M480串口固件升级

/**************************************************************************//**

 * [url=home.php?mod=space&uid=288409]@file[/url]     main.c

 * [url=home.php?mod=space&uid=895143]@version[/url]  2.0.0

 * [url=home.php?mod=space&uid=212281]@date[/url]     20, June, 2017

 * [url=home.php?mod=space&uid=247401]@brief[/url]    Use MKROM API to do internal ISP. This sample code is run at LDROM,

 *           and use API to update APROM. After reset the system, the program

 *           will boot from APROM.

 *

 * [url=home.php?mod=space&uid=17282]@CopyRight[/url] (C) 2017 Nuvoton Technology Corp. All rights reserved.

 ******************************************************************************/

#include <stdio.h>

#include "bootisplib.h"



void UART1_IRQHandler(void)

{

    UART1_ISR();

}



void SYS_Init(void)

{

    uint32_t volatile i;



    /* Unlock protected registers */

    SYS_UnlockReg();



    /* Set XT1_OUT(PF.2) and XT1_IN(PF.3) to input mode */

    PF->MODE &= ~(GPIO_MODE_MODE2_Msk | GPIO_MODE_MODE3_Msk);



    /* Enable External XTAL (4~24 MHz) */

    CLK_EnableXtalRC(CLK_PWRCTL_HXTEN_Msk);



    /* Waiting for 12MHz clock ready */

    CLK_WaitClockReady(CLK_STATUS_HXTSTB_Msk);



    /* Switch HCLK clock source to HXT */

    CLK_SetHCLK(CLK_CLKSEL0_HCLKSEL_HXT,CLK_CLKDIV0_HCLK(1));



    /* Set core clock as PLL_CLOCK from PLL */

    CLK_SetCoreClock(FREQ_192MHZ);



    /* Set both PCLK0 and PCLK1 as HCLK/2 */

    CLK->PCLKDIV = CLK_PCLKDIV_PCLK0DIV2 | CLK_PCLKDIV_PCLK1DIV2;



    /* Select IP clock source */

    CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART0SEL_HXT, CLK_CLKDIV0_UART0(1));



    /* Enable IP clock */

    CLK_EnableModuleClock(UART0_MODULE);





    /* Set GPB multi-function pins for UART0 RXD and TXD */

    SYS->GPB_MFPH &= ~(SYS_GPB_MFPH_PB12MFP_Msk | SYS_GPB_MFPH_PB13MFP_Msk);

    SYS->GPB_MFPH |= (SYS_GPB_MFPH_PB12MFP_UART0_RXD | SYS_GPB_MFPH_PB13MFP_UART0_TXD);



}





int32_t main (void)

{

    uint32_t au32Config[2];



    SYS_Init();

    UART_Open(UART0, 115200);



    printf("\n");

    printf("+----------------------------------------+\n");

    printf("|      M480 firmware update by UART1     |\n");

    printf("+----------------------------------------+\n");



    /*******************************************************/

    /* MKROM support UART1 ISP, should initial UART1 first */

    /*******************************************************/

    /* UART1: TX = PB.7, RX = PB.6 */

    SYS->GPB_MFPL &= ~(SYS_GPB_MFPL_PB6MFP_Msk | SYS_GPB_MFPL_PB7MFP_Msk);

    SYS->GPB_MFPL |= ((6ul << SYS_GPB_MFPL_PB6MFP_Pos) | (6ul << SYS_GPB_MFPL_PB7MFP_Pos));

    /* UART1 line configuration for (115200,n,8,1) */

    CLK->CLKSEL1 |= CLK_CLKSEL1_UART1SEL_Msk;   /* HIRC */

    CLK->APBCLK0 |= CLK_APBCLK0_UART1CKEN_Msk;

    UART1->LINE = UART_WORD_LEN_8 | UART_PARITY_NONE | UART_STOP_BIT_1;

    UART1->FIFO = UART_FIFO_RFITL_14BYTES | UART_FIFO_RTSTRGLV_14BYTES;

    UART1->BAUD = (UART_BAUD_MODE2 | UART_BAUD_MODE2_DIVIDER(__HIRC, 115200));

    UART1->TOUT = 0x40;

    NVIC_SetPriority (UART1_IRQn, 2);

    NVIC_EnableIRQ(UART1_IRQn);

    UART1->INTEN = (UART_INTEN_TOCNTEN_Msk | UART_INTEN_RXTOIEN_Msk | UART_INTEN_RDAIEN_Msk);



    /***********************************************************/

    /* This sample is running at LDROM. Will update the APROM. */

    /* Change the boot select to boot from APROM               */

    /***********************************************************/

    SYS_UnlockReg();

    /* Enable FMC ISP function */

    CLK->AHBCLK |= CLK_AHBCLK_ISPCKEN_Msk;

    FMC_Open();



    FMC_ReadConfig(au32Config, 2);

    FMC_ENABLE_CFG_UPDATE();

    if ((au32Config[0] & 0x80) == 0x80) /* boot from APROM */

        au32Config[0] &= ~0x80;

    else

        au32Config[0] |= 0x80;

    FMC_WriteConfig(au32Config, 2);





    UART1_ISP();

    while(1);

}







/*** (C) COPYRIGHT 2017 Nuvoton Technology Corp. ***/