topic Re: Can not written program into board again. in S32K

Can not written program into board again.

liufei — Mon, 18 Jul 2022 05:02:17 GMT

Hello,

When I written program into the board of chip S32K148(144pin),popup following message(attach file),could you please tell me how solve it,thank you very much!

Best Regards,

Liu

Re: Can not written program into board again.

Senlent — Mon, 18 Jul 2022 07:33:02 GMT

Hi@liufei

MCU锁住了，你可以尝试用unlock kinetis这个命令解锁，下面是一个完整的操作流程。

SEGGER J-Link Commander V7.56d (Compiled Oct 29 2021 14:02:52) DLL version V7.56d, compiled Oct 29 2021 14:01:36 Connecting to J-Link via USB...O.K. Firmware: J-Link OpenSDA compiled May 27 2019 10:59:53 Hardware version: V1.00 S/N: 621000000 VTref=3.300V Type "connect" to establish a target connection, '?' for help J-Link>connect Please specify device / core. <Default>: S32K142 Type '?' for selection dialog Device>S32K142 Please specify target interface: J) JTAG (Default) S) SWD T) cJTAG TIF>SWD Specify target interface speed [kHz]. <Default>: 4000 kHz Speed>4000kHz Device "S32K142" selected. Connecting to target via SWD InitTarget() start InitTarget() InitTarget() end Found SW-DP with ID 0x2BA01477 DPv0 detected Scanning AP map to find all available APs AP[2]: Stopped AP scan as end of AP map has been reached AP[0]: AHB-AP (IDR: 0x24770011) AP[1]: JTAG-AP (IDR: 0x001C0000) Iterating through AP map to find AHB-AP to use AP[0]: Core found AP[0]: AHB-AP ROM base: 0xE00FF000 CPUID register: 0x410FC241. Implementer code: 0x41 (ARM) Found Cortex-M4 r0p1, Little endian. FPUnit: 6 code (BP) slots and 2 literal slots CoreSight components: ROMTbl[0] @ E00FF000 [0][0]: E000E000 CID B105E00D PID 000BB00C SCS-M7 [0][1]: E0001000 CID B105E00D PID 003BB002 DWT [0][2]: E0002000 CID B105E00D PID 002BB003 FPB [0][3]: E0000000 CID B105E00D PID 003BB001 ITM [0][4]: E0040000 CID B105900D PID 000BB9A1 TPIU Initializing 28672 bytes work RAM @ 0x1FFFC000 Reset: Halt core after reset via DEMCR.VC_CORERESET. Reset: Reset device via AIRCR.SYSRESETREQ. Cortex-M4 identified. J-Link>unlock Kinetis Found SWD-DP with ID 0x2BA01477 Unlocking device...O.K. J-Link>

如果这样解锁失败，那需要进一步分析原因了，如果是使用了backdoor且关闭了mass erase功能，那就恢复不了了。

S32K1xx系列MCU应用指南之芯片锁死(lockup)复位原因分析与恢复方法详解

https://mp.weixin.qq.com/s/Fb2L32l3v6oOJof3-2P7Rg

Re: Can not written program into board again.

liufei — Mon, 18 Jul 2022 07:44:55 GMT

我可以使用这个软件解锁吗？另外问一下怎么选择JTAG，现在是灰色的，谢谢

Re: Can not written program into board again.

Senlent — Mon, 18 Jul 2022 08:07:42 GMT

Hi@liufei

看一下这个回答

https://community.nxp.com/t5/S32K/Can-t-use-PEmicro-debugger-with-S32K118EVB2-Q048/m-p/1376204

这个软件不是解锁软件，它的作用类似于hold主复位，然后能够让你使用J-LINK或者PE工具连接到MCU，然后你再执行解锁的指令。

Re: Can not written program into board again.

liufei — Mon, 18 Jul 2022 08:10:08 GMT

你好！

在执行Executing Inittarget（）时出现上面message，请问时怎么回事？

Re: Can not written program into board again.

liufei — Mon, 18 Jul 2022 08:11:59 GMT

谢谢回复！

Re: Can not written program into board again.

