- /******************************************************************************
- * [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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