This issue is reported from https://github.com/espressif/esp-idf/issues/304.
We found that when we operate the hw command registers in I2C struct, sometimes the behaviour would be different in DEBUG/RELEASE optimisation level:
The code looks like this:
I2C[i2c_num]->command[p_i2c->cmd_idx].byte_num -= 0;
In DEBUG configuration:
I2C[i2c_num]->command[p_i2c->cmd_idx].byte_num -= 0;
400f3ab0: 3388 l32i.n a8, a3, 12
400f3ab2: 14c882 addi a8, a8, 20
400f3ab5: a08840 addx4 a8, a8, a4
400f3ab8: 0020c0 memw
400f3abb: 2898 l32i.n a9, a8, 8
400f3abd: 0020c0 memw
400f3ac0: 28b8 l32i.n a11, a8, 8
400f3ac2: 74a090 extui a10, a9, 0, 8
400f3ac5: 00af92 movi a9, 0xffffff00
400f3ac8: 109b90 and a9, a11, a9
400f3acb: 2099a0 or a9, a9, a10
400f3ace: 0020c0 memw
400f3ad1: 2899 s32i.n a9, a8, 8
In RELEASE configuration:
I2C[i2c_num]->command[p_i2c->cmd_idx].byte_num -= 0;
400f2ba2: 580572 l8ui a7, a5, 88
400f2ba5: 747070 extui a7, a7, 0, 8
400f2ba8: 0020c0 memw
400f2bab: 584572 s8i a7, a5, 88
Looks like the compiler will make it a 8bit operation after optimisation.
But the register value changes from 0x901 to 0x101.
After this 8-bit optimisation, the 11th bit changed from 1 to zero, which caused this error.
We are still trying to find out why that happens, because there might be some risk when operating the register struct.
This is a workaround to avoid "-=" operation on I2C register struct fields.
esp32: update wifi lib for some bugfix/features
1. add options to disable nvs
2. add station keepalive with softap
3. fix beacon rx start time not accurate issue
4. set wifi rx desc/buffer boundary check to internal memory boundary
See merge request !578
Expand 'make monitor' support
New 'make monitor' idf_monitor tool for better monitor output. Running 'make monitor' will now:
* Automatically look up code addresses via addr2line and print function, source file, line number in terminal.
* Can reset the ESP32 by typing Ctrl-T Ctrl-R.
* Can run "make flash" by typing Ctrl-T Ctrl-F.
* Can run "make app-flash" by typing Ctrl-T Ctrl-A.
* If gdb stub starts, monitor will automatically run gdb and connect. When gdb exits, ESP32 resets and monitor resumes.
* Exit is still Ctrl-[
Have some more features I'd like to add (log output to file, crash dump support) but I think this is at the point of being useful.
See merge request !565
Bugfix/mdns security issues
Fixes a series of security issues with MDNS.
STACK-SMASH: dd3f18d2d8/components/mdns/mdns.c (L494):
The sprintf is not limited. We can execute the sprintf codeflow as
many times as we want, allowing arbitrary long data being written
into stack.
PACKET-OF-DEATH:
dd3f18d2d8/components/mdns/mdns.c (L502).
The compare allows equal, and thus jumping back to it self infinite
recursion -> guaranteed crash
TXT-SMASH: dd3f18d2d8/components/mdns/mdns.c (L1381)
The loop does not check on reaching a->txt maximum size (1024),
resulting in stack overflow.
See merge request !576
make: don’t override TEST_COMPONENTS
When idf_monitor is launched from make, it gets modified `TEST_COMPONENTS`
variable which contains full paths to the test components instead of the
names. This causes `TEST_COMPONENT_PATHS` to be empty and the unit test
app gets built without any test components.
This change introduces an internal `TEST_COMPONENTS_LIST` variable which
gets set either from `COMPONENTS` if `TESTS_ALL` is 1, or from
`TEST_COMOPONENTS` otherwise.
Bootloader makefile is also fixed to avoid propagating `TESTS_ALL` to the
bootloader build step.
See merge request !569
bug fix: fix uart data bug when stop-bit is set as 2-bit mode
This is a workaround for a hardware bug.
When we want to use 2-stop-bit mode, we need to set stop-bit-1 and set dl1_en in rs485 register.
See merge request !544
1. add options to disable nvs
2. add station keepalive with softap
3. fix beacon rx start time not accurate issue
4. set wifi rx desc/buffer boundary check to internal memory boundary
Fix unit test app to print tests in the same order they are given in test file
This fixes the unit test app to print test cases in the same order they are given in test file.
See merge request !460
When idf_monitor is launched from make, it gets modified TEST_COMPONENTS
variable which contains full paths to the test components instead of the
names. This causes TEST_COMPONENT_PATHS to be empty and the unit test
app gets built without any test components.
This change introduces an internal TEST_COMPONENTS_LIST variable which
gets set either from $(COMPONENTS) if TESTS_ALL is 1, and from
TEST_COMOPONENTS otherwise.
Bootloader makefile is also fixed to avoid propagating TESTS_ALL to the
bootloader build step.
bt component: fix bluetooth gatt packets process bugs
1. Add process of prepare write request packets
2. Add process of execute write request packets
3. Add process of reliable write request packets
4. Fix bug of processing read blob request packets
5. Fix bug of processing write request packets
6. Optimize error check and process in stack
See merge request !558
unit tests: Make UnitTestParser ignore non-directories inside 'components' dirs
Tiny fix to UnitTestParser script behaviour, if you happen to have any stray files in your "components" directories.
See merge request !561
add wakeup from touch sensor, and deep sleep example
- add new deep sleep wakeup mode
- change documentation to explain incompatibilities between different wakeup mode, add error checks
- add new ULP instructions necessary for ULP wakeup scenario
- fix issues with I_WR_REG, I_SLEEP, I_END instructions
- add deep sleep example, illustrating the use of timer, gpio, touch, and ULP wakeup triggers
See merge request !461
add extra check before bluedroid init and disable
add extra check before bluedroid init and disable to avoid the mixed call cause unexpected errors.
See merge request !553
component/bt: optimize stack size of Bluetooth Tasks and make them be configurab…
Bluetooth tasks' stack size are optimized and can be configured by the CONFIG_NEWLIB_NANO_FORMAT option.
See merge request !559
Examples on using capacitive touch sensors
- `touch_pad_read` - read sensor values and show on terminal
- `touch_pad_interrupt` - perform simple calibration; trigger an interrupt when any pad is touched
See merge request !530
