29 Commits

Author SHA1 Message Date
chuck todd
1cf42702dd Add Hardware Reset when Initing I2C peripheral ()
This change uses the `_RST` bit of the i2c peripheral to force the hardware into power on reset state.  The prior code assumed the peripheral was already in a reset, it just cleared the reset bit.  

Chuck.
2018-04-06 19:13:59 +03:00
Me No Dev
55289a45af Update IDF to 9274814 ()
* Update IDF to 9274814

* Fix error in i2c and Arduino
2017-10-24 00:21:00 +02:00
Jason K
11565343e6 Merge branch 'master' into master 2017-10-23 14:40:33 -04:00
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
Jason K
1270f40066 Add initial handling for long I2C reads. 2017-10-21 08:26:46 -04:00
chuck todd
7eff707ba6 Fix Early return when Address NAK is received ()
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 ()
* 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