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AP_IOMCU: use crc32_small() in AP_IOMCU 

the slower speed is not noticible and this saves 1k ram
This commit is contained in:
Andrew Tridgell 2019-10-28 07:35:54 +11:00
parent 31f7a62cdc
commit 34f5b40919
3 changed files with 5 additions and 5 deletions
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4
libraries/AP_IOMCU/AP_IOMCU.cpp
View File

@ -763,12 +763,12 @@ bool AP_IOMCU::check_crc(void)
hal.console->printf("failed to find %s\n", fw_name);
return false;
}
uint32_t crc = crc_crc32(0, fw, fw_size);
uint32_t crc = crc32_small(0, fw, fw_size);
// pad CRC to max size
for (uint32_t i=0; i<flash_size-fw_size; i++) {
uint8_t b = 0xff;
crc = crc_crc32(crc, &b, 1);
crc = crc32_small(crc, &b, 1);
}
uint32_t io_crc = 0;

4
libraries/AP_IOMCU/fw_uploader.cpp
View File

@ -397,11 +397,11 @@ bool AP_IOMCU::verify_rev3(uint32_t fw_size_local)
return ret;
}
sum = crc_crc32(0, fw, fw_size_local);
sum = crc32_small(0, fw, fw_size_local);
/* fill the rest of CRC with 0xff */
for (uint32_t i=0; i<fw_size_remote - fw_size_local; i++) {
sum = crc_crc32(sum, &fill_blank, 1);
sum = crc32_small(sum, &fill_blank, 1);
}
/* request CRC from IO */

2
libraries/AP_IOMCU/iofirmware/iofirmware.cpp
View File

@ -642,7 +642,7 @@ void AP_IOMCU_FW::calculate_fw_crc(void)
for (unsigned p = 0; p < APP_SIZE_MAX; p += 4) {
uint32_t bytes = *(uint32_t *)(p + APP_LOAD_ADDRESS);
sum = crc_crc32(sum, (const uint8_t *)&bytes, sizeof(bytes));
sum = crc32_small(sum, (const uint8_t *)&bytes, sizeof(bytes));
}
reg_setup.crc[0] = sum & 0xFFFF;