17d2041821
refactor(i2c): cleanup I2C definitions in soc_caps.h
2026-01-12 17:07:04 +08:00
c002cb67d1
fix(lp_mailbox): Fixed LP mailbox operation when LP core interrupts are enabled
...
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
2026-01-08 11:14:07 +01:00
4b02a7e320
fix(spinlock): Added fence instruction in spinlock acquire and release
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The existing spinlock mechanism possibly has an overlap of memory
operations during multi core execution, as visible in CI testing. When
running the example inter_cpu_critical_section, shared count increment
stops at 299999 instead of reaching 300000, but this only happens
randomly 1 out of 10 times. It is suspected that a memory operation
happens simultaneously from both core, even though spinlock protection
is in place.
To handle this problem, a memory barrier (fence instruction) is added
at critical places during spinlock acquire and release, to ensure that
all memory operations upto that point are completed and synchronised
before proceeding further.
2026-01-06 10:13:00 +05:30
48ba430297
change(esp_hal_rtc_timer): unify lp_timer/rtc_timer naming to RTC_TIMER
2025-12-30 11:35:36 +08:00
74aeb3f41f
refactor(uart): split UART HAL into separate component
2025-12-25 14:41:28 +08:00
e7054752ed
feat(ulp): Removes ambiguity between ticks and cycles in ULP APIs
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Closes https://github.com/espressif/esp-idf/issues/17820
2025-11-06 11:11:11 +02:00
32bb32b598
fix(ulp): fix warning in lp core I2C driver
2025-09-25 10:25:15 +08:00
324446da95
feat(mailbox): define and implement a mailbox API with hardware and software support
2025-09-25 10:25:15 +08:00
93cbfcf139
refactor(lp_core_i2c): Modify lp_core_i2c header to support ESP32C5
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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.
2025-09-15 17:30:20 +05:30
140effda53
fix(lp_core): fixed array-bound warning when compiling on P4 with -Os
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Closes https://github.com/espressif/esp-idf/issues/17054
2025-08-28 13:19:56 +08:00
6bfdc93593
feat(uart): add DTR and DSR signals support for UART
2025-08-05 16:45:46 +08:00
7024babc31
fix(lp_core): dont reset lp cpu with debug attached
2025-07-31 13:48:45 +02:00
c4d7b1cfce
refactor(uart)!: deprcated esp_rom_uart.h
2025-07-08 18:56:17 +08:00
0f45b6c6c3
change(lp-core): Update LP I2C and LP UART drivers to use raw interrupt status
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This commit updates the LP I2C and LP UART drivers to use the raw
interrupt status without enabling the interrupts.
2025-05-13 15:43:39 +02:00
692512c0b3
Merge branch 'contrib/github_pr_15717' into 'master'
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feat(ulp): LP Timer interrupt support (GitHub PR)
Closes IDFGH-15026
See merge request espressif/esp-idf!38613
2025-04-25 16:07:31 +08:00
4c3fa95c94
fix(ulp): Add missing wake up enable and disable functions for LP core
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This commit adds wrapper APIs to enable and disable LP IO as a wakeup
source for the LP Core.
Merges https://github.com/espressif/esp-idf/pull/15837
2025-04-24 11:14:12 +02:00
a9eba4058e
feat(ulp): LP Timer interrupt support
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This commit adds support for the LP Timer interrupt to be used by the LP
Core.
Merges https://github.com/espressif/esp-idf/pull/15717
2025-04-23 09:52:45 +02:00
a4d32bb460
Merge branch 'feature/esp32c5_eco2_gpio_update' into 'master'
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feat(gpio): esp32c5 eco2 gpio update
Closes IDF-12653, IDF-12710, and IO22-24
See merge request espressif/esp-idf!38358
2025-04-21 14:29:51 +08:00
ec5176e95a
fix(gpio): IO7 is not a LP IO anymore on C5 ECO2 chip
2025-04-18 19:03:08 +08:00
44983e6496
fix(ulp): Fix accumulation of wakeup cause bits in ULP
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Closes https://github.com/espressif/esp-idf/issues/15794
2025-04-18 12:14:07 +03:00
122d122c64
refactor(gpio): reuse gpio_int_type_t in the rtc io driver
2025-04-01 18:21:57 +08:00
c9cc7bb216
feat(ulp_touch): add example for lp_touch
2025-03-14 21:56:05 +08:00
ffb8adcf49
feat(ulp_touch): support ulp touch driver on p4
2025-03-14 21:10:16 +08:00
1b09bb3037
fix(uart): LP UART does not have the pre-divider for its clock source
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Closes https://github.com/espressif/esp-idf/issues/15427
2025-03-06 20:35:48 +08:00
b4f59dae9c
fix(lp_uart): Update the lp_core_uart_tx_flush() API to wait for Tx idle
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This commit updates the lp_core_uart_tx_flush() API to wait for the Tx line
to become idle, therefore confirming that all bytes are sent out.
