the difference between PKEAZ128MLK and S9KEA128AMLK ,especially the MSCAN

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the difference between PKEAZ128MLK and S9KEA128AMLK ,especially the MSCAN

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Contributor I

I am using MSCAN in  PKEAZ128MLK  and  S9KEA128AMLK, both of them have  the same program ,but the Baud rate is different by oscilloscope, I want to know the difference between them.

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NXP TechSupport
NXP TechSupport

Hi Customer,

   As I know, PKEAZ128MLK and S9KEAz128AMLK should be the same.

PKEAZ128MLK is the requalification version.

S9KEAz128AMLK is the automotive qualified.

You said the MSCAN baud rate is different, please check the S9KEAz128AMLK  and PKEAZ128MLK external circuit, especially the crystal, is it the same value? Any difference in these two boards?

 You can also upload your two board's photo, please also use the same code project for two board.


Have a great day,
Kerry

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Contributor I

Hi,

I adapt the Internal clock to both of them

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NXP TechSupport
NXP TechSupport

If you are using the internal clock, do you do the trim in your code?

The factory trimmed internal clock is 37.5Khz,  you can use the same code just use the internal clock, then output the clock in PTH2, check the bus clock, whether it is the same.

Anyway, PKEAZ128MLK is the requalification version. I suggest you use the S9KEAz128AMLK directly.


Have a great day,
Kerry

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Contributor I

在 2018-04-12 16:35:04,"邓维" <dw_dwg@126.com> 写道:

Hi,

我现在用的S9kea128,按照示波器来微调容错范围内的波特率,现在可以通讯上了,但是只能发送不能接收,示波器测量CAN_RX引脚有波形

代码是KE06 的Demo移植过来的,环境是KEIL

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NXP TechSupport
NXP TechSupport

楼主你好!

原来用的KE06代码,那个代码是有些bug的,不知道你接收的是不是标准ID, 如果是标准ID,代码要修改下。

具体情况,请参考这个链接,我们的FAE同事已经总结过KE06代码的bug:

原创---使用KE驱动库中KE06 CAN Demo的遇到几个问题和说明 - FSL_FAE_ConstYu的博客 - 与非博客 - 与非网 

你把相关的bug都修改下,然后接受应该就没有问题了,修改之后,我测试过KE06的接收标准和扩展帧,都没什么问题。


Have a great day,
Kerry

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42 Views
Contributor I

Hi,

我现在用的S9kea128,按照示波器来微调容错范围内的波特率,现在可以通讯上了,但是只能发送不能接收,示波器测量CAN_RX引脚有波形

代码是KE06 的Demo移植过来的,环境是KEIL

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NXP TechSupport
NXP TechSupport

KE06的CAN接收到代码我记得是有ID滤波的,你发送的ID是不是在代码接受范围内的ID?

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Contributor I

这是我的代码,我设置的是全部接收,发送ID设置为0x00000000

在 2018-04-13 09:29:50,"kerryzhou" <admin@community.nxp.com> 写道:

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NXP Community

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Re: the difference between PKEAZ128MLK and S9KEA128AMLK ,especially the MSCAN

reply from Kerry Zhou in Kinetis Microcontrollers - View the full discussion

KE06的CAN接收到代码我记得是有ID滤波的,你发送的ID是不是在代码接受范围内的ID?

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