43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
// Copyright 2021 IOsetting <iosetting@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_SYS_H___
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#define ___FW_SYS_H___
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#include "fw_conf.h"
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#include "fw_types.h"
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#define SYS_SetFOSC(__IRCBAND__, __VRTRIM__, __IRTRIM__, __LIRTRIM__) do { \
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IRCBAND = ((__IRCBAND__) & 0x03); \
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VRTRIM = (__VRTRIM__); \
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IRTRIM = (__IRTRIM__); \
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LIRTRIM = ((__LIRTRIM__) & 0x03); \
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} while(0)
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/**
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* STC8H Clock:
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* MCKSEL ||===> MCLKODIV ==> MCLKO_S => P1.6/P5.4
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* 00 Internal IRC | ||
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* 01 External OSC |==> CLKDIV ==> SYSCLK
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* 10 External 32KHz |
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* 11 Internal 32KHz |
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*/
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void SYS_Init(void);
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void SYS_Delay(uint16_t t);
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void SYS_DelayUs(uint16_t t);
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void SYS_SetSysClkDiv(uint8_t div);
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uint32_t SYS_GetSysClk(void);
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#endif
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