📄 uartqq.asm
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;---------------------------------------------------------------
; CYGNAL Integrated Products
;
; Assembly Code Configuration Tool: F230 INITIALIZATION/CONFIGURATION CODE
;----------------------------------------------------------------
; This file is read only. To insert the code into your
; application, simply cut and paste or use the "Save As"
; command in the file menu to save the file in your project
; directory.
;----------------------------------------------------------------
;----------------------------------------------------------------
; GLOBAL VARIABLES AND ASSIGNMENTS
;----------------------------------------------------------------
$INCLUDE(C8051F200.INC) ; Register definition file.
PWR_UP BIT P2.5
CE BIT P2.6
CS BIT P2.7
DR1 BIT P0.2
;----------------------------------------------------------------
; INTERRUPT VECTOR CODE
;----------------------------------------------------------------
org 00h
LJMP Config
ORG 0023H
LJMP UART
ORG 0033H
LJMP SPI
org 0B3h ; End of Interrupt Vector space.
Config:
;----------------------------------------------------------------
; Watchdog Timer Configuration
;
; WDTCN.[7:0]: WDT Control
; Writing 0xA5 enables and reloads the WDT.
; Writing 0xDE followed within 4 clocks by 0xAD disables the WDT
; Writing 0xFF locks out disable feature.
;
; WDTCN.[2:0]: WDT timer interval bits
; NOTE! When writing interval bits, bit 7 must be a 0.
;
; Bit 2 | Bit 1 | Bit 0
;------------------------
; 1 | 1 | 1 Timeout interval = 1048576 x Tsysclk
; 1 | 1 | 0 Timeout interval = 262144 x Tsysclk
; 1 | 0 | 1 Timeout interval = 65636 x Tsysclk
; 1 | 0 | 0 Timeout interval = 16384 x Tsysclk
; 0 | 1 | 1 Timeout interval = 4096 x Tsysclk
; 0 | 1 | 0 Timeout interval = 1024 x Tsysclk
; 0 | 0 | 1 Timeout interval = 256 x Tsysclk
; 0 | 0 | 0 Timeout interval = 64 x Tsysclk
;------------------------
mov WDTCN, #007h ; Watchdog Timer Control Register
mov WDTCN, #0DEh ; Disable WDT mov WDTCN, #0ADh
; Configure the PRTnMX Registers
mov PRT0MX, #001h ; PRT0MX: Initial Reset Value
mov PRT1MX, #000h ; PRT1MX: Initial Reset Value
mov PRT2MX, #041h ; PRT2MX: Initial Reset Value
; Select Pin I/0
; NOTE: Some peripheral I/O pins can function as either inputs or
; outputs, depending on the configuration of the peripheral. By default,
; the configuration utility will configure outputs as push-pull.
; Port configuration (1 = Push Pull Output)
mov PRT0CF, #001h ; Output configuration for P0
mov PRT1CF, #000h ; Output configuration for P1
mov PRT2CF, #0F7h ; Output configuration for P2
mov PRT3CF, #000h ; Output configuration for P3
mov P0MODE, #0FFh ; Input Configuration for P0
mov P1MODE, #0FFh ; Input Configuration for P1
mov P2MODE, #0FFh ; Input Configuration for P2
mov P3MODE, #0FFh ; Input Configuration for P3
; View port pinout
; The current MUX configuration results in the
; following port pinout assignment:
; Port 0
; P0.0 = UART0 TX (Push-Pull Output)(Digital) ; P0.1 = UART0 RX (Open-Drain Output/Input)(Digital) ; P0.2 = GP I/O (Open-Drain Output/Input)(Digital)
; P0.3 = GP I/O (Open-Drain Output/Input)(Digital)
; P0.4 = GP I/O (Open-Drain Output/Input)(Digital)
; P0.5 = GP I/O (Open-Drain Output/Input)(Digital)
; P0.6 = GP I/O (Open-Drain Output/Input)(Digital)
; P0.7 = GP I/O (Open-Drain Output/Input)(Digital)
; Port 1
; P1.0 = GP I/O (Open-Drain Output/Input)(Digital)
; P1.1 = GP I/O (Open-Drain Output/Input)(Digital)
; P1.2 = GP I/O (Open-Drain Output/Input)(Digital)
; P1.3 = GP I/O (Open-Drain Output/Input)(Digital)
; P1.4 = GP I/O (Open-Drain Output/Input)(Digital)
; P1.5 = GP I/O (Open-Drain Output/Input)(Digital)
; P1.6 = GP I/O (Open-Drain Output/Input)(Digital)
; P1.7 = GP I/O (Open-Drain Output/Input)(Digital)
; Port 2
; P2.0 = SPI Bus SCK (Push-Pull Output)(Digital) ; P2.1 = SPI Bus MISO (Push-Pull Output)(Digital) ; P2.2 = SPI Bus MOSI (Push-Pull Output)(Digital) ; P2.3 = SPI Bus NSS (Open-Drain Output/Input)(Digital) ; P2.4 = GP I/O (Push-Pull Output)(Digital)
; P2.5 = GP I/O (Push-Pull Output)(Digital)
; P2.6 = GP I/O (Push-Pull Output)(Digital)
; P2.7 = GP I/O (Push-Pull Output)(Digital)
; Port 3
; P3.0 = GP I/O (Open-Drain Output/Input)(Digital)
; P3.1 = GP I/O (Open-Drain Output/Input)(Digital)
; P3.2 = GP I/O (Open-Drain Output/Input)(Digital)
; P3.3 = GP I/O (Open-Drain Output/Input)(Digital)
; P3.4 = GP I/O (Open-Drain Output/Input)(Digital)
; P3.5 = GP I/O (Open-Drain Output/Input)(Digital)
; P3.6 = GP I/O (Open-Drain Output/Input)(Digital)
; P3.7 = GP I/O (Open-Drain Output/Input)(Digital)
;----------------------------------------------------------------
