5.2 Notices
1：Source code modification
The following information is usually required to be modified in ECDSA signature mode:
- Replace the public key with the one exported by ICWKEY.
- Fill in the ID address (see the prompted message).
- Modify the signature address to the signature address in the PowerWriter®.
- Depending on the situation, whether placeholders are turned on or not.
The following information is usually required to be modified in ECDSA signature mode:
- Replace the function exported by ICWKEY.
- Fill in the ID address.
- Change the signature address to the PowerWriter® signature address.
- Replace with UID_USERID_KEYx exported in ICWKEY .
- Depending on the situation, whether placeholders are turned on or not.
Please refer to ECDSA Sample & Matrix Sample。
2：Project password
Keep in mind to save the project files for the PowerWriter® project and the ICWKEY. Loss of the project files may result in the inability to properly configure the signature or connect to the ICWKEY device.
3：Signature address
Please don't store the signature address beyond the space of Flash, to avoid not being able to burn, at the same time, please don't overlap with the code, if you are worried about the overlap, please turn on the placeholder, after turning on the placeholder, it will reserve the space in the firmware, so as to avoid overlapping phenomenon, and at the same time, please put the signature address in the front of the address as far as possible.
3：Placeholder
When turned on, space is pre-allocated in the firmware to avoid overwriting firmware data. When not turned on, the data at the specified signature address is overwritten, and the length of the overwrite is referenced to