- /**************************************************************************//**
- * [url=home.php?mod=space&uid=288409]@file[/url] FMC_IAP.c
- * [url=home.php?mod=space&uid=895143]@version[/url] V2.00
- * $Revision: 1 $
- * $Date: 15/02/17 3:54p $
- * [url=home.php?mod=space&uid=247401]@brief[/url] M058S Series IAP function sample code
- *
- * @note
- * Copyright (C) 2014 Nuvoton Technology Corp. All rights reserved.
- *
- ******************************************************************************/
- #include <stdio.h>
- #include "NUC100Series.h"
- #define PLLCON_SETTING CLK_PLLCON_50MHz_HXT
- #define PLL_CLOCK 50000000
- #define KEY_ADDR 0x20000FFC /* The location of signature */
- #define SIGNATURE 0x21557899 /* The signature word is used by AP code to check if simple LD is finished */
- extern uint32_t loaderImageBase;
- extern uint32_t loaderImageLimit;
- uint32_t g_u32ImageSize;
- uint32_t *g_au32funcTable = (uint32_t *)0x100e00; /* The location of function table */
- void SYS_Init(void)
- {
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init System Clock */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Enable Internal RC 22.1184MHz clock */
- CLK_EnableXtalRC(CLK_PWRCON_OSC22M_EN_Msk);
- /* Waiting for Internal RC clock ready */
- CLK_WaitClockReady(CLK_CLKSTATUS_OSC22M_STB_Msk);
- /* Switch HCLK clock source to Internal RC and HCLK source divide 1 */
- CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HIRC, CLK_CLKDIV_HCLK(1));
- /* Enable external XTAL 12MHz clock */
- CLK_EnableXtalRC(CLK_PWRCON_XTL12M_EN_Msk);
- /* Waiting for external XTAL clock ready */
- CLK_WaitClockReady(CLK_CLKSTATUS_XTL12M_STB_Msk);
- /* Set core clock as PLL_CLOCK from PLL */
- CLK_SetCoreClock(PLL_CLOCK);
- /* Enable UART module clock */
- CLK_EnableModuleClock(UART0_MODULE);
- /* Select UART module clock source */
- CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART_S_HXT, CLK_CLKDIV_UART(1));
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init I/O Multi-function */
- /*---------------------------------------------------------------------------------------------------------*/
- /* Set GPB multi-function pins for UART0 RXD and TXD */
- SYS->GPB_MFP = SYS_GPB_MFP_PB0_UART0_RXD | SYS_GPB_MFP_PB1_UART0_TXD;
- }
- void UART0_Init(void)
- {
- /*---------------------------------------------------------------------------------------------------------*/
- /* Init UART */
- /*---------------------------------------------------------------------------------------------------------*/
- UART_Open(UART0, 115200);
- }
- void FMC_LDROM_Test(void)
- {
- int32_t i32Err;
- uint32_t u32Data, i, *pu32Loader;
- /* Enable LDROM Update */
- FMC_EnableLDUpdate();
- printf(" Erase LD ROM ............................... ");
- /* Page Erase LDROM */
- for(i = 0; i < FMC_LDROM_SIZE; i += FMC_FLASH_PAGE_SIZE)
- FMC_Erase(FMC_LDROM_BASE + i);
- /* Erase Verify */
- i32Err = 0;
- for(i = FMC_LDROM_BASE; i < (FMC_LDROM_BASE + FMC_LDROM_SIZE); i += 4)
- {
- u32Data = FMC_Read(i);
- if(u32Data != 0xFFFFFFFF)
- {
- i32Err = 1;
- }
- }
- if(i32Err)
- printf("[FAIL]\n");
- else
- printf("[OK]\n");
- printf(" Program Simple LD Code ..................... ");
- pu32Loader = (uint32_t *)&loaderImageBase;
- g_u32ImageSize = (uint32_t)&loaderImageLimit - (uint32_t)&loaderImageBase;
- for(i = 0; i < g_u32ImageSize; i += 4)
- {
- /* Erase page when necessary */
- if((i & (FMC_FLASH_PAGE_SIZE - 1)) == 0)
- {
- FMC_Erase(FMC_LDROM_BASE + i);
- }
- FMC_Write(FMC_LDROM_BASE + i, pu32Loader[i / 4]);
- }
- /* Verify loader */
- i32Err = 0;
- for(i = 0; i < g_u32ImageSize; i += 4)
- {
- u32Data = FMC_Read(FMC_LDROM_BASE + i);
- if(u32Data != pu32Loader[i / 4])
- i32Err = 1;
- }
- if(i32Err)
- {
- printf("[FAIL]\n");
- }
- else
- {
- printf("[OK]\n");
- }
- }
- /*---------------------------------------------------------------------------------------------------------*/
- /* Main Function */
- /*---------------------------------------------------------------------------------------------------------*/
- int32_t main(void)
- {
- uint32_t u32Data;
- uint32_t u32Cfg;
- int32_t (*func)(int32_t n);
- int32_t i;
- /*
- This sample code is used to demo how IAP works.
