f220full.asm

Templates for c51 from Cygnal

;---------------------------------------------------------------
; CYGNAL Integrated Products 
;
; Assembly Code Configuration Tool: F220 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.

;----------------------------------------------------------------
; INTERRUPT VECTOR CODE
;----------------------------------------------------------------

	org	00h
	LJMP Config
; Place jump to reset handler and interrupt service routines here.

Config:

	org 0B3h		; End of Interrupt Vector space.

;----------------------------------------------------------------
; 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

; Configure the PRTnMX Registers

	mov PRT0MX, #000h ; PRT0MX:	Initial Reset Value
	mov PRT1MX, #000h ; PRT1MX: Initial Reset Value
	mov PRT2MX, #000h ; PRT2MX: Initial Reset Value
	mov PRT3MX, #000h ; PRT3MX: 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.  
; If the I/O direction changes to input once the peripheral is
; configured, the peripheral hardware will override the PRTnCF register 
; setting and change the pin configuration to input.

; Port configuration (1 = Push Pull Output)

	mov PRT0CF, #000h ; Output configuration for P0 
	mov PRT1CF, #000h ; Output configuration for P1 
	mov PRT2CF, #000h ; 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 = GP I/O          (Open-Drain Output/Input)
		; P0.1 = GP I/O          (Open-Drain Output/Input)
		; P0.2 = GP I/O          (Open-Drain Output/Input)
		; P0.3 = GP I/O          (Open-Drain Output/Input)
		; P0.4 = GP I/O          (Open-Drain Output/Input)
		; P0.5 = GP I/O          (Open-Drain Output/Input)
		; P0.6 = GP I/O          (Open-Drain Output/Input)
		; P0.7 = GP I/O          (Open-Drain Output/Input)

		; Port 1
		; P1.0 = GP I/O          (Open-Drain Output/Input)
		; P1.1 = GP I/O          (Open-Drain Output/Input)
		; P1.2 = GP I/O          (Open-Drain Output/Input)
		; P1.3 = GP I/O          (Open-Drain Output/Input)
		; P1.4 = GP I/O          (Open-Drain Output/Input)
		; P1.5 = GP I/O          (Open-Drain Output/Input)
		; P1.6 = GP I/O          (Open-Drain Output/Input)
		; P1.7 = GP I/O          (Open-Drain Output/Input)
					
		; Port 2		
		; P2.0 = GP I/O          (Open-Drain Output/Input)
		; P2.1 = GP I/O          (Open-Drain Output/Input)
		; P2.2 = GP I/O          (Open-Drain Output/Input)
		; P2.3 = GP I/O          (Open-Drain Output/Input)
		; P2.4 = GP I/O          (Open-Drain Output/Input)
		; P2.5 = GP I/O          (Open-Drain Output/Input)
		; P2.6 = GP I/O          (Open-Drain Output/Input)
		; P2.7 = GP I/O          (Open-Drain Output/Input)

		; Port 3		
		; P3.0 = GP I/O          (Open-Drain Output/Input)
		; P3.1 = GP I/O          (Open-Drain Output/Input)
		; P3.2 = GP I/O          (Open-Drain Output/Input)
		; P3.3 = GP I/O          (Open-Drain Output/Input)
		; P3.4 = GP I/O          (Open-Drain Output/Input)
		; P3.5 = GP I/O          (Open-Drain Output/Input)
		; P3.6 = GP I/O          (Open-Drain Output/Input)
		; P3.7 = GP I/O          (Open-Drain Output/Input)
;----------------------------------------------------------------
; 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

					
;----------------------------------------------------------------
; Oscillator Configuration
;----------------------------------------------------------------

	mov OSCXCN, #030h	; External Oscillator Control Register	

	mov OSCICN, #004h	; Internal Oscillator Control Register

	
;----------------------------------------------------------------
; Reference Control Register Configuration
;----------------------------------------------------------------

	mov REF0CN, #000h	; Reference Control Register

;----------------------------------------------------------------
; SPI Configuration
;----------------------------------------------------------------

	mov SPI0CN, #000h	; SPI Control Register
	mov SPI0CFG, #000h	; SPI Configuration Register
	mov SPI0CKR, #000h	; SPI Clock Rate Register

;----------------------------------------------------------------
; UART Configuration
;----------------------------------------------------------------

	mov SCON, #000h		; Serial Port Control Register
	mov PCON, #000h		; Power Control Register

;----------------------------------------------------------------
; ADC Configuration
;----------------------------------------------------------------

	mov AMX0CF, #060h	; AMUX Configuration Register
	mov AMX0SL, #000h	; AMUX Channel Select Register
	mov ADC0CF, #000h	; ADC Configuraion Register
	mov ADC0CN, #000h	; ADC Control Register
	
	mov ADC0LTH, #000h	; ADC Less-Than High Byte Register
	mov ADC0GTH, #0FFh	; ADC Greater-Than High Byte Register

;----------------------------------------------------------------
; Timer Configuration
;----------------------------------------------------------------

	mov CKCON, #000h	; Clock Control Register
	mov TH0, #000h		; Timer 0 High Byte
	mov TL0, #000h		; Timer 0 Low Byte
	mov TH1, #000h		; Timer 1 High Byte
	mov TL1, #000h		; Timer 1 Low Byte
	mov TMOD, #000h		; Timer Mode Register
	mov TCON, #000h		; 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, #000h		;Interrupt Enable
	mov IP, #000h		;Interrupt Priority
	mov EIE1, #000h		;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:

	; main code routines here...

END