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