- In other words, it shows how to call functions of LDROM code in APROM.
- The execution flow of this code is:
- 1. Make sure FMC_LD.bin is existed. User can select "FMC_IAP_LD" target to build it.
- 2. The code will ask user to update LDROM code. User may press 'y' to update LDROM with "FMC_IAP_LD.bin".
- 3. The code will call the functions in LDROM by function table located at 0x100e00.
- */
- /* Unlock protected registers for ISP function */
- SYS_UnlockReg();
- /* Init System, IP clock and multi-function I/O */
- SYS_Init();
- /* Init UART0 for printf */
- UART0_Init();
- printf("+---------------------------------------------------+\n");
- printf("| NUC100 Series FMC IAP Sample Code for APROM |\n");
- printf("+---------------------------------------------------+\n");
- printf("\nCPU [url=home.php?mod=space&uid=72445]@[/url] %dHz\n\n", SystemCoreClock);
- /* Enable ISP function */
- FMC_Open();
- /* Check IAP mode */
- u32Cfg = FMC_Read(FMC_CONFIG_BASE);
- if((u32Cfg & 0xc0) != 0x80)
- {
- printf("Do you want to set to new IAP mode (APROM boot + LDROM) y/n?\n");
- if(getchar() == 'y')
- {
- FMC_EnableConfigUpdate(); /* Enable user configuration update */
- /* Set CBS to b'10 */
- u32Cfg &= ~0xc0ul;
- u32Cfg |= 0x80;
- u32Data = FMC_Read(FMC_CONFIG_BASE + 0x4); /* Backup the data of config1 */
- FMC_Erase(FMC_CONFIG_BASE);
- FMC_Write(FMC_CONFIG_BASE, u32Cfg);
- FMC_Write(FMC_CONFIG_BASE + 0x4, u32Data);
- printf("Press any key to reset system to enable new IAP mode ...\n");
- getchar();
- SYS_ResetChip(); /* Reset MCU */
- while(1);
- }
- else
- {
- goto lexit;
- }
- }
- printf("Do you want to write LDROM code to 0x100000\n");
- if(getchar() == 'y')
- {
- /* Check LD image size */
- g_u32ImageSize = (uint32_t)&loaderImageLimit - (uint32_t)&loaderImageBase;
- if(g_u32ImageSize == 0)
- {
- printf(" ERROR: Loader Image is 0 bytes!\n");
- goto lexit;
- }
- if(g_u32ImageSize > FMC_LDROM_SIZE)
- {
- printf(" ERROR: Loader Image is larger than 4KBytes!\n");
- goto lexit;
- }
- /* Erase LDROM, program LD sample code to LDROM, and verify LD sample code */
- FMC_LDROM_Test();
- }
- for(i = 0; i < 4; i++)
- {
- /* Call the function of LDROM */
- func = (int32_t (*)(int32_t))g_au32funcTable[i];
- if(func(i + 1) == i + 1)
- {
- printf("Call LDROM function %d ok!\n", i);
- }
- else
- {
- printf("Call LDROM function %d fail.\n", i);
- }
- }
- lexit:
- /* Disable ISP function */
- FMC_Close();
- /* Lock protected registers */
- SYS_LockReg();
- printf("\nDone\n");
- while(SYS->PDID) __WFI();
- }
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