111 lines
1.6 KiB
NASM
111 lines
1.6 KiB
NASM
CPU SC14421
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ORG 0
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BR Start
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PB_LED EQU 0x80
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PB_RX_ON EQU 0x40
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PB_TX_ON EQU 0x10
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PB_RADIOPOWER EQU 0x04
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PB_DCTHRESHOLD EQU 0x02
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PB_RSSI EQU 0x01
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;-------------------------------------------------------------
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Start: B_RST
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BK_C 0x00
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C_LD 0x10
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WT 10
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B_RC 0x00
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WT 8
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B_RST
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C_ON
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WT 10
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P_EN
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P_LD PB_RADIOPOWER
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RCK_INT
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RFEN
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;-------------------------------------------------------------
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BK_C 0x20
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JMP RFInit
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TryAgain: JMP label_B1
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WT 250
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P_SC 0x20
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P_LDH PB_RX_ON|PB_DCTHRESHOLD
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UNLCK
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WT 64
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B_XOFF
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B_SR
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WNT 20
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JMP1 SFieldFound
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BR TryAgain
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;-------------------------------------------------------------
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SFieldFound: WNT 23
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P_SC 0x00
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JMP ReceiveSlot
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U_INT0
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BR TryAgain
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;-------------------------------------------------------------
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ReceiveSlot: JMP label_B1
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JMP RecvPP
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WT 1
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B_BRFU 0x0e
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WT 255
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WT 73
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P_LDH PB_RSSI
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P_LDL PB_RX_ON
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B_WRS 0x00
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WT 6
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B_RST
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P_LDL PB_RX_ON|PB_TX_ON
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WT 5
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RTN
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;-------------------------------------------------------------
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RecvPP: P_LDH PB_RX_ON
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P_LDL PB_RSSI
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WT 34
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WNT 1
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B_XON
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P_LDH PB_DCTHRESHOLD
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WT 5
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B_SR
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EN_SL_ADJ
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WT 12
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P_LDL PB_DCTHRESHOLD
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WT 33
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B_AR2 0x06
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WT 61
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RTN
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;-------------------------------------------------------------
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RFInit: RFEN
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MEN1N
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WT 2
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M_WR 0x4A
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WT 25
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M_RST
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MEN1
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MEN1N
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M_WR 0x4D
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WT 10
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M_RST
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MEN1
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RTN
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;-------------------------------------------------------------
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label_B1: B_RST
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B_RC 0x58
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WT 8
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MEN2
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WT 182
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MEN2N
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WT 16
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RTN
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;-------------------------------------------------------------
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