Referring to
https://docs.espressif.com/projects/esp ... -time.html
On our ESP-32-S3R8 board running @ 240 MHz CPU clock.
We can achieve a reduced boot time of around 40mS.
But as soon as we enable PSRAM in sdkconfig,
boot time increases to 480 mS
What can be done to reduce this boot time when PSRAM is enabled?
CONFIG_SPIRAM=y
CONFIG_SPIRAM_MODE_OCT=y
CONFIG_SPIRAM_FETCH_INSTRUCTIONS=y
CONFIG_SPIRAM_SPEED_80M=y
CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ_240=y
We are on ESP-IDF 5.5.0
Any pointer to reduce boot time with PSRAM enabled will be appreciated
Best Regards,
Vinay
Does PSRAM setup affect Chip Startup Time optimization
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MicroController
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Re: Does PSRAM setup affect Chip Startup Time optimization
->CONFIG_SPIRAM_FETCH_INSTRUCTIONS=y
Copying all application code from flash to PSRAM is bound to take a while.If enabled, instructions in flash will be moved into PSRAM on startup.
Re: Does PSRAM setup affect Chip Startup Time optimization
That makes sense.->CONFIG_SPIRAM_FETCH_INSTRUCTIONS=y
Copying all application code from flash to PSRAM is bound to take a while.If enabled, instructions in flash will be moved into PSRAM on startup.
Thanks for the clarification.
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