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< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "ota-programming__codeblock_xd4_chq_wcc" data-ofbid = "ota-programming__codeblock_xd4_chq_wcc" > < em class = "hl-comment" > //部分源码< / em >
< strong class = "hl-keyword" > int< / strong > test_ota()
{
FILE *file;
< strong class = "hl-keyword" > int< / strong > size;
< strong class = "hl-keyword" > int< / strong > ret;
< em class = "hl-comment" > //update file ota.cpio is placed in the sdcard< / em >
file = fopen(< span class = "hl-string" > "/sdcard/ota.cpio"< / span > , < span class = "hl-string" > "rb"< / span > );
< strong class = "hl-keyword" > if< / strong > (file == NULL) {
printf(< span class = "hl-string" > "Failed to open the file.\n"< / span > );
< strong class = "hl-keyword" > return< / strong > -< span class = "hl-number" > 1< / span > ;
}
< em class = "hl-comment" > //1.Buffer allocation required by OTA< / em >
ret = ota_init();
< strong class = "hl-keyword" > if< / strong > (ret != RT_EOK) {
printf(< span class = "hl-string" > "ota initialization failed."< / span > );
< strong class = "hl-keyword" > goto< / strong > __exit;
}
< em class = "hl-comment" > //2.Read BUFFER_SIZE each time and update it into flash< / em >
< strong class = "hl-keyword" > while< / strong > (!feof(file)) {
size = fread(buffer, < span class = "hl-number" > 1< / span > , BUFFER_SIZE, file);
< strong class = "hl-keyword" > if< / strong > (size > < span class = "hl-number" > 0< / span > ) {
< strong class = "hl-keyword" > if< / strong > (ota_shard_download_fun(buffer, size) < < span class = "hl-number" > 0< / span > ) {
printf (< span class = "hl-string" > "ota download failed."< / span > );
< strong class = "hl-keyword" > goto< / strong > __exit;
}
}
}
< em class = "hl-comment" > //3.Update the environment variables< / em >
ret = aic_upgrade_end();
< strong class = "hl-keyword" > if< / strong > (ret) {
printf(< span class = "hl-string" > "Aic upgrade end"< / span > );
}
< em class = "hl-comment" > //4. Reset the device, Start new firmware< / em >
< strong class = "hl-keyword" > extern< / strong > < strong class = "hl-keyword" > void< / strong > rt_hw_cpu_reset(< strong class = "hl-keyword" > void< / strong > );
rt_hw_cpu_reset();
__exit:
fclose(file);
ota_deinit();
< strong class = "hl-keyword" > return< / strong > < span class = "hl-number" > 0< / span > ;
}< / pre >
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