Search found 18 matches
- Mon Oct 07, 2019 3:32 pm
- Forum: General Discussion
- Topic: GPIO reset to initial state
- Replies: 0
- Views: 2702
GPIO reset to initial state
Hi, I have a project with a Type-C connector to a custom board. This means that my communication pins need to be configured based on the Type-C insertion way (face up or face down). I am doing some debugging because my Type-C connection doesn't work all the time and I would like to know how to get t...
- Wed Sep 25, 2019 2:03 pm
- Forum: ESP-IDF
- Topic: Burn ELF to ESP32
- Replies: 1
- Views: 6064
Burn ELF to ESP32
Hi, I want to create an automated firmware update via the USB cable. I have a Python script that connects to my ESP serial port. The ESP will send its app_elf_sha256 and Python compares it with the one that a specific .elf file has. If it is different, it means that there should be an update. The pr...
- Thu Sep 19, 2019 11:05 am
- Forum: Hardware
- Topic: Hard-reset not working
- Replies: 8
- Views: 15611
Re: Hard-reset not working
I think my CP is 1910, so it should be ok. Regarding outputting 3.3v back into my VDD net, that shouldn't be a problem I think. Yesterday I had a problem because I had 2.6V on my VBUS when nothing was connected to the USB. I cut the trace between my VDD net and the VDD pin of CP and the voltage not ...
- Wed Sep 18, 2019 11:55 am
- Forum: Hardware
- Topic: Hard-reset not working
- Replies: 8
- Views: 15611
Re: Hard-reset not working
First thing I notice in your description is your reset circuit, typically this is implemented with two transistors and two resistors This is my reset circuit: rst.PNG Additionally you mention the cap on EN, do you have a pull-up resistor on EN also? I found missing this caused really inconsistent f...
- Thu Aug 15, 2019 10:34 am
- Forum: Hardware
- Topic: Hard-reset not working
- Replies: 8
- Views: 15611
Hard-reset not working
Hi, I have a custom board with a ESP-WROVER-B. There is a CP2102N that has the reset and boot circuit implemented as it is in the ESP-DevkitC schematic (RTS, DTR, two transistors, EN and IO0). The first problem that I had was the fact that my board was not getting into "download mode" in order to fl...
- Mon Aug 12, 2019 8:52 am
- Forum: ESP-IDF
- Topic: I2C timeout
- Replies: 2
- Views: 7439
Re: I2C timeout
It looks like all I needed was i2c_set_timeout(I2C_NUM_0, 400000);
- Fri Aug 09, 2019 3:19 pm
- Forum: ESP-IDF
- Topic: I2C timeout
- Replies: 2
- Views: 7439
I2C timeout
Hi, I have an ESP32 WROVER dev board and a BQ27220. I am trying to read its device number. I have a logic analyzer to monitor the traffic as well. This is the code that I am using: esp_err_t ret; i2c_cmd_handle_t cmd; cmd = i2c_cmd_link_create(); i2c_master_start(cmd); i2c_master_write_byte(cmd, (i2...
- Wed Jul 31, 2019 1:17 pm
- Forum: ESP-IDF
- Topic: Production settings
- Replies: 0
- Views: 2219
Production settings
Hi, I would like to move my development into production step by step. The first batch of devices will be flashed in my office. I need to know how I can have multiple environments for my development and production. For example, I would like to use secure bootloader, disable JTAG and BASIC for product...
- Thu Jul 11, 2019 1:18 pm
- Forum: General Discussion
- Topic: Can GPIO12 demage the module?
- Replies: 0
- Views: 2435
Can GPIO12 demage the module?
Hi, I have an ESP32-WROVER-B module in a bigger circuit. The board just came from the PCB manufacturer and I was trying to connect it to power and program it. The problem is that when I started it the board was keep restarting and it was getting 1A from the power supply. I figured out that my GPIO12...
- Wed Jul 10, 2019 3:00 pm
- Forum: Hardware
- Topic: [SOLVED] rst:0x10 (RTCWDT_RTC_RESET),boot:0x33 (SPI_FAST_FLASH_BOOT) flash read err, 1000
- Replies: 14
- Views: 92874
Re: rst:0x10 (RTCWDT_RTC_RESET),boot:0x33 (SPI_FAST_FLASH_BOOT) flash read err, 1000
Have you solved this problem?