/*********************************************************************//**
* @brief c_entry: Main program body
* @param[in] None
* @return int
**********************************************************************/
int c_entry (void)
{
PINSEL_CFG_Type PinCfg;
EXTI_InitTypeDef EXTICfg;
/* Initialize debug via UART0
* – 115200bps
* – 8 data bit
* – No parity
* – 1 stop bit
* – No flow control
*/
debug_frmwrk_init();
// print welcome screen
print_menu();
/* Initialize LEDs
* - If using MCB1700 board:
* LEDs: P1.28 and P1.29 are available
* - If using IAR1700 board:
* LEDs: LED1(P1.25) and LED2(P0.4) are available
* Turn off LEDs after initialize
*/
InitLED();
/* Initialize EXT pin and registers
* - If using MCB1700 board: EXTI0 is configured
* - If using IAR1700 board: EXTI2 is configured
*/
#ifdef MCB_LPC_1768
/* P2.10 as /EINT0 */
PinCfg.Funcnum = 1;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Pinnum = 10;
PinCfg.Portnum = 2;
PINSEL_ConfigPin(&PinCfg);
#elif defined (IAR_LPC_1768)
/* P2.12 as /EINT2 */
PinCfg.Funcnum = 1;
PinCfg.OpenDrain = 0;
PinCfg.Pinmode = 0;
PinCfg.Pinnum = 12;
PinCfg.Portnum = 2;
PINSEL_ConfigPin(&PinCfg);
#endif
EXTI_Init();
EXTICfg.EXTI_Line = _EXTINT;
/* edge sensitive */
EXTICfg.EXTI_Mode = EXTI_MODE_EDGE_SENSITIVE;
EXTICfg.EXTI_polarity = EXTI_POLARITY_LOW_ACTIVE_OR_FALLING_EDGE;
EXTI_ClearEXTIFlag(_EXTINT);
EXTI_Config(&EXTICfg);
NVIC_SetPriorityGrouping(4);
NVIC_SetPriority(_EXT_IRQ, 0);
NVIC_EnableIRQ(_EXT_IRQ);
_DBG_("First LED is blinking in normal mode...\n\r" \
"Press '1' to enter system in sleep mode.\n\r"\
"If you want to wake-up the system, press INT/WAKE-UP button.");
while(_DG !='1')
{
//Blink first LED
#ifdef MCB_LPC_1768
//blink LED P1.28
GPIO_SetValue(1, (1<<28));
delay();
GPIO_ClearValue(1, (1<<28));
delay();
#elif defined (IAR_LPC_1768)
//blink LED1 (P1.25)
GPIO_SetValue(1, (1<<25));
delay();
GPIO_ClearValue(1, (1<<25));
delay();
#endif
}
_DBG_("Sleeping...");
// Enter target power down mode
CLKPWR_Sleep();
// MCU will be here after waking up
_DBG_("System wake-up! Second LED is blinking...");
//turn off first LED
#ifdef MCB_LPC_1768
GPIO_ClearValue(1, (1<<29));
#elif defined (IAR_LPC_1768)
GPIO_SetValue(1, (1<<25));
#endif
while (1)
{
//Blink second LED
#ifdef MCB_LPC_1768
//blink LED P1.29
GPIO_SetValue(1, (1<<29));
delay();
GPIO_ClearValue(1, (1<<29));
delay();
#elif defined (IAR_LPC_1768)
//blink LED2 (P0.4)
GPIO_SetValue(0, (1<<4));
delay();
GPIO_ClearValue(0, (1<<4));
delay();
#endif
}
}
/*********************************************************************//**
* @brief c_entry: Main program body
* @param[in] None
* @return int
**********************************************************************/
int c_entry(void)
{
GPDMA_Channel_CFG_Type GPDMACfg;
/* Initialize debug via UART0
* – 115200bps
* – 8 data bit
* – No parity
* – 1 stop bit
* – No flow control
*/
debug_frmwrk_init();
// print welcome screen
print_menu();
/* GPDMA block section -------------------------------------------- */
/* Initialize buffer */
_DBG_("Initialize Buffer...");
Buffer_Init();
/* Disable GPDMA interrupt */
NVIC_DisableIRQ(DMA_IRQn);
/* preemption = 1, sub-priority = 1 */
NVIC_SetPriority(DMA_IRQn, ((0x01<<3)|0x01));
/* Initialize GPDMA controller */
GPDMA_Init();
// Setup GPDMA channel --------------------------------
// channel 0
GPDMACfg.ChannelNum = 0;
// Source memory
GPDMACfg.SrcMemAddr = DMA_SRC;
// Destination memory
GPDMACfg.DstMemAddr = DMA_DST;
// 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 - unused
GPDMACfg.DMALLI = 0;
// Setup channel with given parameter
GPDMA_Setup(&GPDMACfg);
/* Reset terminal counter */
Channel0_TC = 0;
/* Reset Error counter */
Channel0_Err = 0;
_DBG_("Start GPDMA transfer and enter system in sleep mode...");
// Enable GPDMA channel 0
GPDMA_ChannelCmd(0, ENABLE);
/* Enable GPDMA interrupt */
NVIC_EnableIRQ(DMA_IRQn);
/* Enter in sleep mode */
CLKPWR_Sleep();
/* Wait for GPDMA processing complete */
while ((Channel0_TC == 0) && (Channel0_Err == 0));
/* Verify buffer */
Buffer_Verify();
_DBG(compl_menu);
/* Loop forever */
while(1);
return 1;
}