; Oscillator Configuration
;----------------------------------------------------------------
mov OSCXCN, #067h ; External Oscillator Control Register
clr A ;osc djnz ACC, $ ;wait for djnz ACC, $ ;at least 1msOX_WAIT: mov A, OSCXCN jnb ACC.7, OX_WAIT ;poll XTLVLD
mov OSCICN, #088h ; Internal Oscillator Control Register
;----------------------------------------------------------------
; Reference Control Register Configuration
;----------------------------------------------------------------
mov REF0CN, #000h ; Reference Control Register
;----------------------------------------------------------------
; SPI Configuration
;----------------------------------------------------------------
mov SPI0CN, #002h ; SPI Control Register
mov SPI0CFG, #007h ; SPI Configuration Register
mov SPI0CKR, #011h ; SPI Clock Rate Register
orl SPI0CN, #001
;----------------------------------------------------------------
; Comparators Register Configuration
;
; Bit 7 | Bit 6 | Bit 5 | Bit 4 | Bit 3 | Bit 2 | Bit 1 | Bit 0
;------------------------------------------------------------------
; R/W | R | R/W | R/W | R/W | R/W | R/W | R/W
;------------------------------------------------------------------
; Enable | Output | Rising | Falling| Positive | Negative
; | State | Edge | Edge | Hysterisis | Hysterisis
; | Flag | Int. | Int. | 00: Disable | 00: Disable
; | | Flag | Flag | 01: 5mV | 01: 5mV
; | | | | 10: 10mV | 10: 10mV
; | | | | 11: 20mV | 11: 20mV
; ----------------------------------------------------------------
mov CPT0CN, #000h ; Comparator 0 Control Register
mov CPT1CN, #000h ; Comparator 1 Control Register
;Comp1 marker
;----------------------------------------------------------------
; UART Configuration
;----------------------------------------------------------------
mov SCON, #050h ; Serial Port Control Register
anl SCON, #0FCh ; clear interrupt pending flags mov PCON, #000h ; Power Control Register
;----------------------------------------------------------------
; Timer Configuration
;----------------------------------------------------------------
mov CKCON, #010h ; Clock Control Register
mov TH0, #000h ; Timer 0 High Byte
mov TL0, #000h ; Timer 0 Low Byte
mov TH1, #0FAh ; Timer 1 High Byte
mov TL1, #0FAh ; Timer 1 Low Byte
mov TMOD, #020h ; Timer Mode Register
mov TCON, #040h ; Timer Control Register
mov RCAP2H, #000h ; Timer 2 Capture Register High Byte
mov RCAP2L, #000h ; Timer 2 Capture Register Low Byte
mov TH2, #000h ; Timer 2 High Byte
mov TL2, #000h ; Timer 2 Low Byte
mov T2CON, #000h ; Timer 2 Control Register
;---------------------------------------------------------------
; Reset Source Configuration
;
; Bit 7 | Bit 6 | Bit 5 | Bit 4 | Bit 3 | Bit 2 | Bit 1 | Bit 0
;------------------------------------------------------------------
; | R | R/W | R/W | R | R | R/W | R
;------------------------------------------------------------------
;Reserved|NOT | Comp.0 | S/W | WDT | Miss. | POR | HW
; |USED | Reset/ | Reset | Reset | Clock | Force | Pin
; | | Enable | Force | Flag | Detect| & | Reset
; | | Flag | & | | Flag | Flag | Flag
; | | | Flag | | |
;------------------------------------------------------------------
;
; NOTE! : Comparator 0 must be enabled before it is enabled as a
; reset source.
;------------------------------------------------------------------
mov RSTSRC, #000h ; Reset Source Register
;----------------------------------------------------------------
; Interrupt Configuration
;----------------------------------------------------------------
mov IE, #010h ;Interrupt Enable
mov IP, #000h ;Interrupt Priority
mov EIE1, #001h ;Extended Interrupt Enable 1
mov EIE2, #000h ;Extended Interrupt Enable 2
mov EIP1, #000h ;Extended Interrupt Priority 1
mov EIP2, #000h ;Extended Interrupt Priority 2
; other initialization code here...
;-----------------------------------------------------------------
; MAIN PROGRAM CODE
;-----------------------------------------------------------------
Main:
MOV SP,#69H
; MOV R4,#0FFH
;>>>>>>>>>>>>>>>>>>>>>>> nRF2401配置开始 >>>>>>>>>>>>>>>>>>>>>>>
CLR PWR_UP
CLR CE
CLR CS
ACALL DELAY3MS
SETB PWR_UP
ACALL DELAY3MS
SETB CS
ACALL DELAY5US
MOV DPTR,#TABLE
ACALL NRFPZ
CLR CS ;nRF2401开始配置
ACALL DELAY3MS ;等待配置延时
ACALL DELAY3MS
SETB DR1 ;DR1写1,准备接受接收数据
;....................... nRF2401配置结束 .......................
;>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
SETB CE ;启动收发模式，这里为发送模式
SETB EA ;开放中断
MOV 49H,#20 ;UART接收计数
MOV 4AH,#4BH ;UART接收缓冲区首地址
CXUN:
MOV A,PCON
JB ACC.6,GF4 ;UART接收标志
MOV C,DR1
MOV 20H.1,C
JBC 20H.1,BZ ;2401接收标志
AJMP CXUN
GF4:
ANL PCON,#0BFH
MOV 49H,#20 ;UART接收计数
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