Search found 33 matches

by ESP_morris
Thu Jun 13, 2019 2:28 am
Forum: Hardware
Topic: MIIM / SMI "ETH Connected" check on eth-switch
Replies: 2
Views: 100

Re: MIIM / SMI "ETH Connected" check on eth-switch

Hi, I am trying to integrate an ethernet Switch (Microsemi KSZ8864 series with four Ports, of which two PHYs and two RMII) with an ESP32. MIIM connection and access to the standard registers works. The Issue I have is, that I can only check one PHY of the Switch for a valid connection at a time. So...
by ESP_morris
Wed Jun 12, 2019 8:04 am
Forum: ESP-IDF 中文讨论版
Topic: spiffs文件系统是挂载在哪个分区的
Replies: 1
Views: 103

Re: spiffs文件系统是挂载在哪个分区的

建议是将音频文件打包成spiffs格式,IDF中已经集成了相关工具,简单来说分成以下几个步骤: 1. 你要在分区表中新建一个分区,取个名字,比如这里的www分区 # Name, Type, SubType, Offset, Size, Flags # Note: if you change the phy_init or app partition offset, make sure to change the offset in Kconfig.projbuild nvs, data, nvs, 0x9000, 0x6000, phy_init, data, phy, 0xf000, 0x1...
by ESP_morris
Tue May 28, 2019 5:05 am
Forum: ESP-IDF 中文讨论版
Topic: ESP32内置开机音乐,比如欢迎使用等
Replies: 1
Views: 136

Re: ESP32内置开机音乐,比如欢迎使用等

chyoch8742 wrote:
Mon May 27, 2019 9:34 am
大家好,我需要内置几小段MP3,开机的时候播放,如果用外置的SD成本太高,请问如果实现!谢谢
看你音频文件的大小和实际固件的大小而定吧。
如果音频文件很小,可以使用spiffs文件系统,烧写到spi Flash中
如果音频文件很大,除了sd卡,也可以尝试SD Nand

仅供参考
by ESP_morris
Tue May 07, 2019 9:24 am
Forum: ESP-IDF 中文讨论版
Topic: 这是什么问题 请教一下
Replies: 3
Views: 482

Re: 这是什么问题 请教一下

heibaozi wrote:
Mon Apr 15, 2019 1:56 pm
ESP_morris wrote:
Mon Apr 15, 2019 3:18 am
非常感谢提交这个问题。这个example好像是已经很长时间没有更新过了,在最新的master上确实存在问题,我们会尽快修复。
我现在想用这个技术做一个产品,在iot里比较有竞争力 希望贵公司能尽快更新 感谢
感谢支持!参考此处,看看能够解决您的问题。 viewtopic.php?f=2&t=10268
by ESP_morris
Tue May 07, 2019 2:13 am
Forum: General Discussion
Topic: eth2wifi sample code
Replies: 2
Views: 341

Re: eth2wifi sample code

I tested this sample with IDF version 3.1.4 and it works as it should. I still can not say why it is NOT working with version 3.2. I believe it is worth finding out what it is in version 3.2 that causes this problem. Sorry for the delay reply and thanks a lot for reporting this issue. We will figur...
by ESP_morris
Mon Apr 15, 2019 3:18 am
Forum: ESP-IDF 中文讨论版
Topic: 这是什么问题 请教一下
Replies: 3
Views: 482

Re: 这是什么问题 请教一下

非常感谢提交这个问题。这个example好像是已经很长时间没有更新过了,在最新的master上确实存在问题,我们会尽快修复。
by ESP_morris
Wed Apr 03, 2019 9:03 am
Forum: ESP-IDF 中文讨论版
Topic: DMA
Replies: 1
Views: 381

Re: DMA

建议先阅读相关API参考手册
https://docs.espressif.com/projects/esp ... aster.html
by ESP_morris
Wed Mar 27, 2019 11:12 am
Forum: ESP-IDF 中文讨论版
Topic: esp-idf\examples\system\himem编译报错
Replies: 6
Views: 524

Re: esp-idf\examples\system\himem编译报错

xixixixi wrote:
Wed Mar 27, 2019 10:01 am
external ram是8M,分配内存时malloc和heap_caps_malloc能否从8M中分配了空间?还是只能分配其中的4M?
一定要用esp_himem_alloc这个才能分配另外的4M吗?
是这样的,所以一般建议用来存放音频图片等“大”数据。传统的malloc方式只能从低4MiB空间分配内存。

FYI: https://docs.espressif.com/projects/esp ... himem.html
by ESP_morris
Wed Mar 27, 2019 11:12 am
Forum: ESP-IDF 中文讨论版
Topic: esp-idf\examples\system\himem编译报错
Replies: 6
Views: 524

Re: esp-idf\examples\system\himem编译报错

xixixixi wrote:
Wed Mar 27, 2019 10:01 am
external ram是8M,分配内存时malloc和heap_caps_malloc能否从8M中分配了空间?还是只能分配其中的4M?
一定要用esp_himem_alloc这个才能分配另外的4M吗?
是这样的,所以一般建议用来存放音频图片等“大”数据。传统的malloc方式只能从低4MiB空间分配内存。

FYI: https://docs.espressif.com/projects/esp ... himem.html
by ESP_morris
Wed Mar 27, 2019 8:03 am
Forum: ESP-IDF 中文讨论版
Topic: esp-idf\examples\system\himem编译报错
Replies: 6
Views: 524

Re: esp-idf\examples\system\himem编译报错

xixixixi wrote:
Wed Mar 27, 2019 6:55 am
怎么查看idf的版本号?
git describe 可以查看版本。
我在我本地按照你的说明也执行了一遍,并没有报这个错误。 make clean后再make还是会出错吗?

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