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| /* | ||
| ------------------------------------------------------------------------------ | ||
| ~ File : ask_decoder.c | ||
| ~ Author : Base algorithm by Mohammad Mazarei, Edited by Majid Derhambakhsh | ||
| ~ Version: V0.0.0 | ||
| ~ Created: 12/20/2021 09:00:00 AM | ||
| ~ Brief : | ||
| ~ Support: | ||
| E-Mail : [email protected] (subject : Embedded Library Support) | ||
| Github : https://github.com/Majid-Derhambakhsh | ||
| ------------------------------------------------------------------------------ | ||
| ~ Description: | ||
| ~ Attention : | ||
| ~ Changes : | ||
| ------------------------------------------------------------------------------ | ||
| */ | ||
|
|
||
| #include "ask_decoder.h" | ||
|
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||
| /* ............. Global variables ............ */ | ||
| #ifdef PROGMEM | ||
|
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| const uint32_t Bit_Shift[32] PROGMEM = | ||
| { | ||
| 0x00000001,0x00000002,0x00000004,0x00000008, | ||
| 0x00000010,0x00000020,0x00000040,0x00000080, | ||
| 0x00000100,0x00000200,0x00000400,0x00000800, | ||
| 0x00001000,0x00002000,0x00004000,0x00008000, | ||
| 0x00010000,0x00020000,0x00040000,0x00080000, | ||
| 0x00100000,0x00200000,0x00400000,0x00800000, | ||
| 0x01000000,0x02000000,0x04000000,0x08000000, | ||
| 0x10000000,0x20000000,0x40000000,0x80000000, | ||
| }; | ||
|
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||
| #else | ||
|
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| #define pgm_read_dword(addr) (*(const uint32_t *)(addr)) | ||
|
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| const uint32_t Bit_Shift[32] = | ||
| { | ||
| 0x00000001,0x00000002,0x00000004,0x00000008, | ||
| 0x00000010,0x00000020,0x00000040,0x00000080, | ||
| 0x00000100,0x00000200,0x00000400,0x00000800, | ||
| 0x00001000,0x00002000,0x00004000,0x00008000, | ||
| 0x00010000,0x00020000,0x00040000,0x00080000, | ||
| 0x00100000,0x00200000,0x00400000,0x00800000, | ||
| 0x01000000,0x02000000,0x04000000,0x08000000, | ||
| 0x10000000,0x20000000,0x40000000,0x80000000, | ||
| }; | ||
|
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| #endif // PROGMEM | ||
|
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| /* ................ Functions ................ */ | ||
| /* | ||
| * Function: ASK_IsValidRemote | ||
| * --------------------------- | ||
| * Get remote detecting status | ||
| * | ||
| * Param : | ||
| * ASK: Pointer to ASK module type | ||
| * | ||
| * Returns: | ||
| * returns 0 on not detecting valid remote | ||
| * returns 1 on detecting valid remote | ||
| * | ||
| * Example: | ||
| * ASK_TypeDef RF433; | ||
| * | ||
| * if (ASK_IsValidRemote(&RF433)) | ||
| * {...} | ||
| * | ||
| */ | ||
| uint8_t ASK_IsValidRemote(ASK_TypeDef *ASK) | ||
| { | ||
| return (ASK->SignalData.ReviseFlag == 1); | ||
| } | ||
|
|
||
| /* | ||
| * Function: ASK_GetRemoteCode | ||
| * --------------------------- | ||
| * Get detected remote code | ||
| * | ||
| * Param : | ||
| * ASK: Pointer to ASK module type | ||
| * | ||
| * Returns: | ||
| * returns received remote code: 20bit[RemoteID] + 4bit[Key] | ||
| * | ||
| * Example: | ||
| * uint32_t RemoteCode = 0; | ||
| * | ||
| * ASK_TypeDef RF433; | ||
| * | ||
| * RemoteCode = ASK_GetRemoteCode(&RF433); | ||
| * ... | ||
| * | ||
| */ | ||
| uint32_t ASK_GetRemoteCode(ASK_TypeDef *ASK) | ||
