jacob.eva/arduino-esp32
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a695187de8
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25 Commits

Author SHA1 Message Date
chuck todd
a695187de8 Correct 10bit Device address handling. 
The existing code did not follow protocol with 10bit addressed devices.  Per _Philps/NXP Semiconductors UM10204 I2C-bus specification and user manual Rev. 6 4April2014_ pg.15 3.1.11 10-bit addressing:
~The first seven bits of the first byte are the combination of 1111 0xx of which the last two bits (xx) are the two Most-Significant Bits (MSB) of the 10-bit address; the eighth bit of the first byte is the R/!W! bit the determines the direction of the message~
 2017-10-21 13:14:14 -06:00
chuck todd
7eff707ba6 Fix Early return when Address NAK is received (#750) 
The i2cWrite() function was returning to the app before the i2c transaction had completed.  This caused the next Wire() call to return a I2C_ERROR_BUSY.
 2017-10-21 08:40:53 +02:00
me-no-dev
28be506ce3 uncomment I2C debug so it can be used 2017-09-29 21:24:06 +08:00
Jason K
0cd62852da I2c reset functionality (#678) 
* Addition of a i2cReset method and timeout handling for the case where the i2c hardware FSM (state machine) gets stuck in a busy state.

* Use newly added i2cReset function within the wire library.
 2017-09-29 21:17:13 +08:00
me-no-dev
befebb7242 Change DPORT access macros 2017-05-15 20:53:09 +03:00
me-no-dev
90322ae7eb Make I2C work reliably with interrupts 
Thanks @marcmerlin and @MartyMacGyver
 2017-03-26 00:27:27 +02:00
me-no-dev
8b96b1a5f4 update IDF libs and esptool.py 
adds autoreset after firmware upload
 2017-01-05 13:54:40 +02:00
me-no-dev
668c3811b8 Wire: wait while bus is busy if ack failed 2016-12-15 01:41:54 +02:00
me-no-dev
b86fb30b1d cleanup read commands 2016-12-14 23:31:28 +02:00
me-no-dev
04e0902ca6 Wire: if we are reading only one byte, do not send empty read command 2016-12-14 18:43:32 +02:00
me-no-dev
917a4fd6f0 allow setting internal pull resistors for any mode and enable them for I2C 2016-12-14 13:11:10 +02:00
me-no-dev
c19fc061b0 Hopefully fix I2C/Wire 
Tested with (all at the same time):
- MPU9250
- HTU21
- TMP102
- BMP180
- AM2320
- SSD1306
 2016-12-14 02:41:22 +02:00
me-no-dev
8e7d00b9a8 i2c revert to old fifo write 2016-12-09 18:07:59 +02:00
Me No Dev
d1025b6b5d Update esp32-hal-i2c.c 
wait for data to be latched and increase timeout in attempt to fix clock stretch issues
Connected issues:
http://esp32.com/viewtopic.php?f=19&t=632&p=2832#p2801
https://github.com/espressif/arduino-esp32/issues/81
https://github.com/espressif/arduino-esp32/issues/53
https://github.com/espressif/arduino-esp32/issues/11
 2016-12-09 12:51:36 +02:00
Me No Dev
be2a26b3ff set SCL to OUTPUT_OPEN_DRAIN 
fixes: https://github.com/espressif/arduino-esp32/issues/69
 2016-11-25 11:25:50 +02:00
me-no-dev
c30012ab78 Add Kconfig for IDF and option to disable HAL mutexes 
IDF Options:
- Autostart Arduino (implements app_main)
- Disable HAL locks
- Set HAL debug level
- Auto-connect STA if configured (else will connect after WiFi.begin())
 2016-11-18 15:07:25 +02:00
me-no-dev
7abb15ca62 reset i2c cmd buffer before read/write 
related to [issue
53](https://github.com/espressif/arduino-esp32/issues/53)
 2016-11-17 00:46:56 +02:00
me-no-dev
9116cc4311 remove unnecessary locks 2016-10-14 03:24:20 +03:00
me-no-dev
f9f895797a return proper errors 2016-10-11 15:11:51 +03:00
me-no-dev
9ec4389889 implement thread-safe i2c 2016-10-11 14:20:02 +03:00
me-no-dev
3ecb32c4ba Prevent I2C Bus locks and wrong data being sent on retry 2016-10-10 14:54:36 +03:00
me-no-dev
45f5449fbf prevent some devices from locking the SCL line 2016-10-10 14:10:43 +03:00
me-no-dev
f3af437774 I2C SDA should properly register the ACK bit from some slaves 2016-10-10 13:53:55 +03:00
me-no-dev
cc3c55bbb1 fix i2c hal 2016-10-08 17:32:11 +03:00
me-no-dev
5f3a205955 initial import 2016-10-06 07:09:44 -06:00