115 lines
3.8 KiB
C
115 lines
3.8 KiB
C
/*!
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\file main.c
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\brief flash secure mark region example, non-secure code with TZEN=1
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\version 2021-10-30, V1.0.0, firmware for GD32W51x
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*/
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/*
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Copyright (c) 2021, GigaDevice Semiconductor Inc.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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OF SUCH DAMAGE.
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*/
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#include "gd32w51x.h"
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#include "gd32w515p_eval.h"
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#define FMC_PAGE_SIZE ((uint16_t)0x1000U)
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#define FMC_USER_START_ADDR ((uint32_t)0x08080000U) /* user start page address */
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#define FMC_USER_END_ADDR ((uint32_t)0x08082000U) /* user end page address */
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uint32_t *ptrd;
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uint32_t address = 0U;
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uint32_t data = 0x01234567U;
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__IO uint32_t flash_secure_status = 0U;
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/* calculate the number of page to be programmed/erased */
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uint32_t page_num = (FMC_USER_END_ADDR - FMC_USER_START_ADDR) / FMC_PAGE_SIZE;
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/* calculate the number of page to be programmed/erased */
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uint32_t word_num = ((FMC_USER_END_ADDR - FMC_USER_START_ADDR) >> 2);
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/* non-secure call function: disable secure mark region */
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extern void fmc_secmark_region_disable(void);
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/* non-secure call function: initialize LED2/LED3 */
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extern void gd_eval_leds_init(void);
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/* check fmc read result */
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ErrStatus fmc_read_check(uint32_t compare_data);
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/*!
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\brief main function
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\param[in] none
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\param[out] none
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\retval none
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*/
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int main(void)
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{
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/* initilize the leds */
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gd_eval_leds_init();
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/* step1: check if it is read as 0. If it is, light the LED2 */
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if(ERROR != fmc_read_check(0)){
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gd_eval_led_on(LED2);
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}else{
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gd_eval_led_off(LED2);
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}
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/* disable secure mark region */
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fmc_secmark_region_disable();
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/* step2: check if it is read as 0x01234567U. If it is, light the LED3 */
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if(ERROR != fmc_read_check(data)){
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gd_eval_led_on(LED3);
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}else{
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gd_eval_led_off(LED3);
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}
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while(1){
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}
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}
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/*!
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\brief check fmc read result
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\param[in] compare_data: the data to be compared
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\param[out] none
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\retval ErrStatus: ERROR or SUCCESS
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*/
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ErrStatus fmc_read_check(uint32_t compare_data)
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{
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uint32_t i;
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ptrd = (uint32_t *)FMC_USER_START_ADDR;
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/* check flash whether has been erased */
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for(i = 0; i < word_num; i++){
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if(compare_data != (*ptrd)){
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return ERROR;
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break;
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}else{
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ptrd++;
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}
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}
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return SUCCESS;
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}
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