Closes https://github.com/espressif/esp-idf/issues/15433
2025-02-28 10:40:38 +01:00
c0f98621d7
fix(examples): fix esp32c5 ulp examples
2025-02-08 16:04:49 +08:00
f742a05b28
feat: supports lp uart wakeup
2025-02-05 14:54:48 +08:00
8da529e5eb
Merge branch 'refactor/i2c_ll_trm_sync' into 'master'
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refactor(i2c): rename some LL functions according to TRM descriptions
See merge request espressif/esp-idf!35049
2024-11-22 10:13:29 +08:00
0cbcd652a3
doc(lp_vad): lp vad programming guide
2024-11-21 11:08:11 +08:00
3fb7461eb0
refactor(i2c): rename some LL functions according to TRM descriptions
2024-11-20 19:16:23 +08:00
1f1954378e
Merge branch 'feature/lp_core_gpio_wakeup' into 'master'
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feat(lp_core): added support for LP-IO as LP-core wakeup source
Closes IDF-10200
See merge request espressif/esp-idf!31828
2024-10-18 09:32:49 +08:00
1792aba1dc
feat(vad): lp vad driver and wakeup feature
2024-10-16 17:27:27 +08:00
b4c501374f
feat(lp_core): added support for LP-IO as LP-core wakeup source
2024-10-16 09:34:20 +08:00
39d6f35594
refactor(lp_core): unify LL functions of ETM wake up lp system
2024-09-26 11:48:15 +08:00
e051b921b8
Merge branch 'feat/lp_spinlock' into 'master'
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feat(ulp): implement inter-hp-lp-cpu spinlock/critical section
Closes IDF-10206
See merge request espressif/esp-idf!32775
2024-09-20 17:09:50 +08:00
564d777018
Merge branch 'feature/lp_core_40_mhz' into 'master'
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feat(system): support choosing xtal as rtc-fast clock src on P4 and C5
Closes IDF-10203
See merge request espressif/esp-idf!32450
2024-09-20 10:57:15 +08:00
446528d40f
feat(ulp): implement ulp lp core spinlock
2024-09-20 10:22:45 +08:00
00eb97725b
feat(system): support choosing xtal as rtc-fast clock src on P4 and C5
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With xtal as rtc-fast clock source the LP-Core can run at twice the default
clock frequency. 40 MHz as opposed to 20 MHz.
2024-09-19 17:30:44 +08:00
3c65f1b654
fix(lp_uart): Added lp_uart flush feature
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This commit adds the lp_core_uart_flush() API to flush the LP UART Tx
FIFO. This API is automatically called once the program returns from the
main function().
Closes https://github.com/espressif/esp-idf/issues/14530
2024-09-19 09:36:04 +02:00
6abe40e590
Merge branch 'feature/optimize_esp32p4_active_power_eco1' into 'master'
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feat(system): Optimize esp32p4 active state power consumption
Closes PM-103 and IDF-7688
See merge request espressif/esp-idf!32950
2024-09-11 23:15:29 +08:00
05e74480f5
feat(esp_system): gate some clock by default to optmize esp32p4 active power
2024-09-11 10:53:00 +08:00
1e5efd7fa7
feat(lp_adc): Added support to read LP ADC from the LP core
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This commit adds APIs to initialize and configure the LP ADC from the HP
core and also adds APIs to read the raw and converted ADC values from the LP core.
2024-09-10 08:45:11 +02:00
625c437412
feat(ulp): Add LP core debugging support
2024-09-03 18:28:14 +03:00
0dbb6d94ec
fix(ulp): Add the missing extern "C" guard to ulp_lp_core_print.h
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This commit adds the missing extern `C` guards the ulp_lp_core_print.h
header file.
Closes https://github.com/espressif/esp-idf/pull/14329
2024-08-08 23:23:08 +08:00
1216dd1abd
change(ulp): bu lp i2c on esp32c5
2024-08-01 14:48:31 +08:00
b825aa9f95
change(lp_core): changed wakeup time calc to use a precomputed tick value
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Previously we would calculate the wakeup ticks upon every wakeup using the lp-timer clock frequency,
but this caused the binary to pull in software division functions, increasing the binary size.
This value is now precalculated by the hp-core when we configure the ULP. This saves about 1k bytes.
2024-07-23 14:14:20 +08:00
692eb01fe1
fix(lp-core): fixed ULP shared mem address being wrong on P4
2024-07-23 14:12:18 +08:00
d70383422b
feat(lp-core): add reduced footprint print functions
2024-07-19 09:48:20 +08:00
74a04c140c
feat(ulp): add option for routing LP-printf to HP console
2024-07-17 17:16:40 +08:00
945a593de2
fix(lp-i2c): Fixed the generation of spurious I2C start with lp-i2c
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This commit fixes an issue with LP I2C and RTC I2C where in the
peripherals generated a spurious I2C start condition when initialized.
This caused some sensors to not respond properly to the following read
or write request.
Closes https://github.com/espressif/esp-idf/issues/14043
Closes https://github.com/espressif/esp-idf/issues/11608
2024-07-11 12:37:04 +02:00
Chen Chen
Sudeep Mohanty
Meet Patel
wuzhenghui
Song Ruo Jing
Konstantin Kondrashov
Omar Chebib
Marius Vikhammer
Samuel Obuch
morris
X-Ryl669
jath03
laokaiyao
igor.udot
Armando
Liu Xiao Yu
Alexey Gerenkov
andylinpersonal