| { | ||
|
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| ASK->SignalData.ReviseFlag = 0; | ||
|
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| return ASK->ReceivedCode; | ||
|
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| } | ||
|
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| /* | ||
| * Function: ASK_GetRemoteInfo | ||
| * --------------------------- | ||
| * Get detected remote ID and Key | ||
| * | ||
| * Param : | ||
| * ASK : Pointer to ASK module type | ||
| * RemoteID : Pointer to get Remote ID | ||
| * PressedKey: Pointer to get Key code | ||
| * | ||
| * Returns: | ||
| * - | ||
| * | ||
| * Example: | ||
| * uint8_t RemoteKey = 0; | ||
| * uint32_t RemoteID = 0; | ||
| * | ||
| * ASK_TypeDef RF433; | ||
| * | ||
| * ASK_GetRemoteInfo(&RF433, &RemoteID, &RemoteKey); | ||
| * ... | ||
| * | ||
| */ | ||
| void ASK_GetRemoteInfo(ASK_TypeDef *ASK, uint32_t *RemoteID, uint8_t *PressedKey) | ||
| { | ||
|
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| ASK->SignalData.ReviseFlag = 0; | ||
|
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| *RemoteID = (ASK->ReceivedCode >> 4) & 0xFFFFF; | ||
| *PressedKey = ASK->ReceivedCode & 0xF; | ||
|
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| } | ||
|
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||
| /* ::::: ISR Handling ::::: */ | ||
| /* | ||
| * Function: ASK_ISRHandle_Rising | ||
| * ------------------------------ | ||
| * Handling received signal on rising edge | ||
| * | ||
| * Param : | ||
| * ASK: Pointer to ASK module type | ||
| * | ||
| * Returns: | ||
| * - | ||
| * | ||
| * Example: | ||
| * ASK_TypeDef RF433; | ||
| * | ||
| * void GPIO_ISR_RisingEdge() | ||
| * { | ||
| * ASK_ISRHandle_Rising(&RF433); | ||
| * ... | ||
| * } | ||
| * ... | ||
| * | ||
| */ | ||
| void ASK_ISRHandle_Rising(ASK_TypeDef *ASK) | ||
| { | ||
|
|
||
| /* ----- Store falling time of signal ----- */ | ||
| ASK->SignalData.RisingTimeStart = _ASKTimer_GetTick(); | ||
|
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| if (ASK->SignalData.RisingTimeStart <= ASK->SignalData.FallingTimeStart) | ||
| { | ||
| ASK->SignalData.FallingTime = (_ASK_TIMER_MAX_TICK - ASK->SignalData.FallingTimeStart) + ASK->SignalData.RisingTimeStart; | ||
| } | ||
| else | ||
| { | ||
| ASK->SignalData.FallingTime = ASK->SignalData.RisingTimeStart - ASK->SignalData.FallingTimeStart; | ||
| } | ||
|
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||
| /* -------------- Check pulse ------------- */ | ||
| if(_ASK_SIGNAL_IS_SYNC_PULSE(ASK->SignalData.RisingTime, ASK->SignalData.FallingTime)) /* Start Sync*/ | ||
| { | ||
|
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| ASK->SignalData.SyncStarted = 1; | ||
| ASK->SignalData.BitIndex = 0; | ||
| ASK->SignalData.ReceivedData = 0; | ||
|
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| } | ||
| else | ||
| { | ||
| /* Start Received */ | ||
| if(ASK->SignalData.SyncStarted == 1) | ||
| { | ||
|
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| if(ASK->SignalData.BitIndex < 23) | ||
| { | ||
|
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| if(_ASK_SIGNAL_BIT_IS_ZERO(ASK->SignalData.RisingTime, ASK->SignalData.FallingTime)) | ||
| { | ||
| ASK->SignalData.BitIndex++; | ||
| } | ||
| else if(_ASK_SIGNAL_BIT_IS_ONE(ASK->SignalData.RisingTime, ASK->SignalData.FallingTime)) | ||
| { | ||
|
