Search found 5 matches

by skteh76
Fri May 08, 2020 8:02 am
Forum: Hardware
Topic: ESP32-WROVER-B SD card access in SPI mode with the SPI pinout for the SPI Flash and PSRAM
Replies: 3
Views: 5649

Re: ESP32-WROVER-B SD card access in SPI mode with the SPI pinout for the SPI Flash and PSRAM

Hello WiFive and ESP_igrr, thank for the respond.
I think I will think for another way to access the sd card instead of SPI1.
by skteh76
Wed May 06, 2020 7:47 am
Forum: Hardware
Topic: ESP32-WROVER-B SD card access in SPI mode with the SPI pinout for the SPI Flash and PSRAM
Replies: 3
Views: 5649

ESP32-WROVER-B SD card access in SPI mode with the SPI pinout for the SPI Flash and PSRAM

Hi,

Is it possible to use the SPI that connected with the SPI Flash and PSRAM in ESP32-WROVER to connect to external SD card and accessing it in SPI mode?
QQ截图20200506154611.png
QQ截图20200506154611.png (36.14 KiB) Viewed 5649 times
by skteh76
Wed May 06, 2020 7:09 am
Forum: Hardware
Topic: ESP32 input only used as UART RX
Replies: 2
Views: 3522

Re: ESP32 input only used as UART RX

ESP_Sprite wrote:
Tue May 05, 2020 8:58 pm
Yes.
Thank you ESP_Sprite
by skteh76
Tue May 05, 2020 1:54 pm
Forum: Hardware
Topic: ESP32 input only used as UART RX
Replies: 2
Views: 3522

ESP32 input only used as UART RX

Hi,

Recently I'm working on a project using ESP32-WROVER-B module.
I'm running out I/O as included the RMII ethernet phy.
I'm wondering if those input only GPIO (IO34 and above in ESP32) can be configured as UART RX pin.
Hope someone can enlighten me.

Thank you,
by skteh76
Sun Feb 02, 2020 1:03 pm
Forum: ESP-IDF
Topic: KSZ8863RLL Switch & ESP-32
Replies: 2
Views: 5971

Re: KSZ8863RLL Switch & ESP-32

Hello krajaan, Currently I'm working with KSZ8863RLL as Ethernet switch with ESP32 too. Previously, I have used LAN8720A as Ethernet Phy and the clocking is following the reference design provided by sautter https://sautter.com/blog/ethernet-on-esp32-using-lan8720/ The design is using external oscil...