Search found 30 matches

by bonmotwang
Tue Jul 02, 2019 3:56 pm
Forum: General Discussion
Topic: Can I remap the flash UART0 to some other I/O's other than PIN34 and PIN35?
Replies: 2
Views: 128

Can I remap the flash UART0 to some other I/O's other than PIN34 and PIN35?

It was a mistake on my prototype. I used PIN34 and PIN35 for something else. Right now I am developing software on the first round of prototype. I will change it in the next round of prototype. But with what I have, can I reconfig the UART0 to some other unused PINS. I can just solder the flash prog...
by bonmotwang
Tue Jul 02, 2019 2:58 pm
Forum: General Discussion
Topic: Which UART port is used by flash program and monitor app
Replies: 1
Views: 95

Which UART port is used by flash program and monitor app

Is it UART0?
I would like to keep the monitoring feature, and use UART1 and UART2 for my application.
I didn't find any documentation confirming that.
Thanks
Paul
by bonmotwang
Fri Jun 28, 2019 6:33 pm
Forum: General Discussion
Topic: Number of UARTs in ESP32
Replies: 2
Views: 155

Re: Number of UARTs in ESP32

Nice rule, I like it. I was in the same boat and had the prototype made with the impression that I can only use 2 UARTs. I just into programming about 2 weeks. Got LCD driver working, keypad driver working. ESP32 platform is really good! Back to UART story. In my design, I used TXD0 and RXD0 for my ...
by bonmotwang
Fri Jun 28, 2019 2:12 pm
Forum: General Discussion
Topic: I2C frequency stuck at 20MHZ
Replies: 9
Views: 347

Re: I2C frequency stuck at 20MHZ

Removed HSPI code. still the same.
Put on the ESP32_WROVER_KIT to do some test now.
by bonmotwang
Fri Jun 28, 2019 1:11 pm
Forum: General Discussion
Topic: I2C frequency stuck at 20MHZ
Replies: 9
Views: 347

Re: I2C frequency stuck at 20MHZ

Thanks. will do the zero at the beginning.
Is it related to HSPI? I am using HSPI on other I/O lines which is 20MHZ.
Thanks
Paul
by bonmotwang
Fri Jun 28, 2019 1:57 am
Forum: General Discussion
Topic: I2C frequency stuck at 20MHZ
Replies: 9
Views: 347

I2C frequency stuck at 20MHZ

I am testing I2C right now. Followed the sample code. static esp_err_t i2c_master_init() { int i2c_master_port = I2C_MASTER_NUM; i2c_config_t conf; conf.mode = I2C_MODE_MASTER; conf.sda_io_num = I2C_MASTER_SDA_IO; conf.sda_pullup_en = GPIO_PULLUP_ENABLE; conf.scl_io_num = I2C_MASTER_SCL_IO; conf.scl...
by bonmotwang
Tue Jun 25, 2019 2:21 pm
Forum: General Discussion
Topic: ESP-PROG Flash Port Labeling is Confusing if not WRONG!!!
Replies: 0
Views: 96

ESP-PROG Flash Port Labeling is Confusing if not WRONG!!!

On the 6PIN connector, the pin labeled with "ESP_TXD" is actually input for ESP-PROG.
I know now it means "connect to the TXD on ESP target".
But all good. board is working, I am happy :-)
Paul
by bonmotwang
Fri Jun 14, 2019 8:13 pm
Forum: General Discussion
Topic: MCP23S17 ESP-IDF library
Replies: 5
Views: 895

Re: MCP23S17 ESP-IDF library

mikemoy wrote:
Mon Feb 18, 2019 6:31 pm
Give this a shot
You are the best!

Thanks

Paul
by bonmotwang
Sat May 25, 2019 11:21 pm
Forum: ESP32 IDF
Topic: Setting up Visual Studio Code for ESP32 IDF
Replies: 16
Views: 18486

Re: Setting up Visual Studio Code for ESP32 IDF

Giving up on Eclipse cmake combo for now. Cannot resolve "Unresolved inclusion". Tried funny ways to somehow get some of the errors, but not for production. Will give VSC a try over the weekend. Have been struggling on Eclipse Cmake for almost a week now. Need to settle on a environment and kick off...

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