201806003F01 : LPC8N04 Boot ROM Update to Support Over The Air (OTA)
The LPC8N04FHI24 Boot ROM will be updated.- Boot ROM version number is changed from version 0.12 to version 0.14.- Boot ROM was updated to support application vector checksum verification before booting the image. - Users migrating from previous version need to ensure that the reserved Cortex-M0+ exception vector location 7 (offset 0x 0000 001C in the vector table) contains the 2's complement of the check-sum of table entries 0 through 6.- Boot ROM code was updated to support OTA firmware update using Secondary Bootloader (SBL) library. See Tech Note TN00040: LPC8N04: Encrypted Over the Air (OTA) Firmware update using NFC.The following documents are updated to support this change.Data sheet: LPC8N04 v.1.4 https://www.nxp.com/docs/en/data-sheet/LPC8N04.pdfUser Manual: UM11074 v.1.2 https://www.nxp.com/docs/en/user-guide/UM11074.pdfTech Note: TN00040: LPC8N04: Encrypted Over the Air (OTA) Firmware update using NFC https://www.nxp.com/docs/en/application-note/TN00040.zip?fsrch=1&sr=1&pageNum=1
| PCN类型 | 更改类别 | 发行日期 | 生效日期 |
|---|---|---|---|
| Final Product Change Notification | Firmware | 20-Jun-2018 | 30-Sep-2018 |
变化的原因
To support OTA firmware update and application checksum verification.
受影响产品的识别
Parts with date code 824 (workweek 1824) or later have firmware version 0.14. The date code can be seen on the part marking and packing labels.
预期的影响
数据表的修订: A new datasheet will be issued
No physical change to die or packaging. No Quality or Reliability impact. The user needs to include checksum verification.
受影响的部分
| 零件号/ 12NC | 上次购买日期 | 上次交货日期 | 备件 |
|---|---|---|---|
|
LPC8N04FHI24E (935359392551) |
- | - | - |
|
LPC8N04FHI24Z (935359392515) |
- | - | - |