Senlent — Mon, 18 Jul 2022 08:14:27 GMT

Hi@liufei

你回复的太多了，不知道你问题的顺序了，总而言之，问题解决了吗？

Re: Can not written program into board again.

liufei — Mon, 18 Jul 2022 08:15:13 GMT

还没有解决，可以回复一下这个问题吗？

Re: Can not written program into board again.

Senlent — Mon, 18 Jul 2022 08:30:10 GMT

Hi@liufei

你直接点yes试一下，如果使能了mass erase可以成功的擦除，然后正常使用。

这可能的原因：
你MCU的0x400~0x40F区域是不是被修改过了，做Bootloader的时候也要注意这个地址的东西不要乱改。

默认在startup_S32K1xx.S中这个地方是没有修改的（分散加载文件也要注意这块地址空间）

要使用加密功能的话，你要把我给你发的文章仔细阅读一遍

Re: Can not written program into board again.

liufei — Mon, 18 Jul 2022 08:39:51 GMT

yes之后还不能烧写。

Re: Can not written program into board again.

liufei — Mon, 18 Jul 2022 08:47:08 GMT

我这边是这样的

Re: Can not written program into board again.

Senlent — Mon, 18 Jul 2022 09:26:03 GMT

Hi@liufei

首先是不是可以确定芯片被锁住了，要是锁住了的话你看一下我给你发的文档，里面是关于锁死最全面的分析，

7. 1能否解锁恢复MCU的判断方法

当芯片锁死后，可以通过示波器观察S32K1xx系列MCU的RESET引脚波形判断是否可以恢复：

①RESET引脚一直为低电平

无法解密恢复MCU；

②RESET引脚输出周期性复位脉冲信号

a. 若复位信号周期为~118us，高电平时间为~660ns的方波信号

可以通过SWD/JTAG调试接口执行mass erase命令解密恢复MCU；

Tips：高电平时间为~660ns的方波信号是去掉RESET引脚的外部滤波电容时的测量结果，若外部连接有滤波电容，将影响RESET引脚输出的波形，将变成缓慢下降和上升的锯齿波信号，但周期依然在~118us。

b. 若复位信号周期不是~118us，大于200us，为500多us甚至更长

将无法通过SWD/JTAG调试接口执行mass erase命令解密恢复MCU。

Re: Can not written program into board again.

liufei — Mon, 18 Jul 2022 09:34:31 GMT

谢谢，但是如何知道是不是锁死呢？

Re: Can not written program into board again.

Senlent — Mon, 18 Jul 2022 09:41:17 GMT

我看提示的信息就是锁死了，和我给你发的文档中的描述是一致的

Re: Can not written program into board again.

liufei — Mon, 18 Jul 2022 10:46:23 GMT

我这边截图是这个样子的，请问可以解锁吗？

Re: Can not written program into board again.

Senlent — Tue, 19 Jul 2022 01:36:21 GMT

Hi@liufei

根据文档中的描述，你这应该是恢复不了了。

Re: Can not written program into board again.

liufei — Tue, 19 Jul 2022 02:16:45 GMT

谢谢回答，请问一般什么情况会导致这样mcu被锁。

Re: Can not written program into board again.

Senlent — Tue, 19 Jul 2022 02:36:25 GMT

Hi@liufei

我给你发的那篇文章中有详细的描述，你还是要仔细看一下，下面这个章节有详细的描述。

5. S32K1xx系列MCU Flash编程常见问题及注意事项

Re: Can not written program into board again.

liufei — Tue, 19 Jul 2022 02:57:49 GMT

谢谢，我还有一个疑问

在jlink commander里面显示一个warning

Identified core does not match configuration. (Found: Cortex-M0, Configured: Cortex-M4)

可是我在jlink flash里面只能选择Cortex-M4，请问这是怎么回事？

Re: Can not written program into board again.

Senlent — Tue, 19 Jul 2022 03:10:55 GMT

Hi@liufei

你板子不是S32K148吧，S32K11x系列的内核才是Cortex-M0的

j-link的软件比较多，我自己用的是J-Link Commander V7.56d，你自己去segger的官网下载相关的软件吧，型号选的不对肯定有问题阿。