S32K312 lpuart unable to trigger serial port interrupt

[JayJay_H]

hi

Recently I was working on a log system using Lpuart on S32K312

The expected effect is to trigger a receive interrupt by inputting characters on the serial port

So that the characters can be recognized for the next step of operation

The question is after i input a character, there ain't no interrupt triggered 

I have configured lpuart interrupt, clock, and interrupt handler in S32DS

May I ask if there are any related parameters that need to be configured?

Best regards

[Senlent · Accepted solution]

Hi@Joshua_H

I made a demo for your reference.

the hardware base on S32K312EVB-Q172

the software base on RTD 2.0.2

[JayJay_H]

Thank you, your demo is very helpful to me
Due to project requirements, I am using software 3.0.0, so I can not open your configuration file. However after comparing our code, I have identified several issues that may be the root cause of the problem:
1.In your demo, the value of "INT_CTRL_IP_MSCM_SYSTEM_INTERRUPT_ROUTER" is STD_ON, mine was STD_OFF, where can i set this to STD_ON in S32DS?
2.In my project, there is no definition of INTCTRL_IP_CORE_MASK but in yours the value of it was (1u), is this also configured in S32DS?

[Senlent]

Hi@Joshua_H

yes, these should be configured in IntCtrl_Ip

[JayJay_H]

具体是哪个参数呢，

而且我看咱俩的DS环境，我的比你少一个“Generic interrupt settings”（见附件），这个是怎么调出来的

[Senlent]

Hi@Joshua_H

IntCtrl_Ip 在RTD 2.0.x和RTD 3.0.x中不一致，我没看到这个选项。

不知道如何设置IntCtrl_Ip,在RTD 3.0.X下面有很多例程，打开一个研究一下即可。

其它设置步骤几乎都是一致的。

[JayJay_H]

我按照历程对了一下，历程都用的flexio uart，配置项跟lpuart不太一样

你能给你的中断组件里Generic interrupt settings中的参数截图我看一下吗

我这打不开，我看一下差了哪些参数

谢谢

[Senlent]

Hi@Joshua_H

你安装一下RTD 2.0.X会方便点，不应该这么难搞阿。

我看了RTD 3.0.X，没什么特殊配置，不太好截图。

[JayJay_H]

我换成lpuart2试了一下也是一样的效果，串口输入字符也触发不了中断

[JayJay_H]

我下了一个跟您的demo匹配的rtd，把demo烧进去试了一下，ipuart发送字符没问题，但是在串口里敲字符callback函数还是没进去，依旧没有触发中断

[Senlent]

Hi@Joshua_H

这些例程我测试过的，下面不就是进入中断的截图吗

[JayJay_H]

我试了一下，有可能是我这硬件的问题
我将最初不好用的uart2和uart6的rx改成别的引脚就都能触发中断了
感谢你的demo！