fw_iap.h

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// Copyright 2021 IOsetting <iosetting(at)outlook.com>
//
// 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 ___FW_IAP_H___
#define ___FW_IAP_H___
 
#include "fw_conf.h"
#include "fw_types.h"
 
typedef enum
{
    IAP_RestartFrom_UserCode    = 0x00,
    IAP_RestartFrom_ISPCode     = 0x01,
} IAP_RestartFrom_t;
 
#define IAP_SetWaitTime()           (IAP_TPS = (uint8_t)(__CONF_FOSC / 1000000UL))
#define IAP_ReadData()              (IAP_DATA)
#define IAP_WriteData(__BYTE__)     (IAP_DATA = (__BYTE__))
 
#define IAP_SetIdle()               (IAP_CMD = IAP_CMD & ~(0x03))
 
#define IAP_CmdRead(__16BIT_ADDR__)   do{ \
                            EA = 0; \
                            IAP_ADDRH = ((__16BIT_ADDR__) >> 8); \
                            IAP_ADDRL = ((__16BIT_ADDR__) & 0xFF); \
                            IAP_CMD = IAP_CMD & ~(0x03) | 0x01; \
                            IAP_TRIG = 0x5A; \
                            IAP_TRIG = 0xA5; \
                            NOP();NOP(); \
                            IAP_SetIdle(); \
                            EA = 1; \
                        }while(0)
#define IAP_CmdWrite(__16BIT_ADDR__)   do{ \
                            EA = 0; \
                            IAP_ADDRH = ((__16BIT_ADDR__) >> 8); \
                            IAP_ADDRL = ((__16BIT_ADDR__) & 0xFF); \
                            IAP_CMD = IAP_CMD & ~(0x03) | 0x02; \
                            IAP_TRIG = 0x5A; \
                            IAP_TRIG = 0xA5; \
                            NOP();NOP(); \
                            IAP_SetIdle(); \
                            EA = 1; \
                        }while(0)
#define IAP_CmdErase(__16BIT_ADDR__)   do{ \
                            EA = 0; \
                            IAP_ADDRH = ((__16BIT_ADDR__) >> 8); \
                            IAP_ADDRL = ((__16BIT_ADDR__) & 0xFF); \
                            IAP_CMD = IAP_CMD & ~(0x03) | 0x03; \
                            IAP_TRIG = 0x5A; \
                            IAP_TRIG = 0xA5; \
                            NOP();NOP(); \
                            IAP_SetIdle(); \
                            EA = 1; \
                        }while(0)
 
#define IAP_SetEnabled(__STATE__)       SFR_ASSIGN(IAP_CONTR, 7, __STATE__)
#define IAP_SetRestartFrom(__FROM__)    SFR_ASSIGN(IAP_CONTR, 6, __FROM__)
#define IAP_SoftReset()                 SFR_SET(IAP_CONTR, 5)
#define IAP_IsCmdFailed()               (IAP_CONTR & (0x01 << 4))
#define IAP_ClearCmdFailFlag()          SFR_RESET(IAP_CONTR, 4)
 
 
#endif