alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-09-30 19:19:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

clk_tree: prework of introducing clk subsystem control

Browse Source 
1. Clean up clk usage in IDF, replace rtc_clk_xtal/apb_freq_get with
   upper level API esp_clk_xtal/apb_freq
2. Fix small errors and wrong comments related to clock
3. Add clk_tree_defs.h to provide an unified clock id for each chip
   Modify the NGed drivers to adopt new clock ids
This commit is contained in:
songruo
2022-03-25 18:41:25 +08:00
parent 199d72c19c
commit 60bb5c913d
60 changed files with 921 additions and 175 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
examples/peripherals/mcpwm/mcpwm_capture_hc_sr04/main/mcpwm_capture_hc_sr04.c
View File

@@ -18,7 +18,7 @@
#include "freertos/queue.h"
#include "esp_log.h"
#include "esp_check.h"
#include "soc/rtc.h"
#include "esp_private/esp_clk.h"
#include "driver/mcpwm.h"
const static char *TAG = "hc-sr04";
@@ -121,7 +121,7 @@ void app_main(void) {
uint32_t pulse_count;
// block and wait for new measurement
xQueueReceive(cap_queue, &pulse_count, portMAX_DELAY);
uint32_t pulse_width_us = pulse_count * (1000000.0 / rtc_clk_apb_freq_get());
uint32_t pulse_width_us = pulse_count * (1000000.0 / esp_clk_apb_freq());
// following formula is based on: https://www.elecrow.com/download/HC_SR04%20Datasheet.pdf
if (pulse_width_us > 35000) {
// out of range