87 lines
5.3 KiB
C
Executable File
87 lines
5.3 KiB
C
Executable File
// Copyright 2021 IOsetting <iosetting(at)outlook.com>
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef __FW_RX8025T_H__
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#define __FW_RX8025T_H__
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#include "fw_hal.h"
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#define RX8025T_I2C_ADDR 0x64
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/**
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* REGISTER TABLE
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*
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* * RX-8025T is different from RX-8025 SA/NB
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*/
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#define RX8025T_REG_SECOND 0x00 // BCD value 00 -> 59
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#define RX8025T_REG_MINUTE 0x01 // BCD value 00 -> 59
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#define RX8025T_REG_HOUR 0x02 // BCD value 00 -> 23
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#define RX8025T_REG_WEEKDAY 0x03 // bit 0->6: sunday->saturday
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#define RX8025T_REG_DAY 0x04 // BCD value 01 -> 31
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#define RX8025T_REG_MONTH 0x05 // BCD value 01 -> 12
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#define RX8025T_REG_YEAR 0x06 // BCD value 00 -> 99
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#define RX8025T_REG_RAM 0x07 // R/W accessible for any data in the range from 00 h to FF h
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#define RX8025T_REG_ALARM_MIN 0x08 // BCD value 00 -> 59
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#define RX8025T_REG_ALARM_HOUR 0x09 // BCD value 00 -> 23
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#define RX8025T_REG_ALARM_W_OR_D 0x0A // WEEK: bit 0->6: sunday->saturday
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// DAY: BCD value
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#define RX8025T_REG_TIMER_COUNTER0 0x0B // Fixed-cycle timer control registers to set the preset countdown value
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// for the fixed-cycle timer interrupt. (COUNTER1, COUNTER0) = 12bit number
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#define RX8025T_REG_TIMER_COUNTER1 0x0C // When control register changes from 001h to 000h, the /INT pin goes to
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// low level and "1" is set to the TF.
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#define RX8025T_REG_EXTEN 0x0D
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#define RX8025T_EXTEN_TEST 0x80 // TEST bit. value should always be "0"
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#define RX8025T_EXTEN_WADA 0x40 // Week Alarm/Day Alarm bit. R/W to specify either WEEK or DAY
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// as the target of the alarm interrupt function. 0:WEEK, 1:DAY
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#define RX8025T_EXTEN_USEL 0x20 // Update Interrupt Select bit. R/W specify either "second"
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// or "minute" as update interrupt, 0:second update, 1:minute update
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#define RX8025T_EXTEN_TE 0x10 // Timer Enable bit. controls the start/stop setting for the fixed-cycle
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// timer interrupt function. 1:start, 0:stop
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#define RX8025T_EXTEN_FSEL1 0x08 // FOUT frequency Select bits to set the FOUT frequency. (FSEL1, FSEL0)
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#define RX8025T_EXTEN_FSEL0 0x04 // 0,0:32.768KHz, 0,1:1024Hz, 1,0:1Hz, 1,1:32.768KHz
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#define RX8025T_EXTEN_TSEL1 0x02 // Timer Select bits to set the countdown period (source clock) for the
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// fixed-cycle timer interrupt (TSEL1, TSEL0)
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#define RX8025T_EXTEN_TSEL0 0x01 // 0,0:4096Hz, 0,1:64Hz, 1,0:1Hz(per second), 1,1:1/60Hz(per minute)
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#define RX8025T_REG_FLAG 0x0E
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#define RX8025T_FLAG_UF 0x20 // Update Flag. 0 -> 1 when a time update interrupt event has
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// occurred. 1 is retained until a 0 is written
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#define RX8025T_FLAG_TF 0x10 // Timer Flag. 0 -> 1 when a fixed-cycle timer interrupt
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// event has occurred, 1 is retained until a 0 is written
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#define RX8025T_FLAG_AF 0x08 // Alarm Flag. 0 -> 1 when an alarm interrupt event has occurred
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// 1 is retained until a 0 is written
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#define RX8025T_FLAG_VLF 0x02 // Voltage Low Flag. 0 -> 1 when data loss occurs, e.g. a supply
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// voltage drop,
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#define RX8025T_FLAG_VDET 0x01 // Voltage Detection Flag. 0 -> 1 when stop the temperature compensation
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// such as due to a supply voltage drop, 1 is retained until a 0 is written
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#define RX8025T_REG_CONTROL 0x0F
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#define RX8025T_CONTR_CSEL1 0x80 // Compensation interval (CSEL1, CSEL0)
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#define RX8025T_CONTR_CSEL0 0x40 // 0,0:0.5s, 0,1:2s(default), 1,0:10s, 1,1:30s
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#define RX8025T_CONTR_UIE 0x20 // Update Interrupt Enable, 0:off, 1:on
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#define RX8025T_CONTR_TIE 0x10 // Timer Interrupt Enable
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#define RX8025T_CONTR_AIE 0x08 // Alarm Interrupt Enable
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#define RX8025T_CONTR_RESET 0x01 // Writing a "1" to this bit stops the counter operation and
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// resets the RTC module's internal counter value when the
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// value is less than one second.
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uint8_t RX8025T_Init(void);
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uint8_t RX8025T_GetTime(uint8_t* t);
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uint8_t RX8025T_SetTime(uint8_t* t);
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#endif
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