cpu/esp32: fix 6LoWPAN over BLE issue for ESP32-C3#21988
Merged
benpicco merged 1 commit intoRIOT-OS:masterfrom Jan 14, 2026
Merged
cpu/esp32: fix 6LoWPAN over BLE issue for ESP32-C3#21988benpicco merged 1 commit intoRIOT-OS:masterfrom
benpicco merged 1 commit intoRIOT-OS:masterfrom
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A number of symbols of BLE PHY that have to be used from ROM to ensure that they can be called when the SPI Flash cache is disabled were placed in IROM. Adding an additional ld script solves this issue.
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Platform: ESP
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Type: bug
benpicco
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Jan 13, 2026
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Contribution description
This PR fixes the issue 6LoWPAN over BLE issue for ESP32-C3 described in issue #19319.
A number of symbols of the BLE PHY that have to be used from ROM to ensure that they can be called when the SPI Flash cache is disabled were placed in IROM by mistake. Adding an additional ld script solves this issue.
Testing procedure
Compile and flash the boarder router example with BLE downlink on any ESP32-C3 board, for example:
Without the PR the example will crash shortly after connecting to the WiFi AP. With the PR, the example should work as expected.
Issues/PRs references
Fixes #19319