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abcc3fe6da
esp-idf/examples/peripherals/spi_master/hd_eeprom
History
David Cermak abcc3fe6da spi: fix spi eeprom example build 
Fix GNU make build error introduced in f53812d27a
2020-03-31 17:48:01 +02:00
..
components/eeprom spi: fix spi eeprom example build 2020-03-31 17:48:01 +02:00
main spi: add eeprom example 2020-03-29 12:52:29 +08:00
CMakeLists.txt spi: add eeprom example 2020-03-29 12:52:29 +08:00
Makefile spi: add eeprom example 2020-03-29 12:52:29 +08:00
README.md spi: add eeprom example 2020-03-29 12:52:29 +08:00

README.md

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.

ESP32 ESP32 ESP32S2
Host SPI1 HSPI FSPI
VCC 3.3V 3.3V 3.3V
GND GND GND GND
DO 7 18 37
DI 8 23 35
SK 6 19 36
CS 13 13 34
ORG GND GND GND

Notes

If you meet timeout issues, please check your connections.