Reduce dram0_0 usage on older ESP32 boards#2497
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some older ESP32 boards were pushing the limits of the dram segment causing the linker to fail, especially for ble and wifi firmwares. lowering OFFLINE_QUEUE_SIZE reduces dram usage
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Some older ESP32 boards were failing builds due to overflowing the dram segment for BLE and wifi companion firmwares.
This PR sets
OFFLINE_QUEUE_SIZE=128for those boards to bring dram usage back to comfortable levels, and consolidatesMAX_CONTACTSback to 160 for the targets which had been lowered to 100 in the past to get them to stop overflowing the dram.I have checked that all the builds that this PR touches build successfully and have at least 10kB of dram free.
Note: you can check how much dram is in use on a working build using
xtensa-esp32-elf-size -A firmware.elf | grep dram0and adding up .dram0.data and .dram0.bss. The maximum value is around 121kB and can vary based on BT settings.