+ // Transfer type
+ GPDMACfg.TransferType = GPDMA_TRANSFERTYPE_M2M;
+ // Source connection - unused
+ GPDMACfg.SrcConn = 0;
+ // Destination connection - unused
+ GPDMACfg.DstConn = 0;
+ // Linker List Item
+ GPDMACfg.DMALLI = (uint32_t)&DMA_LLI_Struct[0];
+ // Setup channel with given parameter
+ GPDMA_Setup(&GPDMACfg);
+
+ /* Reset terminal counter */
+ Channel0_TC = 0;
+ /* Reset Error counter */
+ Channel0_Err = 0;
+
+ //_DBG_("Start transfer...");
+
+ // Enable GPDMA channel 0
+ GPDMA_ChannelCmd(0, ENABLE);
+
+ /* Enable GPDMA interrupt */
+ NVIC_EnableIRQ(DMA_IRQn);
+
+ /* Wait for GPDMA processing complete */
+ while ((Channel0_TC == 0) && (Channel0_Err == 0));
+
+ /* Verify buffer */
+ Buffer_Verify();
+
+ //_DBG(compl_menu);
+ printf("softcontrol end\r\n");
+ /* Loop forever */
+ while(1);
+ return 1;
+}
+
+/* With ARM and GHS toolsets, the entry point is main() - this will
+ allow the linker to generate wrapper code to setup stacks, allocate
+ heap area, and initialize and copy code and data segments. For GNU
+ toolsets, the entry point is through __start() in the crt0_gnu.asm
+ file, and that startup code will setup stacks and data */
+int main(void) {
+ return c_entry();
+}
+
+#ifdef DEBUG
+/*******************************************************************************
+ * @brief Reports the name of the source file and the source line number
+ * where the CHECK_PARAM error has occurred.
+ * @param[in] file Pointer to the source file name
+ * @param[in] line assert_param error line source number
+ * @return None
+ *******************************************************************************/
+void check_failed(uint8_t *file, uint32_t line) {
+ /* User can add his own implementation to report the file name and line number,
+ ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
+
+ /* Infinite loop */
+ while (1)
+ ;
+}
+#endif
+
+/*
+ * @}
+ */