//=========================================================================
//----- (00006738) --------------------------------------------------------
__myevic__ void UART0_Cout( uint8_t c )
{
UART_WAIT_TX_EMPTY( UART0 );
UART_WRITE( UART0, c );
if ( c == '\n' )
{
UART_WAIT_TX_EMPTY( UART0 );
UART_WRITE( UART0, '\r' );
}
}
int main()
{
/* Unlock protected register */
SYS_UnlockReg();
SYS_Init();
UART_Init();
printf("\n\n");
printf("M451 FMC IAP Sample Code [LDROM code]\n");
/* Enable FMC ISP function */
FMC_Open();
printf("\n\nPress any key to branch to APROM...\n");
getchar();
printf("\n\nChange VECMAP and branch to LDROM...\n");
UART_WAIT_TX_EMPTY(UART0);
/* Mask all interrupt before changing VECMAP to avoid wrong interrupt handler fetched */
__set_PRIMASK(1);
/* Change VECMAP for booting to APROM */
FMC_SetVectorPageAddr(FMC_APROM_BASE);
/* Lock protected Register */
SYS_LockReg();
/* Software reset to boot to APROM */
NVIC_SystemReset();
while(1);
}
/*---------------------------------------------------------------------------------------------------------*/
int main(void)
{
/* Unlock protected registers */
SYS_UnlockReg();
/* Init System, peripheral clock and multi-function I/O */
SYS_Init();
/* Init UART0 for printf */
UART0_Init();
printf("\n\nCPU @ %d Hz\n", SystemCoreClock);
printf("+-------------------------------------------------------+\n");
printf("| GPIO Power-Down and Wake-up by PB.3 Sample Code |\n");
printf("+-------------------------------------------------------+\n\n");
/* Configure PB.3 as Input mode and enable interrupt by rising edge trigger */
GPIO_SetMode(PB, BIT3, GPIO_PMD_INPUT);
GPIO_EnableInt(PB, 3, GPIO_INT_RISING);
NVIC_EnableIRQ(GPAB_IRQn);
/* Waiting for PB.3 rising-edge interrupt event */
while(1) {
printf("Enter to Power-Down ......\n");
PowerDownFunction();
UART_WAIT_TX_EMPTY(UART0);
printf("System waken-up done.\n\n");
}
}
/*---------------------------------------------------------------------------------------------------------*/
void PowerDownFunction(void)
{
/* Check if all the debug messages are finished */
UART_WAIT_TX_EMPTY(UART0);
/* Enter to Power-down mode */
CLK_PowerDown();
}
/*---------------------------------------------------------------------------------------------------------*/
void PowerDownFunction(void)
{
/* Check if all the debug messages are finished */
UART_WAIT_TX_EMPTY(UART0);
/* Enable Power-down mode wake-up interrupt */
CLK->PWRCTL |= CLK_PWRCTL_PDWKIEN_Msk;
/* Enter to Power-down mode */
CLK_PowerDown();
}
/*---------------------------------------------------------------------------------------------------------*/
void PowerDownFunction(void)
{
/* To check if all the debug messages are finished */
UART_WAIT_TX_EMPTY(UART0);
SCB->SCR = 4;
CLK->PWRCON = (CLK->PWRCON & ~(CLK_PWRCON_PWR_DOWN_EN_Msk | CLK_PWRCON_PD_WAIT_CPU_Msk)) |
CLK_PWRCON_PD_WAIT_CPU_Msk | CLK_PWRCON_PD_WU_INT_EN_Msk;
CLK->PWRCON |= CLK_PWRCON_PWR_DOWN_EN_Msk;
__WFI();
}
//=========================================================================
//----- (00005D14) --------------------------------------------------------
__myevic__ void FlushAndSleep()
{
#if (ENABLE_UART)
UART_WAIT_TX_EMPTY( UART0 );
#endif
if ( !gFlags.light_sleep )
{
CLK_PowerDown();
}
else
{
LightSleep();
}
}
/*---------------------------------------------------------------------------------------------------------*/
void PowerDownFunction(void)
{
/* Check if all the debug messages are finished */
UART_WAIT_TX_EMPTY(UART0);
/* Set the processor is deep sleep as its low power mode */
SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
/* Set system Power-down enabled and Power-down entry condition */
CLK->PWRCTL |= (CLK_PWRCTL_PDEN_Msk | CLK_PWRCTL_PDWTCPU_Msk);
/* Chip enter Power-down mode after CPU run WFI instruction */
__WFI();
}
int aprom()
{
uint8_t u8Item;
uint32_t u32Data;
char *acBootMode[] = {"LDROM+IAP", "LDROM", "APROM+IAP", "APROM"};
uint32_t u32CBS;
/* Unlock protected registers */
SYS_UnlockReg();
/* Init system clock and multi-function I/O */
SYS_Init();
/* Init UART */
UART_Init();
printf("\n\n");
printf("+----------------------------------------+\n");
printf("| NUC029 FMC IAP Sample Code |\n");
printf("| [APROM code] |\n");
printf("+----------------------------------------+\n");
/* Enable FMC ISP function */
FMC_Open();
if(SetIAPBoot() < 0)
{
printf("Failed to set IAP boot mode!\n");
goto lexit;
}
/* Get boot mode */
printf(" Boot Mode ............................. ");
