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Merge branch 'driver_merge_tmp/merge_pcnt' into 'master'

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driver: PCNT

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.

See merge request !229
This commit is contained in:
Wang Jia Lin
2016-11-25 00:41:16 +08:00
parent 5eb2d16acd f97f198c9d
commit 35ae2cd1a5
12 changed files with 998 additions and 1 deletions
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30
components/esp32/include/soc/pcnt_reg.h
View File

@@ -1319,6 +1319,36 @@
#define PCNT_CORE_STATUS_U0_M ((PCNT_CORE_STATUS_U0_V)<<(PCNT_CORE_STATUS_U0_S))
#define PCNT_CORE_STATUS_U0_V 0xFFFFFFFF
#define PCNT_CORE_STATUS_U0_S 0
/*0: positive value to zero; 1: negative value to zero; 2: counter value negative ; 3: counter value positive*/
#define PCNT_STATUS_CNT_MODE 0x3
#define PCNT_STATUS_CNT_MODE_M ((PCNT_STATUS_CNT_MODE_V)<<(PCNT_STATUS_CNT_MODE_S))
#define PCNT_STATUS_CNT_MODE_V 0x3
#define PCNT_STATUS_CNT_MODE_S 0
/* counter value equals to thresh1*/
#define PCNT_STATUS_THRES1 BIT(2)
#define PCNT_STATUS_THRES1_M BIT(2)
#define PCNT_STATUS_THRES1_V 0x1
#define PCNT_STATUS_THRES1_S 2
/* counter value equals to thresh0*/
#define PCNT_STATUS_THRES0 BIT(3)
#define PCNT_STATUS_THRES0_M BIT(3)
#define PCNT_STATUS_THRES0_V 0x1
#define PCNT_STATUS_THRES0_S 3
/* counter value reaches h_lim*/
#define PCNT_STATUS_L_LIM BIT(4)
#define PCNT_STATUS_L_LIM_M BIT(4)
#define PCNT_STATUS_L_LIM_V 0x1
#define PCNT_STATUS_L_LIM_S 4
/* counter value reaches l_lim*/
#define PCNT_STATUS_H_LIM BIT(5)
#define PCNT_STATUS_H_LIM_M BIT(5)
#define PCNT_STATUS_H_LIM_V 0x1
#define PCNT_STATUS_H_LIM_S 5
/* counter value equals to zero*/
#define PCNT_STATUS_ZERO BIT(6)
#define PCNT_STATUS_ZERO_M BIT(6)
#define PCNT_STATUS_ZERO_V 0x1
#define PCNT_STATUS_ZERO_S 6
#define PCNT_U1_STATUS_REG (DR_REG_PCNT_BASE + 0x0094)
/* PCNT_CORE_STATUS_U1 : RO ;bitpos:[31:0] ;default: 32'h0 ; */

13
components/esp32/include/soc/pcnt_struct.h
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@@ -113,7 +113,18 @@ typedef volatile struct {
};
uint32_t val;
} int_clr;
uint32_t status_unit[8];
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.*/