红外peripherals/rmt/ir_protocols实例有问题

Maple_Leaf
Posts: 18
Joined: Mon Aug 24, 2020 8:38 am

红外peripherals/rmt/ir_protocols实例有问题

Postby Maple_Leaf » Sat Nov 21, 2020 11:10 am

刚烧录进板子里,发信号能接收到,上个厕所回来,再按遥控就没反应了 :cry: :cry: :cry: ,只能重启板子,才能再次接收到信号,这是什么原因?好像是要一直发信号才ok,中间停一段时间再发就收不到了。希望那个大牛能指点一下。

ESP_morris
Posts: 135
Joined: Wed Sep 05, 2018 6:23 am

Re: 红外peripherals/rmt/ir_protocols实例有问题

Postby ESP_morris » Mon Nov 23, 2020 7:55 am

我们有用自带的红外收发进行测试,没有发现这个问题...期间我们用障碍物遮挡了发送器让接收器收不到信号,过段时间再移开遮挡物,接收器还是能正常工作

...
I (723620) example: Send command 0x176 to address 0x10
I (723690) example: Scan Code --- addr: 0x0010 cmd: 0x0176
I (723750) example: Scan Code (repeat) --- addr: 0x0010 cmd: 0x0176
I (725730) example: Send command 0x177 to address 0x10
I (725800) example: Scan Code --- addr: 0x0010 cmd: 0x0177
I (725860) example: Scan Code (repeat) --- addr: 0x0010 cmd: 0x0177
...
I (846000) example: Send command 0x1b0 to address 0x10
I (846070) example: Scan Code --- addr: 0x0010 cmd: 0x01b0
I (846130) example: Scan Code (repeat) --- addr: 0x0010 cmd: 0x01b0
...开始遮挡...
I (848110) example: Send command 0x1b1 to address 0x10
I (850220) example: Send command 0x1b2 to address 0x10
I (852330) example: Send command 0x1b3 to address 0x10
I (854440) example: Send command 0x1b4 to address 0x10
I (856550) example: Send command 0x1b5 to address 0x10
...移除遮挡...
I (858660) example: Send command 0x1b6 to address 0x10
I (858730) example: Scan Code --- addr: 0x0010 cmd: 0x01b6
I (858790) example: Scan Code (repeat) --- addr: 0x0010 cmd: 0x01b6

Maple_Leaf
Posts: 18
Joined: Mon Aug 24, 2020 8:38 am

Re: 红外peripherals/rmt/ir_protocols实例有问题

Postby Maple_Leaf » Mon Nov 23, 2020 9:42 am

问题已解决,我发现应该是xRingbufferReceive函数超时,退出while循环,导致任务结束造成的,
将items = (rmt_item32_t *) xRingbufferReceive(rb, &length, 1000);
修改为items = (rmt_item32_t*) xRingbufferReceive(rb, &length, (portTickType)portMAX_DELAY);
1606124030(1).png
1606124030(1).png (28.74 KiB) Viewed 233 times

ESP_morris
Posts: 135
Joined: Wed Sep 05, 2018 6:23 am

Re: 红外peripherals/rmt/ir_protocols实例有问题

Postby ESP_morris » Tue Nov 24, 2020 2:58 am

有道理,不错的发现,我们会据此修改一下这个example 的

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