119 lines
3.4 KiB
C
119 lines
3.4 KiB
C
#include "main.h"
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/* 升级状态 */
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static uint32_t upgrade_status = 0;
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/* 升级包数据大小 */
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static uint32_t upgrade_size = 0;
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/* 升级总包数 */
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static uint32_t upgrade_pack_count = 0;
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/* 升级包数据 */
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static uint8_t upgrade_buffer[FMC_PAGE_SIZE] = {0};
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/* FLASH 操作地址 */
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static uint32_t flash_address = 0;
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static void bsp_initialization(void);
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static void check_upgrade_status(void);
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int main(void)
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{
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/* 硬件初始化 */
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bsp_initialization();
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/* 检查升级状态 */
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check_upgrade_status();
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while (1)
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;
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}
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/* 硬件初始化 */
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static void bsp_initialization(void)
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{
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/* 系统滴答器初始化 */
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system_init();
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/* 定时器初始化, 触发间隔100ms */
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timer_config(SYSTEM_TIMER_PERIPH, 100);
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/* 接收指示灯 控制引脚初始化 */
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gpio_config(LED_RX_PERIPH, LED_RX_PIN, GPIO_MODE_OUT_PP, GPIO_OSPEED_50MHZ, RESET);
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/* 发送指示灯 控制引脚 初始化 */
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gpio_config(LED_TX_PERIPH, LED_TX_PIN, GPIO_MODE_OUT_PP, GPIO_OSPEED_50MHZ, RESET);
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}
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/* 检查升级状态 */
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static void check_upgrade_status(void)
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{
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uint8_t upgrade_info[8] = {0};
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/* 获取升级信息 */
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fmc_read_bytes(FMC_ADDRESS_UPGRADE_INFO, upgrade_info, 2);
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/* 升级状态 */
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upgrade_status = (upgrade_info[0] << 24 & 0xFF000000) | (upgrade_info[1] << 16 & 0xFF0000) | (upgrade_info[2] << 8 & 0xFF00) | (upgrade_info[3] & 0xFF);
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/* 升级包大小 */
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upgrade_size = (upgrade_info[4] << 24 & 0xFF000000) | (upgrade_info[5] << 16 & 0xFF0000) | (upgrade_info[6] << 8 & 0xFF00) | (upgrade_info[7] & 0xFF);
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printf("upgrade_status %d, upgrade_size %d \r\n", upgrade_status, upgrade_size);
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if (upgrade_status == 1)
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{
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/* 升级总包数 */
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upgrade_pack_count = upgrade_size / FMC_PAGE_SIZE + (upgrade_size % FMC_PAGE_SIZE != 0 ? 1 : 0);
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for (uint16_t i = 0; i < upgrade_pack_count; i++)
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{
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/* 判断本次读取数据大小 */
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uint16_t size = 0;
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/* 读到最后一包时, 读取所有数据 */
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if (i == upgrade_pack_count - 1)
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{
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size = upgrade_size - i * FMC_PAGE_SIZE;
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}
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else
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{
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/* 读取flash块大小长度的数据 */
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size = FMC_PAGE_SIZE;
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}
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/* 读取单位换算 */
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uint16_t length = size / 4 + (size % 4 ? 1 : 0);
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/* 读取 */
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flash_address = FMC_ADDRESS_UPGRADE_BUFFER + i * FMC_PAGE_SIZE;
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printf("read address: %04X, need read length: %d \r\n", flash_address, length);
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uint16_t index = fmc_read_bytes(flash_address, upgrade_buffer, length);
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/* 读取长度有误, 放弃升级 */
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if (index != size && index - size >= 4)
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{
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printf("read length = %d, the read length is incorrect. upgrade aborted \r\n", index, size);
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goto end;
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}
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/* 写入 */
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flash_address = FMC_ADDRESS_APP + i * FMC_PAGE_SIZE;
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printf("write address: %04X, length: %d \r\n", flash_address, length);
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fmc_write_bytes(flash_address, upgrade_buffer, length);
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}
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}
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end:
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/* 不管升级成功与失败, 都需要重置升级状态 */
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fmc_write_byte(FMC_ADDRESS_UPGRADE_INFO, 0);
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printf("app loading... \r\n");
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/* 跳转APP */
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iap_load_app(FMC_ADDRESS_APP);
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printf("app loading failed \r\n");
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}
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