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Zephyr Support Status · Developer Portal

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[oscalcmen]

Hello,
I have issues running BLE applications on C6 using Zephyr, I was able to compile adding CONFIG_FLASH and CONFIG_FLASH_MAP. The error happens when the application is running, the LOG report indicates a
Send packet time out error (bt_hci_driver_esp32)
Unable to send to driver (bt_hci_core) the data/command is 0x1003 status 0x1F
Zephyr logs at the bluetooth init failed (err -5)
Is this an error due to a missing configuration for the C6, the application runs OK on C3 and S3.
Regards

[rftafas]

Please, add this question to the outlets mentioned on the start of this page. Thank you!

[oscalcmen]

Hello is there any guide on using ULP in ESP32C6?
I'm looking at the ULP samples adding the LP-GPIO part but I got errors in the include files as shown below. First how I did the change, then the errors when building the application.

#include <stdio.h>
#include "ulp_lp_core_utils.h"
#include "ulp_lp_core_interrupts.h"
#include "ulp_lp_core_gpio.h"
volatile uint32_t lp_core_pmu_intr_count, out_state = 0;

void ulp_lp_core_lp_pmu_intr_handler(void) {
out_state ^= 0x01;
ulp_lp_core_sw_intr_clear();
lp_core_pmu_intr_count++;
printf("LP PMU interrupt received: %d\n", lp_core_pmu_intr_count);
ulp_lp_core_gpio_set_level(LP_IO_NUM_5, out_state);
}

int main(void) {
lp_core_pmu_intr_count = 0;
ulp_lp_core_intr_enable();
ulp_lp_core_sw_intr_enable(true);

rtc_gpio_init(LP_IO_NUM_5);
ulp_lp_core_gpio_init(LP_IO_NUM_5);
ulp_lp_core_gpio_input_enable(LP_IO_NUM_5);
ulp_lp_core_gpio_output_enable(LP_IO_NUM_5);

return 0;

}

In file included from /home/oscalcmen/workspace/Zephyr/ESP32/ulp/lp_core/interrupt_ulp/remote/src/main.c:16:
/home/oscalcmen/zephyrproject/modules/hal/espressif/zephyr/esp32c6/../../components/ulp/lp_core/lp_core/include/ulp_lp_core_gpio.h: In function 'ulp_lp_core_gpio_init':
/home/oscalcmen/zephyrproject/modules/hal/espressif/zephyr/esp32c6/../../components/ulp/lp_core/lp_core/include/ulp_lp_core_gpio.h:60:5: warning: implicit declaration of function '_rtcio_ll_enable_io_clock'; did you mean 'rtcio_ll_enable_io_clock'? [-Wimplicit-function-declaration]
60 | _rtcio_ll_enable_io_clock(true);
| ^~~~~~~~~~~~~~~~~~~~~~~~~
| rtcio_ll_enable_io_clock
/home/oscalcmen/zephyrproject/modules/hal/espressif/zephyr/esp32c6/../../components/ulp/lp_core/lp_core/include/ulp_lp_core_gpio.h:62:41: error: 'RTCIO_LL_FUNC_RTC' undeclared (first use in this function); did you mean 'RTCIO_FUNC_RTC'?
62 | rtcio_ll_function_select(lp_io_num, RTCIO_LL_FUNC_RTC);
| ^~~~~~~~~~~~~~~~~
| RTCIO_FUNC_RTC
/home/oscalcmen/zephyrproject/modules/hal/espressif/zephyr/esp32c6/../../components/ulp/lp_core/lp_core/include/ulp_lp_core_gpio.h:62:41: note: each undeclared identifier is reported only once for each function it appears in
[16/132] Building C object zephyr/CMakeFiles/zephyr.dir/lib/os/cbprintf_packaged.c.obj
ninja: build stopped: subcommand failed.
[13/24] Completed 'mcuboot'
FAILED: _sysbuild/interrupt_ulp_lpcore-prefix/src/interrupt_ulp_lpcore-stamp/interrupt_ulp_lpcore-build /home/oscalcmen/workspace/Zephyr/ESP32/ulp/lp_core/interrupt_ulp/build/_sysbuild/interrupt_ulp_lpcore-prefix/src/interrupt_ulp_lpcore-stamp/interrupt_ulp_lpcore-build
cd /home/oscalcmen/workspace/Zephyr/ESP32/ulp/lp_core/interrupt_ulp/build/interrupt_ulp_lpcore && /usr/bin/cmake --build .
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: /usr/bin/cmake --build /home/oscalcmen/workspace/Zephyr/ESP32/ulp/lp_core/interrupt_ulp/build

[rftafas]

Same suggestion above.