Files
esp-idf/examples/peripherals/spi_master/hd_eeprom
Frantisek Hrbata 1c92945f59 change(examples): switch examples to use a minimal build
Currently, several example dependencies rely on the fact that all
registered components are added to the build, along with components
specified in common requirements. This results in longer build times
because even unused components must be built. Switch all examples to use
idf_minimal_build to compile only the components actually required by
the example.

Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
2024-11-20 20:14:40 +01:00
..

Supported Targets ESP32 ESP32-C2 ESP32-C3 ESP32-C5 ESP32-C6 ESP32-C61 ESP32-H2 ESP32-P4 ESP32-S2 ESP32-S3

SPI master half duplex EEPROM example

This code demonstrates how to use the SPI master half duplex mode to read/write a AT93C46D EEPROM (8-bit mode). There is also an Kconfig option EXAMPLE_USE_SPI1_PINS allowing use the SPI1 (bus with code Flash connected on official modules).

Connections

For different chip and host used, the connections may be different. Here show a example diagram of hardware connection, you can freely change the GPIO defined in start of main/spi_eeprom_main.c and change the hardware relatively.

ESP32
Host SPI1
VCC 3.3V
GND GND
DO 7
DI 8
SK 6
CS 13
ORG GND

Notes

If you meet timeout issues, please check your connections.