Gunar Schorcht a66fef5bf5 cpu/esp_common: add bus clear for I2C on ESP32 ... On the ESP32 it is often not possible with the I2C software implementation to communicate with an AIP31068 based LCD module. Therefore, the I2C hardware implementation is enabled when the AIP31068 driver is used, but it is more buggy than stable. The timing of the two implementations seems to be almost identical. The only difference is that the hardware implementation clears the bus before each access by sending 10 clock pulses on the SCL line while SDA is LOW. Using the same mechanism during I2C initialization for the software implementation solves the communication problem with the AIP31068. The same software implementation works reliably with the AIP31068 on the ESP8266.		2021-12-06 22:02:30 +01:00
..
esp-now	esp-now: avoid explicit cast to netdev	2021-07-09 10:38:34 +02:00
esp-wifi	esp-wifi: avoid explicit cast to netdev	2021-07-09 10:38:34 +02:00
freertos	treewide: Remove excessive newlines	2021-08-13 19:50:38 +02:00
include	cpu/esp*: fix doxygen grouping warnings	2021-09-11 12:45:15 +02:00
periph	cpu/esp_common: add bus clear for I2C on ESP32	2021-12-06 22:02:30 +01:00
vendor	cpu/esp*: move some vendor/esp code to cpu/esp_common	2020-02-21 09:09:34 +01:00
doc.txt	cpu/esp_common: added for common files for ESP SoC	2018-12-27 17:28:46 +01:00
esp_events.c	esp/esp*: move common code to cpu/esp_common	2020-02-21 09:09:34 +01:00
exceptions.c	cpu/*: realign ENABLE_DEBUG	2020-10-23 00:46:26 +02:00
irq_arch.c	cpu/esp_common: implement irq_is_enabled()	2021-08-25 08:01:05 +02:00
Kconfig	treewide: model newlib as a FEATURE	2021-01-27 09:24:25 +01:00
lib_printf.c	esp8266: Download Espressif RTOS SDK as a new RIOT PKG	2021-10-23 11:13:38 +00:00
Makefile	cpu/esp8266: move esp_wifi to cpu/esp_common	2020-02-21 09:09:34 +01:00
Makefile.dep	treewide: model newlib as a FEATURE	2021-01-27 09:24:25 +01:00
Makefile.features	treewide: model newlib as a FEATURE	2021-01-27 09:24:25 +01:00
Makefile.include	Merge pull request #16911 from yarrick/esp_jtag	2021-10-26 01:24:27 +02:00
syscalls.c	cpu/esp: Suppress cppcheck errors	2021-11-25 13:08:51 +01:00
thread_arch.c	cpu/esp: Suppress cppcheck errors	2021-11-25 13:08:51 +01:00
tools.c	esp/esp*: move common code to cpu/esp_common	2020-02-21 09:09:34 +01:00