espressif/ESP8266_RTOS_SDK
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bugfix(pwm): fix_pwm_wrong_comment

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Fixes https://github.com/espressif/ESP8266_RTOS_SDK/issues/439
This commit is contained in:
XiongYu
2019-01-11 11:15:05 +08:00
parent 91c7c10911
commit 3c3b15f8bc
1 changed files with 2 additions and 3 deletions
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5
components/esp8266/driver/pwm.c
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@ -274,7 +274,7 @@ static void pwm_timer_enable(uint8_t enable)
static void IRAM_ATTR pwm_timer_intr_handler(void) static void IRAM_ATTR pwm_timer_intr_handler(void)
{ {
//process continous event //process continous event
uint32_t mask = 0; uint32_t mask = REG_READ(PERIPHS_GPIO_BASEADDR + GPIO_OUT_ADDRESS);
// In the interrupt handler, first check for data updates, then switch to the updated array at the end of a cycle, start outputting new PWM waveforms, and clear the update flag. // In the interrupt handler, first check for data updates, then switch to the updated array at the end of a cycle, start outputting new PWM waveforms, and clear the update flag.
while (1) { while (1) {
@ -290,7 +290,6 @@ static void IRAM_ATTR pwm_timer_intr_handler(void)
pwm_obj->run_pwm_toggle = (pwm_obj->run_pwm_toggle ^ 0x1); pwm_obj->run_pwm_toggle = (pwm_obj->run_pwm_toggle ^ 0x1);
pwm_obj->update_done = 0; pwm_obj->update_done = 0;
} }
mask = REG_READ(PERIPHS_GPIO_BASEADDR + GPIO_OUT_ADDRESS);
mask = mask & (~pwm_obj->single->run_pwm_param[pwm_obj->single->run_channel_num - 1].io_clr_mask); mask = mask & (~pwm_obj->single->run_pwm_param[pwm_obj->single->run_channel_num - 1].io_clr_mask);
mask = mask | pwm_obj->single->run_pwm_param[pwm_obj->single->run_channel_num - 1].io_set_mask; mask = mask | pwm_obj->single->run_pwm_param[pwm_obj->single->run_channel_num - 1].io_set_mask;
REG_WRITE(PERIPHS_GPIO_BASEADDR + GPIO_OUT_ADDRESS, mask); REG_WRITE(PERIPHS_GPIO_BASEADDR + GPIO_OUT_ADDRESS, mask);
@ -316,7 +315,7 @@ static void IRAM_ATTR pwm_timer_intr_handler(void)
} }
REG_WRITE(WDEVTSFSW0_LO, 0); REG_WRITE(WDEVTSFSW0_LO, 0);
//WARNING, pwm_obj->this_target - AHEAD_TICKS1 should be bigger than 20 (https problem) //WARNING, pwm_obj->this_target - AHEAD_TICKS1 should be bigger than 2
REG_WRITE(WDEVTSF0_TIMER_LO, pwm_obj->this_target - AHEAD_TICKS1); REG_WRITE(WDEVTSF0_TIMER_LO, pwm_obj->this_target - AHEAD_TICKS1);
REG_WRITE(WDEVTSF0TIMER_ENA, WDEV_TSF0TIMER_ENA); REG_WRITE(WDEVTSF0TIMER_ENA, WDEV_TSF0TIMER_ENA);
} }