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esp-idf/components/esp_psram
History
Mahavir Jain e16593ebc0 fix(esp_psram): fix unused-but-set-variable warning with GCC 16 
GCC 16 flags the volatile accumulator in the cache writeback loops even
though it is volatile, as it is only used to update itself. Drop the
accumulator and rely on the volatile-qualified psram pointer to keep
the cache-line reads from being optimized out.
2026-07-02 07:55:14 +05:30
..
device
fix(esp_hw_support): fix esp32s31 mpll initialization
2026-06-25 12:20:57 +08:00
esp32
fix(esp_psram): fix unused-but-set-variable warning with GCC 16
2026-07-02 07:55:14 +05:30
esp32c5
feat(mspi): supported psram & flash 120MHz timing tuning
2025-10-28 09:52:36 +08:00
esp32c61
feat(mspi): support 120MHz flash and psram for esp32c61
2026-01-21 14:38:04 +08:00
esp32h4
fix(clk): update H4 to use 64MHz clock for mspi
2026-01-04 14:07:01 +08:00
esp32p4
change(psram): use 200M as default
2025-11-17 16:25:57 +08:00
esp32s2
feat(psram): allow PSRAM to enter halfsleep mode during light sleep
2026-02-28 22:33:34 +08:00
esp32s3
esp_psram: Downgrade "not found" to a warning if "ignore not found" set.
2026-06-10 15:15:47 +08:00
esp32s31
feat(ldo): support s31 psram sdmmc power domain
2026-05-21 09:09:14 +08:00
include
Merge branch 'feat/spiram_enc_exempt' into 'master'
2026-05-21 11:36:58 +05:30
system_layer
fix(esp_psram): repeated call to init should return invalid state error
2026-06-18 12:42:38 +09:00
test_apps
fix(esp_psram): repeated call to init should return invalid state error
2026-06-18 12:42:38 +09:00
xip_impl
refactor(global): remove completed todos in the codebase
2025-12-15 22:40:15 +08:00
CMakeLists.txt
feat(ldo): support s31 psram sdmmc power domain
2026-05-21 09:09:14 +08:00
Kconfig
feature: add ram loadable app support
2023-02-01 17:57:22 +08:00
Kconfig.spiram.common
docs(esp_psram): clarify carve-out location is at upper end of PSRAM
2026-05-20 10:28:17 +05:30
linker.lf
feat(ldo): support s31 psram sdmmc power domain
2026-05-21 09:09:14 +08:00
project_include.cmake
feat(build): propagate compiler flags from files to toolchain.cmake
2025-11-14 21:04:54 +07:00
README.md
feat(mspi): supported mspi flash and psram isr
2025-12-26 01:04:45 +00:00
sdkconfig.rename.esp32s2
psram: remove CS/CLK pin settings in kconfig on ESP32S2/S3
2022-11-11 16:40:46 +08:00
sdkconfig.rename.esp32s3
psram: remove CS/CLK pin settings in kconfig on ESP32S2/S3
2022-11-11 16:40:46 +08:00

README.md

PSRAM MSPI Interrupt Handling

Overview

This file (system_layer/esp_psram_mspi.c) handles PSRAM-specific MSPI interrupt registration.

Chip Type MSPI_LL_INTR_SHARED Behavior
Shared IRQ 1 Register to shared MSPI dispatcher
Separate IRQ 0 Register standalone PSRAM ISR via esp_intr_alloc()

Documentation

For detailed architecture, flow diagrams, and API reference, see:

esp_hw_support/README.md - MSPI Interrupt Logic