1. add PCNT module in periph_ctrl.c/.h 2. add description of PCNT status in pcnt_struct.h 3. add PCNT driver code 4. add PCNT example code.
172 lines
11 KiB
C
172 lines
11 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
|
||
//
|
||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||
// you may not use this file except in compliance with the License.
|
||
// You may obtain a copy of the License at
|
||
|
||
// http://www.apache.org/licenses/LICENSE-2.0
|
||
//
|
||
// Unless required by applicable law or agreed to in writing, software
|
||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
// See the License for the specific language governing permissions and
|
||
// limitations under the License.
|
||
#ifndef _SOC_PCNT_STRUCT_H_
|
||
#define _SOC_PCNT_STRUCT_H_
|
||
typedef volatile struct {
|
||
struct{
|
||
union {
|
||
struct {
|
||
uint32_t filter_thres: 10; /*This register is used to filter pulse whose width is smaller than this value for unit0.*/
|
||
uint32_t filter_en: 1; /*This is the enable bit for filtering input signals for unit0.*/
|
||
uint32_t thr_zero_en: 1; /*This is the enable bit for comparing unit0's count with 0 value.*/
|
||
uint32_t thr_h_lim_en: 1; /*This is the enable bit for comparing unit0's count with thr_h_lim value.*/
|
||
uint32_t thr_l_lim_en: 1; /*This is the enable bit for comparing unit0's count with thr_l_lim value.*/
|
||
uint32_t thr_thres0_en: 1; /*This is the enable bit for comparing unit0's count with thres0 value.*/
|
||
uint32_t thr_thres1_en: 1; /*This is the enable bit for comparing unit0's count with thres1 value .*/
|
||
uint32_t ch0_neg_mode: 2; /*This register is used to control the mode of channel0's input neg-edge signal for unit0. 2'd1:increase at the negedge of input signal 2'd2:decrease at the negedge of input signal others:forbidden*/
|
||
uint32_t ch0_pos_mode: 2; /*This register is used to control the mode of channel0's input pos-edge signal for unit0. 2'd1:increase at the posedge of input signal 2'd2:decrease at the posedge of input signal others:forbidden*/
|
||
uint32_t ch0_hctrl_mode: 2; /*This register is used to control the mode of channel0's high control signal for unit0. 2'd0:increase when control signal is low 2'd1:decrease when control signal is high others:forbidden*/
|
||
uint32_t ch0_lctrl_mode: 2; /*This register is used to control the mode of channel0's low control signal for unit0. 2'd0:increase when control signal is low 2'd1:decrease when control signal is high others:forbidden*/
|
||
uint32_t ch1_neg_mode: 2; /*This register is used to control the mode of channel1's input neg-edge signal for unit0. 2'd1:increase at the negedge of input signal 2'd2:decrease at the negedge of input signal others:forbidden*/
|
||
uint32_t ch1_pos_mode: 2; /*This register is used to control the mode of channel1's input pos-edge signal for unit0. 2'd1:increase at the posedge of input signal 2'd2:decrease at the posedge of input signal others:forbidden*/
|
||
uint32_t ch1_hctrl_mode: 2; /*This register is used to control the mode of channel1's high control signal for unit0. 2'd0:increase when control signal is low 2'd1:decrease when control signal is high others:forbidden*/
|
||