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||
| ASK->SignalData.ReceivedData |= pgm_read_dword(&Bit_Shift[(23 - ASK->SignalData.BitIndex)]); | ||
| ASK->SignalData.BitIndex++; | ||
|
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||
| } | ||
| else | ||
| { | ||
|
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| ASK->SignalData.SyncStarted = 0; | ||
| ASK->SignalData.BitIndex = 0; | ||
|
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||
| } | ||
|
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| } | ||
| else | ||
| { | ||
|
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| if(_ASK_SIGNAL_BIT_IS_ZERO(ASK->SignalData.RisingTime, ASK->SignalData.FallingTime)) | ||
| { | ||
| ASK->SignalData.BitIndex++; | ||
| } | ||
| else if(_ASK_SIGNAL_BIT_IS_ONE(ASK->SignalData.RisingTime, ASK->SignalData.FallingTime)) | ||
| { | ||
| ASK->SignalData.ReceivedData |= pgm_read_dword(&Bit_Shift[(23 - ASK->SignalData.BitIndex)]); | ||
| ASK->SignalData.BitIndex++; | ||
| } | ||
| else | ||
| { | ||
|
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||
| ASK->SignalData.SyncStarted = 0; | ||
| ASK->SignalData.BitIndex = 0; | ||
|
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||
| } | ||
|
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| if(ASK->SignalData.SyncStarted) | ||
| { | ||
|
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| /* Data bits received */ | ||
| ASK->SignalData.BitIndex = 0; | ||
| ASK->SignalData.SyncStarted = 0; | ||
| ASK->ReceivedCode = ASK->SignalData.ReceivedData; | ||
| ASK->SignalData.ReviseFlag = 1; | ||
|
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||
| } | ||
|
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| } | ||
|
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| } | ||
| /* End of start received */ | ||
| } | ||
|
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| /* ------------ Start sampling ------------ */ | ||
| //ASK->Control.RisingTimeStart = _Timer_GetTick(); | ||
|
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| } | ||
|
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| /* | ||
| * Function: ASK_ISRHandle_Falling | ||
| * ------------------------------- | ||
| * Handling received signal on falling edge | ||
| * | ||
| * Param : | ||
| * ASK: Pointer to ASK module type | ||
| * | ||
| * Returns: | ||
| * - | ||
| * | ||
| * Example: | ||
| * ASK_TypeDef RF433; | ||
| * | ||
| * void GPIO_ISR_FallingEdge() | ||
| * { | ||
| * ASK_ISRHandle_Falling(&RF433); | ||
| * ... | ||
| * } | ||
| * ... | ||
| * | ||
| */ | ||
| void ASK_ISRHandle_Falling(ASK_TypeDef *ASK) | ||
| { | ||
|
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| /* ----- Store rising time of signal ----- */ | ||
| ASK->SignalData.FallingTimeStart = _ASKTimer_GetTick(); | ||
|
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| if (ASK->SignalData.FallingTimeStart <= ASK->SignalData.RisingTimeStart) | ||
| { | ||
| ASK->SignalData.RisingTime = (_ASK_TIMER_MAX_TICK - ASK->SignalData.RisingTimeStart) + ASK->SignalData.FallingTimeStart; | ||
| } | ||
| else | ||
| { | ||
| ASK->SignalData.RisingTime = ASK->SignalData.FallingTimeStart - ASK->SignalData.RisingTimeStart; | ||
| } | ||
|
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| /* ----------- Start sampling ------------ */ | ||
| //ASK->Control.FallingTimeStart = _Timer_GetTick(); | ||
|
|
||
| } |
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