5b51d50ade
1. effective "Differential Upgrade" patch algorithm with high compression rate 2. effective recovery algorithm support recovery firmware in blocks which has low memory consumption and wear-leveling strategies, especially suitable for embeded devices with low RAM. 3. add sample ota bootloader project, see: board\TencentOS_tiny_EVB_MX_Plus\KEIL\ota\ota_bootloader_recovery 4. add sample application project for download firmware through http, see: board\TencentOS_tiny_EVB_MX_Plus\KEIL\ota\ota_application_download_through_http 5. add sample application project for download firmware through qcloud explorer console, see: board\TencentOS_tiny_EVB_MX_Plus\KEIL\ota\ota_application_download_through_qcloud_iot_explorer 6. an OTA markdown document is pending
23 lines
706 B
C
23 lines
706 B
C
#include "crc8.h"
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#include "ota_image.h"
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uint8_t ota_img_hdr_crc(ota_img_hdr_t *img_hdr)
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{
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uint8_t crc = 0;
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crc = crc8(crc, (uint8_t *)&img_hdr->magic, sizeof(uint16_t));
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crc = crc8(crc, (uint8_t *)&img_hdr->new_version, sizeof(ota_img_vs_t));
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crc = crc8(crc, (uint8_t *)&img_hdr->old_version, sizeof(ota_img_vs_t));
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crc = crc8(crc, (uint8_t *)&img_hdr->new_crc, sizeof(uint8_t));
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crc = crc8(crc, (uint8_t *)&img_hdr->new_size, sizeof(uint32_t));
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crc = crc8(crc, (uint8_t *)&img_hdr->old_crc, sizeof(uint8_t));
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crc = crc8(crc, (uint8_t *)&img_hdr->old_size, sizeof(uint32_t));
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crc = crc8(crc, (uint8_t *)&img_hdr->patch_size, sizeof(uint32_t));
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return crc;
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}
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