uint32_t ch1_lctrl_mode: 2; /*This register is used to control the mode of channel1's low control signal for unit0. 2'd0:increase when control signal is low 2'd1:decrease when control signal is high others:forbidden*/
|
||
};
|
||
uint32_t val;
|
||
} conf0;
|
||
union {
|
||
struct {
|
||
uint32_t cnt_thres0:16; /*This register is used to configure thres0 value for unit0.*/
|
||
uint32_t cnt_thres1:16; /*This register is used to configure thres1 value for unit0.*/
|
||
};
|
||
uint32_t val;
|
||
} conf1;
|
||
union {
|
||
struct {
|
||
uint32_t cnt_h_lim:16; /*This register is used to configure thr_h_lim value for unit0.*/
|
||
uint32_t cnt_l_lim:16; /*This register is used to configure thr_l_lim value for unit0.*/
|
||
};
|
||
uint32_t val;
|
||
} conf2;
|
||
} conf_unit[8];
|
||
union {
|
||
struct {
|
||
uint32_t cnt_val : 16; /*This register stores the current pulse count value for unit0.*/
|
||
uint32_t reserved16: 16;
|
||
};
|
||
uint32_t val;
|
||
} cnt_unit[8];
|
||
union {
|
||
struct {
|
||
uint32_t cnt_thr_event_u0: 1; /*This is the interrupt raw bit for channel0 event.*/
|
||
uint32_t cnt_thr_event_u1: 1; /*This is the interrupt raw bit for channel1 event.*/
|
||
uint32_t cnt_thr_event_u2: 1; /*This is the interrupt raw bit for channel2 event.*/
|
||
uint32_t cnt_thr_event_u3: 1; /*This is the interrupt raw bit for channel3 event.*/
|
||
uint32_t cnt_thr_event_u4: 1; /*This is the interrupt raw bit for channel4 event.*/
|
||
uint32_t cnt_thr_event_u5: 1; /*This is the interrupt raw bit for channel5 event.*/
|
||
uint32_t cnt_thr_event_u6: 1; /*This is the interrupt raw bit for channel6 event.*/
|
||
uint32_t cnt_thr_event_u7: 1; /*This is the interrupt raw bit for channel7 event.*/
|
||
uint32_t reserved8: 24;
|
||
};
|
||
uint32_t val;
|
||
} int_raw;
|
||
union {
|
||
struct {
|
||
uint32_t cnt_thr_event_u0: 1; /*This is the interrupt status bit for channel0 event.*/
|
||
uint32_t cnt_thr_event_u1: 1; /*This is the interrupt status bit for channel1 event.*/
|
||
uint32_t cnt_thr_event_u2: 1; /*This is the interrupt status bit for channel2 event.*/
|
||
uint32_t cnt_thr_event_u3: 1; /*This is the interrupt status bit for channel3 event.*/
|
||
uint32_t cnt_thr_event_u4: 1; /*This is the interrupt status bit for channel4 event.*/
|
||
uint32_t cnt_thr_event_u5: 1; /*This is the interrupt status bit for channel5 event.*/
|
||
uint32_t cnt_thr_event_u6: 1; /*This is the interrupt status bit for channel6 event.*/
|
||
uint32_t cnt_thr_event_u7: 1; /*This is the interrupt status bit for channel7 event.*/
|
||
uint32_t reserved8: 24;
|
||
};
|
||
uint32_t val;
|
||
} int_st;
|
||
union {
|
||
struct {
|
||
uint32_t cnt_thr_event_u0: 1; /*This is the interrupt enable bit for channel0 event.*/
|
||
uint32_t cnt_thr_event_u1: 1; /*This is the interrupt enable bit for channel1 event.*/
|
||
uint32_t cnt_thr_event_u2: 1; /*This is the interrupt enable bit for channel2 event.*/
|
||
uint32_t cnt_thr_event_u3: 1; /*This is the interrupt enable bit for channel3 event.*/
|
||
uint32_t cnt_thr_event_u4: 1; /*This is the interrupt enable bit for channel4 event.*/
|
||
uint32_t cnt_thr_event_u5: 1; /*This is the interrupt enable bit for channel5 event.*/
|
||
uint32_t cnt_thr_event_u6: 1; /*This is the interrupt enable bit for channel6 event.*/
|
||
uint32_t cnt_thr_event_u7: 1; /*This is the interrupt enable bit for channel7 event.*/
|
||
