RT-Thread-packages/esp-idf @ v4.2.3

michael fdf983e0c4 spi: fix config break and reduce overhead of the bus lock on SPI1		vor 5 Jahren
..
components	abcc3fe6da spi: fix spi eeprom example build	vor 5 Jahren
main	fdf983e0c4 spi: fix config break and reduce overhead of the bus lock on SPI1	vor 5 Jahren
CMakeLists.txt	f53812d27a spi: add eeprom example	vor 5 Jahren
Makefile	f53812d27a spi: add eeprom example	vor 5 Jahren
README.md	f53812d27a spi: add eeprom example	vor 5 Jahren

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.

README.md

SPI master half duplex EEPROM example

Connections

Notes