u32CBS = (FMC->ISPSTA & FMC_ISPSTA_CBS_Msk) >> FMC_ISPSTA_CBS_Pos;
printf("[%s]\n", acBootMode[u32CBS]);
u32Data = FMC_ReadCID();
printf(" Company ID ............................ [0x%08x]\n", u32Data);
u32Data = FMC_ReadDID();
printf(" Device ID ............................. [0x%08x]\n", u32Data);
u32Data = FMC_ReadPID();
printf(" Product ID ............................ [0x%08x]\n", u32Data);
/* Read User Configuration */
printf(" User Config 0 ......................... [0x%08x]\n", FMC_Read(FMC_CONFIG_BASE));
printf(" User Config 1 ......................... [0x%08x]\n", FMC_Read(FMC_CONFIG_BASE + 4));
do
{
printf("\n\n\n");
printf("+----------------------------------------+\n");
printf("| Select |\n");
printf("+----------------------------------------+\n");
printf("| [0] Load IAP code to LDROM |\n");
printf("| [1] Run IAP program (in LDROM) |\n");
printf("+----------------------------------------+\n");
printf("Please select...");
u8Item = UART_GetChar();
printf("%c\n", u8Item);
switch(u8Item)
{
case '0':
FMC_EnableLDUpdate();
if(LoadImage((uint32_t)&loaderImage1Base, (uint32_t)&loaderImage1Limit,
FMC_LDROM_BASE, FMC_LDROM_SIZE) != 0)
{
printf("Load image to LDROM failed!\n");
goto lexit;
}
FMC_DisableLDUpdate();
break;
case '1':
printf("\n\nChange VECMAP and branch to LDROM...\n");
UART_WAIT_TX_EMPTY(UART0); /* To make sure all message has been print out */
/* Mask all interrupt before changing VECMAP to avoid wrong interrupt handler fetched */
__set_PRIMASK(1);
/* Set VECMAP to LDROM for booting from LDROM */
FMC_SetVectorPageAddr(FMC_LDROM_BASE);
/* Software reset to boot to LDROM */
NVIC_SystemReset();
break;
default :
break;
}
}
while(1);
lexit:
/* Disable FMC ISP function */
FMC_Close();
/* Lock protected registers */
SYS_LockReg();
printf("\nFMC Sample Code Completed.\n");
while(1);
}
/*---------------------------------------------------------------------------------------------------------*/
int32_t main(void)
{
uint32_t u32data;
/* In end of main function, program issued CPU reset and write-protection will be disabled. */
if(SYS_IsRegLocked() == 0)
SYS_LockReg();
/* Unlock protected registers */
SYS_UnlockReg();
/* Init System, peripheral clock and multi-function I/O */
SYS_Init();
/* Lock protected registers */
SYS_LockReg();
/* Init UART0 for printf */
UART0_Init();
printf("\n\nCPU @ %dHz\n", SystemCoreClock);
/*
This sample code will show some function about system manager controller and clock controller:
1. Read PDID
2. Get and clear reset source
3. Setting about BOD
4. Change system clock depended on different PLL settings
5. Output system clock from CKO pin, and the output frequency = system clock / 4
*/
printf("+--------------------------------------------+\n");
printf("| NUC029xEE System Driver Sample Code |\n");
printf("+--------------------------------------------+\n");
if(M32(FLAG_ADDR) == SIGNATURE) {
printf(" CPU Reset success!\n");
M32(FLAG_ADDR) = 0;
printf(" Press any key to continue ...\n");
getchar();
}
/*---------------------------------------------------------------------------------------------------------*/
/* Misc system function test */
/*---------------------------------------------------------------------------------------------------------*/
/* Read Part Device ID */
printf("Product ID 0x%x\n", SYS_ReadPDID());
/* Get reset source from last operation */
u32data = SYS_GetResetSrc();
printf("Reset Source 0x%x\n", u32data);
/* Clear reset source */
SYS_ClearResetSrc(u32data);
/* Unlock protected registers for Brown-Out Detector settings */
SYS_UnlockReg();
/* Check if the write-protected registers are unlocked before BOD setting and CPU Reset */
if(SYS_IsRegLocked() == 0) {
printf("Protected Address is Unlocked\n");
}
/* Enable Brown-Out Detector, and set Brown-Out Detector voltage 2.7V */
SYS_EnableBOD(SYS_BODCR_BOD_INTERRUPT_EN, SYS_BODCR_BOD_VL_2_7V);
/* Enable BOD IRQ */
NVIC_EnableIRQ(BOD_IRQn);
/* Enable Low Voltage Reset function */
SYS_ENABLE_LVR();
/* Run PLL Test */
SYS_PLL_Test();
/* Write a signature work to SRAM to check if it is reset by software */
M32(FLAG_ADDR) = SIGNATURE;
printf("\n\n >>> Reset CPU <<<\n");
/* Waiting for message send out */
UART_WAIT_TX_EMPTY(UART0);
/* Switch HCLK clock source to Internal RC 22.1184MHz clock and HCLK source divide 1 */
CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HIRC, CLK_CLKDIV_HCLK(1));
/* Set PLL to Power down mode and HW will also clear PLL_STB bit in CLKSTATUS register */
CLK_DisablePLL();
/* Reset CPU */
SYS_ResetCPU();
}
