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driver(touch): fix bug and add more features

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1. add sens_struct.h
2. add definition of RTCCNTL and RTCIO
3. modify touch pad examples
4. update example code.
5. add comments add option in menuconfig
6. fix issue that pad index 8 and 9 are mismatched
7. add touch_pad_read_filtered() api to get value filtered by iir filter
8. modify touch pad isr func
9. Make the items in perihperal.ld in the sequence of address
10. delete Kconfig for touch pad
11. add touchpad filter APIs to adjust the filter
12. add touch_pad into index.rst
13. add touch_pad in Doxyfile
14. add touch_pad.rst
This commit is contained in:
Wangjialin
2017-07-18 19:57:28 +08:00
parent cd5cc9927b
commit 842caaab21
11 changed files with 1377 additions and 239 deletions
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71
examples/peripherals/touch_pad_read/main/tp_read_main.c
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@@ -9,24 +9,78 @@
#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/touch_pad.h"
#define TOUCH_TEST_LOOP_NUM (10)
#define TOUCH_PAD_NO_CHANGE (-1)
#define TOUCH_THRESH_NO_USE (0)
/*
Read values sensed at all available touch pads.
Print out values in a loop on a serial monitor.
Print out values in a loop on a serial monitor.
*/
static void tp_example_read_task(void *pvParameter)
{
while (1) {
uint16_t touch_value;
for (int i=0; i<TOUCH_PAD_MAX; i++) {
ESP_ERROR_CHECK(touch_pad_read(i, &touch_value));
printf("T%d:%4d ", i, touch_value);
//set reference voltage for charging/discharging
// In this case, the high reference valtage will be 2.7V - 0V = 2.7V
// The low reference voltage will be 0.5
// So the charing/discharging time would be longer, so the counter value would be smaller.
touch_pad_set_voltage(TOUCH_HVOLT_2V7, TOUCH_LVOLT_0V5, TOUCH_HVOLT_ATTEN_0V);
vTaskDelay(100 / portTICK_PERIOD_MS);
printf("Case[1], set default measure time\n");
for (int j = 0; j < TOUCH_TEST_LOOP_NUM; j++) {
for (int i = 0; i < TOUCH_PAD_MAX; i++) {
ESP_ERROR_CHECK(touch_pad_read(i, &touch_value));
printf("T%d:%5d ", i, touch_value);
}
printf("\n");
vTaskDelay(500 / portTICK_PERIOD_MS);
}
printf("\n");
vTaskDelay(500 / portTICK_PERIOD_MS);
printf("Case[2], set max measure time\n");
//set reference voltage for charging/discharging
// In this case, the high reference valtage will be 2.4V - 1.5V = 0.9V
// The low reference voltage will be 0.8
// So the charing/discharging time would be shorter, so the counter value would be larger.
touch_pad_set_voltage(TOUCH_HVOLT_2V4, TOUCH_LVOLT_0V8, TOUCH_HVOLT_ATTEN_1V5);
vTaskDelay(100 / portTICK_PERIOD_MS);
for (int j = 0; j < TOUCH_TEST_LOOP_NUM; j++) {
for (int i = 0; i < TOUCH_PAD_MAX; i++) {
ESP_ERROR_CHECK(touch_pad_read(i, &touch_value));
printf("T%d:%5d ", i, touch_value);
}
printf("\n");
vTaskDelay(500 / portTICK_PERIOD_MS);
}
touch_pad_set_voltage(TOUCH_HVOLT_2V7, TOUCH_LVOLT_0V5, TOUCH_HVOLT_ATTEN_0V);
vTaskDelay(100/portTICK_PERIOD_MS);
printf("Case[3], set differen slope for each channel\n");
for (int i = 0;i<TOUCH_PAD_MAX;i++) {
touch_pad_set_cnt_mode(i, (i % TOUCH_PAD_SLOPE_7) + 1, TOUCH_PAD_TIE_OPT_HIGH);
}
for (int j = 0; j < TOUCH_TEST_LOOP_NUM; j++) {
for (int i = 0; i < TOUCH_PAD_MAX; i++) {
ESP_ERROR_CHECK(touch_pad_read(i, &touch_value));
printf("T%d:%5d ", i, touch_value);
}
printf("\n");
vTaskDelay(500 / portTICK_PERIOD_MS);
}
for (int i = 0;i<TOUCH_PAD_MAX;i++) {
touch_pad_set_cnt_mode(i, TOUCH_PAD_SLOPE_7, TOUCH_PAD_TIE_OPT_HIGH);
}
}
}
static void tp_example_touch_pad_init()
{
for (int i = 0;i< TOUCH_PAD_MAX;i++) {
touch_pad_config(i, TOUCH_THRESH_NO_USE);
}
}
@@ -34,6 +88,7 @@ void app_main()
{
// Initialize touch pad peripheral
touch_pad_init();
tp_example_touch_pad_init();
// Start task to read values sensed by pads
xTaskCreate(&tp_example_read_task, "touch_pad_read_task", 2048, NULL, 5, NULL);