Search found 13 matches
- Fri Dec 16, 2022 1:19 pm
- Forum: Hardware
- Topic: ESP32-C3 Mini Devkit: Configure for Built in USB JTAG?
- Replies: 22
- Views: 36082
Re: ESP32-C3 Mini Devkit: Configure for Built in USB JTAG?
Sorry to reopen an old thread, but I stumbled into an issue after doing the modifications suggested by this post. This work perfectly well for the USB connection, but I had to remove also two extra resistors (R21-R22) to disconnect the CP210 from U0TXD and U0RXD. Before doing that I was able to send...
- Fri Dec 16, 2022 1:17 pm
- Forum: ESP-IDF
- Topic: Using UART0 and U0TXD U0RXD as regular UART on ESP32-C3
- Replies: 4
- Views: 5472
Re: Using UART0 and U0TXD U0RXD as regular UART on ESP32-C3
Ok, I found the issue. We re-wired the ESP32C3 board to bypass the on-board USB2UART (we wanted to test in a situation close to the final HW setup). We moved R1-R2 to R3-R4, as suggested here: https://esp32.com/viewtopic.php?t=21007 But we didn't remove R21 and R22 so the UART pins were still connec...
- Fri Dec 16, 2022 10:42 am
- Forum: ESP-IDF
- Topic: Using UART0 and U0TXD U0RXD as regular UART on ESP32-C3
- Replies: 4
- Views: 5472
Re: Using UART0 and U0TXD U0RXD as regular UART on ESP32-C3
This thing is really driving me crazy. I use the uart_echo example and I still can't receive any character on U0RXD/GPIO20. I see output from ROM and the "hello" string, but sending character to that pin doesn't seem to lead to any result. I also tried to use esp_rom to route that signal via GPIO ma...
- Fri Dec 16, 2022 8:10 am
- Forum: ESP-IDF
- Topic: Using UART0 and U0TXD U0RXD as regular UART on ESP32-C3
- Replies: 4
- Views: 5472
Re: Using UART0 and U0TXD U0RXD as regular UART on ESP32-C3
I did some more testing. I took the serial echo sample and leave log output only on USB Jtag/CDC. I could run it using UART 1 controller on pins MTMS/GPIO4 for TX and MTDI/GPIO5 for RX. I changed UART controller to UART 0 and it still works on the same pinout (so it doesn't seem to be an issue using...
- Thu Dec 15, 2022 4:03 pm
- Forum: ESP-IDF
- Topic: Using UART0 and U0TXD U0RXD as regular UART on ESP32-C3
- Replies: 4
- Views: 5472
Using UART0 and U0TXD U0RXD as regular UART on ESP32-C3
I need to use U0TXD and U0RXD as regular UART on ESP32-C3. For testing, I am implementing a USB-to-UART bridge, from the physical UART to the USB-CDC one. My test application is quite simple: #include <stdio.h> #include <driver/gpio.h> #include <driver/uart.h> #include <freertos/FreeRTOS.h> #define ...
- Thu Dec 15, 2022 9:47 am
- Forum: General Discussion
- Topic: ESP RF Test tool and ESP32-C3 over USB
- Replies: 5
- Views: 4733
Re: ESP RF Test tool and ESP32-C3 over USB
Thank you for the clarification, I contacted tech support.
- Thu Dec 15, 2022 8:04 am
- Forum: General Discussion
- Topic: ESP32-C3FH4AZ
- Replies: 1
- Views: 1712
ESP32-C3FH4AZ
I see this part number mentioned in the latest ESP32-C3 datasheet, but I couldn't find any description of the differences between this variant and those already available. I see from DS that SPI-flash pins are labeled as NC. From PN I suppose that flash size is 4MB, but I would like to know if there...
- Wed Dec 14, 2022 4:20 pm
- Forum: General Discussion
- Topic: ESP RF Test tool and ESP32-C3 over USB
- Replies: 5
- Views: 4733
Re: ESP RF Test tool and ESP32-C3 over USB
As an alternative, is there a low-level documented APIs that allow me to perform the same operations done by that tool?
Continous TX etc.
Continous TX etc.
- Wed Dec 14, 2022 1:34 pm
- Forum: General Discussion
- Topic: ESP RF Test tool and ESP32-C3 over USB
- Replies: 5
- Views: 4733
ESP RF Test tool and ESP32-C3 over USB
Is it possible to run the tool using the integrate USB2CDC converter of the chip, without having to connect an external port? I am testing with ESP32-C3-DevKitM-1 (rewired to route USB signals to the ESP, without using the on-board converter) and I can download the firmware, but get an access denied...
- Tue Dec 13, 2022 7:53 am
- Forum: ESP-IDF
- Topic: Use SPICLK as GPIO15 on ESP32-C3
- Replies: 5
- Views: 2563
Re: Use SPICLK as GPIO15 on ESP32-C3
Thanks a lot for the clarification.
Is this true for all the SPI interface signals, including WP, even if no external flash is connected?
Is this true for all the SPI interface signals, including WP, even if no external flash is connected?