/******************************************************************************
* [url=home.php?mod=space&uid=288409]@file[/url] APROM_main.c
* [url=home.php?mod=space&uid=895143]@version[/url] V1.00
* $Revision: 7 $
* $Date: 14/01/28 11:44a $
* [url=home.php?mod=space&uid=247401]@brief[/url] FMC APROM IAP sample for M051 series MCU
*
* @note
* Copyright (C) 2013 Nuvoton Technology Corp. All rights reserved.
*****************************************************************************/
#include <stdio.h>
#include "M051Series.h"
#define PLLCON_SETTING CLK_PLLCON_50MHz_HXT
#define PLL_CLOCK 50000000
typedef void (FUNC_PTR)(void);
extern uint32_t loaderImage1Base, loaderImage1Limit;
void SYS_Init(void)
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init System Clock */
/*---------------------------------------------------------------------------------------------------------*/
/* Enable External XTAL (4~24 MHz) */
CLK->PWRCON |= CLK_PWRCON_XTL12M_EN_Msk;
CLK->PLLCON = PLLCON_SETTING;
/* Waiting for clock ready */
CLK_WaitClockReady(CLK_CLKSTATUS_PLL_STB_Msk | CLK_CLKSTATUS_XTL12M_STB_Msk);
/* Switch HCLK clock source to PLL */
CLK->CLKSEL0 = CLK_CLKSEL0_HCLK_S_PLL;
/* Enable IP clock */
CLK->APBCLK = CLK_APBCLK_UART0_EN_Msk;
/* Select IP clock source */
CLK->CLKSEL1 = CLK_CLKSEL1_UART_S_HXT;
/* Update System Core Clock */
/* User can use SystemCoreClockUpdate() to calculate PllClock, SystemCoreClock and CycylesPerUs automatically. */
//SystemCoreClockUpdate();
PllClock = PLL_CLOCK; // PLL
SystemCoreClock = PLL_CLOCK / 1; // HCLK
CyclesPerUs = PLL_CLOCK / 1000000; // For SYS_SysTickDelay()
/*---------------------------------------------------------------------------------------------------------*/
/* Init I/O Multi-function */
/*---------------------------------------------------------------------------------------------------------*/
/* Set P3 multi-function pins for UART0 RXD and TXD */
SYS->P3_MFP = SYS_MFP_P30_RXD0 | SYS_MFP_P31_TXD0;
}
void UART_Init()
{
/*---------------------------------------------------------------------------------------------------------*/
/* Init UART */
/*---------------------------------------------------------------------------------------------------------*/
UART_Open(UART0, 115200);
}
static int SetIAPBoot(void)
{
uint32_t au32Config[2];
uint32_t u32CBS;
/* Read current boot mode */
u32CBS = (FMC->ISPSTA & FMC_ISPSTA_CBS_Msk) >> FMC_ISPSTA_CBS_Pos;
if(u32CBS & 1)
{
/* Modify User Configuration when it is not in IAP mode */
FMC_ReadConfig(au32Config, 2);
if(au32Config[0] & 0x40)
{
FMC_EnableConfigUpdate();
au32Config[0] &= ~0x40;
FMC_Erase(FMC_CONFIG_BASE);
FMC_WriteConfig(au32Config, 2);
// Perform chip reset to make new User Config take effect
SYS_ResetChip();
}
}
return 0;
}
static int LoadImage(uint32_t u32ImageBase, uint32_t u32ImageLimit, uint32_t u32FlashAddr, uint32_t u32MaxSize)
{
uint32_t i, j, u32Data, u32ImageSize, *pu32Loader;
u32ImageSize = u32MaxSize;
printf("Program image to flash address 0x%x...", u32FlashAddr);
pu32Loader = (uint32_t *)u32ImageBase;
for(i = 0; i < u32ImageSize; i += FMC_FLASH_PAGE_SIZE)
{
FMC_Erase(u32FlashAddr + i);
for(j = 0; j < FMC_FLASH_PAGE_SIZE; j += 4)
{
FMC_Write(u32FlashAddr + i + j, pu32Loader[(i + j) / 4]);
}
}
printf("OK.\n");
printf("Verify ...");
/* Verify loader */
for(i = 0; i < u32ImageSize; i += FMC_FLASH_PAGE_SIZE)
{
for(j = 0; j < FMC_FLASH_PAGE_SIZE; j += 4)
{
u32Data = FMC_Read(u32FlashAddr + i + j);
if(u32Data != pu32Loader[(i + j) / 4])
{
printf("data mismatch on 0x%x, [0x%x], [0x%x]\n", u32FlashAddr + i + j, u32Data, pu32Loader[(i + j) / 4]);
return -1;
}
if(i + j >= u32ImageSize)
break;
}
}
printf("OK.\n");
return 0;
}
int main()
{
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("| M051 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 = 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);
}
/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
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