Search found 33 matches

by bonmotwang
Mon Jul 29, 2019 10:38 pm
Forum: General Discussion
Topic: ESP_PROG auto program doesn't work
Replies: 3
Views: 309

Re: ESP_PROG auto program doesn't work

Sometimes it will flash the module automatically without me pressing the boot button, which is what I expected.
So is there some minor timing off in idf.py program?

Is there anyone using ESP-PROG board to program their ESP32 module?

Thanks

Paul
by bonmotwang
Thu Jul 25, 2019 9:05 pm
Forum: General Discussion
Topic: ESP_PROG auto program doesn't work
Replies: 3
Views: 309

Re: ESP_PROG auto program doesn't work

The problem seems to be the GPIO0 signal. During the "Connecting ....._______" time, if I hold down the boot button, it will start programming. But the target does go into the bootloader mode because my application isn't running anymore during the "connecting ....." I really want to make the auto pr...
by bonmotwang
Thu Jul 25, 2019 8:42 pm
Forum: General Discussion
Topic: ESP_PROG auto program doesn't work
Replies: 3
Views: 309

ESP_PROG auto program doesn't work

I am using ESP_PROG to program the ESP32 module by manually pressing RST and BOOT buttons.
It works no problem.
But the auto program feature doesn't work.
I checked with scope. the signal timing seems to be correct.
Not sure where I did wrong.
The computer is running windows 7.
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: 200

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: 146

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: 232

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: 544

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: 544

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: 544

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...

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