When ulp_lp_core_wakeup_main_processor() is called, it sets the
PMU_SW_INT_RAW bit on the HP side. The normal sleep path clears this
bit before re-entering sleep, but esp_wake_stub_sleep() did not, leaving
the wakeup cause sticky. This caused the PMU to immediately re-trigger a
wakeup as soon as sleep was requested from the wake stub, producing a
rapid re-wakeup loop that eventually triggered LP_WDT_SYS resets.
Add a test case that verifies the wake stub can return to sleep correctly
across multiple LP core wakeup cycles without the re-wakeup bug.
Closing https://github.com/espressif/esp-idf/issues/18308
Made-with: Cursor
This commit sets the calibration parameters for a a given LP ADC unit
and channel to improve the raw LP ADC reading when read from the LP
core. The calibration params are set from the HP core.
This is a follow up commit on top of below commit:
c061c781a3
This commit further increases the ADC_TEST_LOW_VAL threshold from 2165
to 2200, because some tests were found to be failing with ADC reading
values such as 2171, 2172, 2182 etc. Suspecting the ADC callibration or
surrounding temperature to cause such fluctuations which need higher
threshold to avoid test failures.
This commit fixes the following issues with the LP mailbox when LP core
interrupts are enabled -
1. Removed static storage classifier on the interrupt handler to remove
internal linkage and allow the linker to override the weak symbol.
2. Fixed a bug in the interrupt handler where the ACK bit interrupt was
not being cleared correctly.
3. Fixed a bug in the LP core interrupt handler where the message mask
was not being set correctly.
Closes https://github.com/espressif/esp-idf/issues/18095
The low power ADC in ESP32P4 sometimes reads the data value as 2160,
2161 or a bit greater than that when running the CI test case named
esp32p4.defaults.test_lp_core -> LP ADC 1 raw read stress test. However,
the test only passes if value stays below the LOW_VAL threshold of 2160.
Hence, updated the LOW_VAL threshold to 2165 keeping some margin,
because ADC readings may differ slightly from board to board, so this
type of small variations in ADC values are expected.
lp_core_i2c.h header file has sda and scl pins hardcoded to GPIO6 and
GPIO7 which works only for ESP32C6. ESP32C5 uses GPIO2 and GPIO3 for
I2C SDA and SCL. Hence, added LP_I2C_SCL_IO and LP_I2C_SDA_IO macros
under conditional compilation in library header file, so there is no
need to hardcode I2C GPIO pins and any other test apps or examples
that are including the LP I2C header file can also use Macro directly.
Updated the i2c read/write APIs ulp_riscv_i2c_master_read_from_device
and ulp_riscv_i2c_master_write_to_device in ulp_riscv component to
return error codes back to the application
Closes https://github.com/espressif/esp-idf/issues/15904
Moved the error logs outside critical section for i2c communication errors
like READ fail, WRITE fail etc. in the ulp_riscv_i2c component
Also changed the error log API from ESP_EARLY_LOG to ESP_LOG, so we can support
tag based filtering and enabling/disabling of logs
Closes https://github.com/espressif/esp-idf/issues/17425
