freertos移植的问题 （cortex R5f）

[yanghaisu]

最近拿到一个新平台MCU ARM Cortex R5f的核，这个比较新，没有对应的OS的，需要自己进行移植。
选择了比较简单的Freertos，参考cortex r4f，但是说是结构总线还是有比较大的差别。
初步移植，修改了RTI和中断。
可以跑起来了，但是很不稳定，写了两个线程，分别打印
Runing Task2!
Task1 is running!
这两个线程优先级相同，理论上是交替打印完整才对，但是实际打印信息如下：
希望有高手帮忙分析一下，这是什么问题，只要说出原因即可，不知道是中断呢，定时器呢，还是栈指针什么的
希望有高手解惑，这个问题不知道是否常见。。。。。

Runing TaskTask1 is ru2!
Runing TaTask1 is rsk2!
Runing TTask1 is ask2!
Runing Task1 isTask2!
RuningTask1 i Task2!
RuninTask1 g Task2!
RuniTask1ng Task2!
is runninRunTasking Task2!
1 is runni
RuTasning Task2k1 is runn!
Runing TaskTask1 is ru2!
Runing TaTask1 is rsk2!
Runing TTask1 is ask2!
Runing Task1 isTask2!
RuningTask1 i Task2!
RuninTask1 g Task2!
RuniTask1ng Task2!
is runninRunTasking Task2!
1 is runni
RuTasning Task2k1 is runn!
Runing TaskTask1 is ru2!
Runing TaTask1 is rsk2!
Runing TTask1 is ask2!
Runing Task1 isTask2!
RuningTask1 i Task2!
RuninTask1 g Task2!
RuniTask1ng Task2!
is runninRunTasking Task2!
1 is runni
RuTasning Task2k1 is runn!
Runing TaskTask1 is ru2!
Runing TaTask1 is rsk2!
Runing TTask1 is ask2!
Runing Task1 isTask2!
RuningTask1 i Task2!
RuninTask1 g Task2!
RuniTask1ng Task2!
is runninRunTasking Task2!
1 is runni
RuTasning Task2k1 is runn!
Runing TaskTask1 is ru2!
Runing TaTask1 is rsk2!
Runing TTask1 is ask2!
Runing Task1 isTask2!
RuningTask1 i Task2!
RuninTask1 g Task2!
RuniTask1ng Task2!
is runninRunTasking Task2!
1 is runni
RuTasning Task2k1 is runn!
Runing TaskTask1 is ru2!
Runing TaTask1 is rsk2!
Runing TTask1 is ask2!
Runing Task1 isTask2!
RuningTask1 i Task2!
RuninTask1 g Task2!
RuniTask1ng Task2!
is runninRunTasking Task2!
1 is runni
RuTasning Task2k1 is runn!

[woshi_ziyu]

线程的时间片太短 导致线程还没有运行完成 已经运行到其他的线程了

[Symfund]

不要玩FreeRTOS, play with Contiki!

[zhxianbin]

相同优先级，应该是按时间片轮换吧，可以按 1# 说的，加大时间片试试