Search found 2122 matches

by ESP_Angus
Thu May 21, 2020 11:29 pm
Forum: Hardware
Topic: ESP32D2WD SPI and JTAG pin with MUX
Replies: 4
Views: 221

Re: SPI and JTAG pins MUX

Hi vlucio, You can use the GPIO Matrix to remap the SPI bus to any free GPIO pins. (This is possible for almost every peripheral in the ESP32, the JTAG & SD peripherals are the notable exceptions.) The SPI driver in the software environment you're using should give a way to set the pins on initializ...
by ESP_Angus
Thu May 21, 2020 6:38 am
Forum: ESP32 IDF
Topic: Help with components visibility
Replies: 2
Views: 127

Re: Help with components visibility

Hi Fasani, You need to add the line "REQUIRES Adafruit-GFX" or "PRIV_REQUIRES Adafruit-GFX" here: https://github.com/martinberlin/cale-idf/blob/tft_adafruit/components/CalEPD/CMakeLists.txt#L13 Can find a full explanation here: https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/b...
by ESP_Angus
Mon May 18, 2020 11:50 pm
Forum: ESP32 IDF
Topic: Error Flash Startup "flash read err, 1000"
Replies: 2
Views: 214

Re: Error Flash Startup "flash read err, 1000"

Hi _0boot_, You're right that this error is to do with the power-on time of attached flash. Apart from adding additional UART output and a short delay to the power-on start time, there is no other negative effect from this error. I can't say for certain why you only see this pattern when pressing th...
by ESP_Angus
Mon May 18, 2020 12:33 am
Forum: ESP32 IDF
Topic: ESP tool - programming flash MAC OS Catalina
Replies: 2
Views: 482

Re: ESP tool - programming flash MAC OS Catalina

Hi vsubbhiah and silikone, esptool is supported on MacOS Catalina. However, there are apparently issues with some USB to serial chip drivers on Catalina (the "Resource busy" error in this case is being returned to esptool by the OS when it tries to open the serial port.) In the case of ESP-WROVER-KI...
by ESP_Angus
Sun May 17, 2020 11:51 pm
Forum: ESP32 IDF
Topic: Is compression during flash programming just for the transfer?
Replies: 1
Views: 105

Re: Is compression during flash programming just for the transfer?

Hi jsam,

Correct, compression is just for the transfer over UART. In this case, 1495920 bytes have been written to flash.

Angus
by ESP_Angus
Fri May 15, 2020 3:53 am
Forum: General Discussion
Topic: I2C corruption when using ESP CAN (IDFGH-3307)
Replies: 12
Views: 1030

Re: I2C corruption when using ESP CAN (IDFGH-3307)

Hi Peter, I've added an ID to the topic as we're tracking this internally. I have a few questions to help us debug: - Is the ESP32 acting as the I2C master or the slave in these examples? I wasn't certain from the description so far. - Can you please give an example of the on-the-wire I2C protocol, ...
by ESP_Angus
Fri May 15, 2020 2:26 am
Forum: ESP32 IDF
Topic: CMakeList build system question
Replies: 3
Views: 628

Re: CMakeList build system question

Hi adesandr, Thanks for being patient while someone got back to you. I think the problem is here: # Additional directorie to search for components set(EXTRA_COMPONENT_DIRS "${PROJECT_DIR}/../extra_components") The PROJECT_DIR is not set as a variable in this file, it's only set as a build property (...
by ESP_Angus
Fri May 15, 2020 2:05 am
Forum: General Discussion
Topic: ESP32 DOWD interface with memory chip MX25U1635EM1I-10G
Replies: 1
Views: 420

Re: ESP32 DOWD interface with memory chip MX25U1635EM1I-10G

I am designing a project with esp32 DOWD bare chip, followed custom design. I have to interface external memory chip via SPI protocol. Do I understand correctly that this is the primary flash chip for the ESP32 (ie connected to the main SPI flash pins, not a secondary SPI bus)? Will answer assuming...
by ESP_Angus
Fri May 15, 2020 1:54 am
Forum: ESP32 IDF
Topic: ESP32 UART missing RX bits fairly frequently @ 115200 230400 921600
Replies: 10
Views: 823

Re: ESP32 UART missing RX bits fairly frequently @ 115200 230400 921600

Hi iosixllc, Further to some of the other questions, is it possible this is a crosstalk issue with the HSPI peripheral connections? What is the clock rate used by the HSPI peripheral? Where was the probe connected when tracing with the Saleae? If it is a noise problem, the limited analog bandwidthof...
by ESP_Angus
Tue May 12, 2020 3:52 am
Forum: Hardware
Topic: esp32 -S2 usb
Replies: 11
Views: 882

Re: esp32 -S2 usb

Hi chegewara, Not sure what the problem is, but I have a couple of questions/comments: which is PIN19 to white and PIN20 to green and it works on linux. The problem is that esp32 wired like this is causing my BIOS does not want to start, and when i unplug esp32 it starts. Then i let windows 10 to fi...

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