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Merge branch 'bugfix/ulp_wakeup_trigger' into 'master'

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ulp: specify ulp-risc-v as done signal source

Closes IDFGH-4210

See merge request espressif/esp-idf!11970
This commit is contained in:
Angus Gratton
2021-01-27 07:59:51 +08:00
parent 8a1adf200e 19d8a403e6
commit 21f5bcd46f
1 changed files with 3 additions and 2 deletions
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5
components/ulp/ulp_riscv.c
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@@ -44,8 +44,9 @@ esp_err_t ulp_riscv_run(void)
esp_rom_delay_us(20);
/* Select RISC-V as the ULP_TIMER trigger target. */
CLEAR_PERI_REG_MASK(RTC_CNTL_COCPU_CTRL_REG, RTC_CNTL_COCPU_SEL);
/* Select ULP_TIMER sleep trigger source. 1: REG_COCPU_DONE; 0: ULP END.*/
SET_PERI_REG_MASK(RTC_CNTL_COCPU_CTRL_REG, RTC_CNTL_COCPU_DONE);
/* Select ULP-RISC-V to send the DONE signal. */
SET_PERI_REG_MASK(RTC_CNTL_COCPU_CTRL_REG, RTC_CNTL_COCPU_DONE_FORCE);
/* start ULP_TIMER */
CLEAR_PERI_REG_MASK(RTC_CNTL_ULP_CP_CTRL_REG, RTC_CNTL_ULP_CP_FORCE_START_TOP);