iTOP-iMX6 development board-Android-can test routine introduction

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The can routine of the Android source code of the TOP-iMX6 development board is included in the Android source code, in the “ packages/apps/” directory, as shown in the figure below. This is the source code of the application interface. As shown in the figure below, the hardware abstraction layer of can is the "device/fsl/topeet_6dqbcan/" file.

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The most important source code file is the "canHardware.c" in the figure above. Open the file for a simple analysis. As shown in the figure below, it is the initialization code interface.

As shown in the figure below, it is the initialization code interface.

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As shown in the figure below, it can be found that it uses a command similar to "ifconfig can0 up" to enable and disable can. 404948 The remaining important jni interfaces are as follows. JNIEXPORT jint JNICALL Java_can_hardware_hardwareControl_canWrite This is the sending interface of CAN.

JNIEXPORT jobject JNICALL Java_can_hardware_hardwareControl_canRead

can's receiving interface.

JNIEXPORT void JNICALL Java_can_hardware_hardwareControl_closeCan

can's close interface. As can be seen from the above analysis, the jni interface has encapsulated the initialization, sending, receiving and closing of CAN. I only need toHiragino Sans GB, Microsoft YaHei, WenQuanYi Micro Hei, sans-serif]You can call them in Android.

For specific calling methods, please refer to Chapter 10 of the User Manual and the parts related to jin.

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砂舞的玩笑

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