NXP KW45
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The NXP KW45 are highly secure ARM M33 microcontrollers, supporting Bluetooth Low Energy 5.2 wireless communication. It contains of a Cortex-M33 and optionally an radio unit with an Cortex-M3.
Supported devices
Refer to the supported device list for a full list of all supported KW45 family devices, their corresponding names and connection diagrams.
Target interfaces
| Interface | J-Link support | Flasher support |
|---|---|---|
| JTAG |  |
|
| SWD | |
|
Flash banks
| Flash bank | Base address | J-Link support | Flasher support | Loader | |
|---|---|---|---|---|---|
| Name | Bank size | ||||
| Internal flash | 0x00000000 | |
|
Default | Up To 1024KB |
| Internal flash (Secure) | 0x10000000 | |
|
Default | Up To 1024KB |
| NBU flash | 0x48800000 | |
|
Default | 256KB |
RAM
- NXP KW45 devices have ECC RAM at 0x30000000. The first 16 KB of RAM (0x30000000 – 0x30004000) is reserved for ROM bootloader execution and some ROM API. J-Link initializes the the next 32KB of RAM (0x30004000 - 0x3000C000) during the initial connect to target. For more information, refer to the ECC article.
Watchdog handling
- The device has a watchdog WDOG.
- The watchdog is fed during flash programming.
Device specific handling
Reset
- The device uses a device specific reset, which ensures that the device is halted on reset vector after the the ROM bootloader was executed. For further information please refer to J-Link Reset Strategies.
Attach
Attach is a debugging feature which exclusively applies to J-Link and J-Trace and does not apply to Flasher.
- Attach is not supported by default because the J-Link initializes certain RAM regions by default.