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spi: change linker file let spi hal able to out from iram

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wanlei
2023-04-03 11:01:12 +08:00
parent 40b0dbae10
commit f61e219667
5 changed files with 22 additions and 2 deletions
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docs/en/api-guides/performance/ram-usage.rst
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@@ -139,6 +139,7 @@ The following options will reduce IRAM usage of some ESP-IDF features:
:esp32: - If the application uses PSRAM and is based on ESP32 rev. 3 (ECO3), setting :ref:`CONFIG_ESP32_REV_MIN` to ``3`` will disable PSRAM bug workarounds, saving ~10kB or more of IRAM.
- Disabling :ref:`CONFIG_ESP_EVENT_POST_FROM_IRAM_ISR` prevents posting ``esp_event`` events from :ref:`iram-safe-interrupt-handlers` but will save some IRAM.
- Disabling :ref:`CONFIG_SPI_MASTER_ISR_IN_IRAM` prevents spi_master interrupts from being serviced while writing to flash, and may otherwise reduce spi_master performance, but will save some IRAM.
- Disabling :ref:`CONFIG_SPI_SLAVE_ISR_IN_IRAM` prevents spi_slave interrupts from being serviced while writing to flash, will save some IRAM.
- Setting :ref:`CONFIG_HAL_DEFAULT_ASSERTION_LEVEL` to disable assertion for HAL component will save some IRAM especially for HAL code who calls `HAL_ASSERT` a lot and resides in IRAM.
- Refer to sdkconfig menu ``Auto-detect flash chips`` and you can disable flash drivers which you don't need to save some IRAM.