uint32_t reserved8: 24;
|
||
};
|
||
uint32_t val;
|
||
} int_ena;
|
||
union {
|
||
struct {
|
||
uint32_t cnt_thr_event_u0: 1; /*Set this bit to clear channel0 event interrupt.*/
|
||
uint32_t cnt_thr_event_u1: 1; /*Set this bit to clear channel1 event interrupt.*/
|
||
uint32_t cnt_thr_event_u2: 1; /*Set this bit to clear channel2 event interrupt.*/
|
||
uint32_t cnt_thr_event_u3: 1; /*Set this bit to clear channel3 event interrupt.*/
|
||
uint32_t cnt_thr_event_u4: 1; /*Set this bit to clear channel4 event interrupt.*/
|
||
uint32_t cnt_thr_event_u5: 1; /*Set this bit to clear channel5 event interrupt.*/
|
||
uint32_t cnt_thr_event_u6: 1; /*Set this bit to clear channel6 event interrupt.*/
|
||
uint32_t cnt_thr_event_u7: 1; /*Set this bit to clear channel7 event interrupt.*/
|
||
uint32_t reserved8: 24;
|
||
};
|
||
uint32_t val;
|
||
} int_clr;
|
||
union {
|
||
struct {
|
||
uint32_t cnt_mode:2; /*0: positive value to zero; 1: negative value to zero; 2: counter value negative ; 3: counter value positive*/
|
||
uint32_t thres1_lat:1; /* counter value equals to thresh1*/
|
||
uint32_t thres0_lat:1; /* counter value equals to thresh0*/
|
||
uint32_t l_lim_lat:1; /* counter value reaches h_lim*/
|
||
uint32_t h_lim_lat:1; /* counter value reaches l_lim*/
|
||
uint32_t zero_lat:1; /* counter value equals zero*/
|
||
uint32_t reserved7:25;
|
||
};
|
||
uint32_t val;
|
||
} status_unit[8];
|
||
union {
|
||
struct {
|
||
uint32_t cnt_rst_u0: 1; /*Set this bit to clear unit0's counter.*/
|
||
uint32_t cnt_pause_u0: 1; /*Set this bit to pause unit0's counter.*/
|
||
uint32_t cnt_rst_u1: 1; /*Set this bit to clear unit1's counter.*/
|
||
uint32_t cnt_pause_u1: 1; /*Set this bit to pause unit1's counter.*/
|
||
uint32_t cnt_rst_u2: 1; /*Set this bit to clear unit2's counter.*/
|
||
uint32_t cnt_pause_u2: 1; /*Set this bit to pause unit2's counter.*/
|
||
uint32_t cnt_rst_u3: 1; /*Set this bit to clear unit3's counter.*/
|
||
uint32_t cnt_pause_u3: 1; /*Set this bit to pause unit3's counter.*/
|
||
uint32_t cnt_rst_u4: 1; /*Set this bit to clear unit4's counter.*/
|
||
uint32_t cnt_pause_u4: 1; /*Set this bit to pause unit4's counter.*/
|
||
uint32_t cnt_rst_u5: 1; /*Set this bit to clear unit5's counter.*/
|
||
uint32_t cnt_pause_u5: 1; /*Set this bit to pause unit5's counter.*/
|
||
uint32_t cnt_rst_u6: 1; /*Set this bit to clear unit6's counter.*/
|
||
uint32_t cnt_pause_u6: 1; /*Set this bit to pause unit6's counter.*/
|
||
uint32_t cnt_rst_u7: 1; /*Set this bit to clear unit7's counter.*/
|
||
uint32_t cnt_pause_u7: 1; /*Set this bit to pause unit7's counter.*/
|
||
uint32_t clk_en: 1;
|
||
uint32_t reserved17: 15;
|
||
};
|
||
uint32_t val;
|
||
} ctrl;
|
||
uint32_t reserved_b4;
|
||
uint32_t reserved_b8;
|
||
uint32_t reserved_bc;
|
||
uint32_t reserved_c0;
|
||
uint32_t reserved_c4;
|
||
uint32_t reserved_c8;
|
||
uint32_t reserved_cc;
|
||
uint32_t reserved_d0;
|
||
uint32_t reserved_d4;
|
||
uint32_t reserved_d8;
|
||
uint32_t reserved_dc;
|
||
uint32_t reserved_e0;
|
||
uint32_t reserved_e4;
|
||
uint32_t reserved_e8;
|
||
uint32_t reserved_ec;
|
||
uint32_t reserved_f0;
|
||
uint32_t reserved_f4;
|
||
uint32_t reserved_f8;
|
||
uint32_t date; /**/
|
||
} pcnt_dev_t;
|
||
extern pcnt_dev_t PCNT;
|
||
#endif /* _SOC_PCNT_STRUCT_H_ */
|