Difference between revisions of "S32K14x series"
(Tag: Redirect target changed) |
|||
| (5 intermediate revisions by one other user not shown) | |||
| Line 1: | Line 1: | ||
| + | #REDIRECT [[S32Kxxx]] |
||
| − | __TOC__ |
||
| − | |||
| − | The NXP S32K14x series is a scalable family of 32-bit ARM Cortex-M4 based MCUs targeted for general purpose automotive and high-reliability industrial applications. |
||
| − | |||
| − | = Requirements = |
||
| − | There are some special requirements that need to be fulfilled in order to use the device series with J-Link: |
||
| − | * Reset pin of MCU needs to be connected to reset pin of J-Link. If this is not the case, proper target connection cannot be guaranteed |
||
| − | |||
| − | = ECC protected internal RAM = |
||
| − | The device series provide ECC protected internal RAM. By default, J-Link resets the MCU on connect and initializes the RAM contents to 0x00. This is done for the following reasons: |
||
| − | * If a memory window in the debugger is open during the debug session and points to a non-initialized RAM region, on the next single step etc. a non-maskable ECC error interrupt would be thrown |
||
| − | * J-Link temporarily uses some portions of the RAM during flash programming and accesses to non-initialized RAM areas would throw non maskable ECC error interrupts |
||
| − | |||
| − | = Readout protection of internal flash = |
||
| − | The internal flash of the S32K14x series devices can be protected against unwanted readout accesses. The readout protection is configured via the option bytes placed at addr. 0x400 - 0x40F in the internal flash of the devices. |
||
| − | |||
| − | == Enabling protection in production == |
||
| − | Make sure that the application image that is programmed contains a value not equal to 0xFE to be programmed to addr. 0x40C. Make also sure that for the device selection in J-Flash etc. the variant '''S32K... (allow security)''' is selected. If this is not the case, J-Link will inhibit that the readout protection of the device is set. |
||
| − | |||
| − | = Example projects = |
||
| − | TBD |
||
| − | |||
| − | <references/> |
||
Latest revision as of 11:51, 20 May 2020
Redirect to:
