?? usbhidio.lst
字號:
CYASM Version 1.75
(C) 1997 Cypress Semiconductor Corp.
0000 ;Filename: usbhidio.asm
0000 ;Version: 1.3
0000 ;Date: 11/5/99
0000 ;Copyright 1999 by Jan Axelson (jan@lvr.com)
0000 ;
0000 ;Chip: Cypress Semiconductor CY7C63001 USB Microcontroller
0000 ;Assembler: cyasm.exe
0000 ;Purpose: demonstrates USB communications with an HID-class device
0000 ;Description:
0000 ;Handles all required standard USB and HID-class requests.
0000 ;Receives data from the host in output reports
0000 ;using Interrupt transfers on endpoint 1.
0000 ;Sends data to the host in input reports
0000 ;using Control transfers on endpoint 0
0000 ;(because the chip doesn't support OUT transfers on endpoint 1).
0000 ;I used Cypress Semiconductor's js50.asm joystick example code as a base
0000 ;in creating this program.
0000 ;The companion host software is the Visual-Basic project usbhidio.vbp.
0000 ;For more information, visit Lakeview Research at http://www.lvr.com .
0000 ;Send comments, bug reports, etc. to jan@lvr.com .
0000
0000 ;Changes:
0000
0000 ;V1.3: 11/20/99
0000 ;The length of the string descriptors is now correct.
0000 ;(Thanks, John Hyde)
0000 ;Changed the control_read routine to prevent error when sending a
0000 ;multiple of 8 bytes.
0000 ;(Thanks, Dave Wright)
0000
0000 ;V1.2:
0000 ;added watchdog resets in wait loops,
0000 ;no watchdog reset in the 1-msec. timer ISR.
0000
0000 ;V1.1:
0000 ;Clears the watchdog only in the main routine
0000 ;(so the watchdog will detect if the main routine crashes).
0000 ;Some additions to the comments.
0000
0000 ;V1.0:
0000 ;Clears the Watchdog timer on 1-msec. interrupt.
0000 ;(Not needed on the development board, but needed for stand-alone.)
0000 ;The Endpoint 1 ISR now sets bit 7 of Endpoint 1 TX config to 1.
0000 ;(The bit is cleared on EP1 interrupt.)
0000
0000 ;======================================================================
0000 ;assembler directives (equates)
0000 ;======================================================================
0000
0000 ;----------------------------------------------------------------------
0000 ;I/O registers
0000 ;----------------------------------------------------------------------
0000
0000 ;I/O ports
0000 Port0_Data: equ 00h ; GPIO data port 0
0000 Port1_Data: equ 01h ; GPIO data port 1
0000 Port0_Interrupt: equ 04h ; Interrupt enable for port 0
0000 Port1_Interrupt: equ 05h ; Interrupt enable for port 1
0000 Port0_Pullup: equ 08h ; Pullup resistor control for port 0
0000 Port1_Pullup: equ 09h ; Pullup resistor control for port 1
0000
0000 ;USB ports
0000 USB_EP0_TX_Config: equ 10h ; USB EP0 transmit configuration
0000 USB_EP1_TX_Config: equ 11h ; USB EP1 transmit configuration
0000 USB_Device_Address: equ 12h ; USB device address assigned by host
0000 USB_Status_Control: equ 13h ; USB status and control register
0000 USB_EP0_RX_Status: equ 14h ; USB EP0 receive status
0000
0000 ;Control ports
0000 Global_Interrupt: equ 20h ; Global interrupt enable
0000 Watchdog: equ 21h ; clear watchdog Timer
0000 Timer: equ 23h ; free-running Timer
0000
0000 ;GPIO Isink registers
0000 Port0_Isink: equ 30h
0000 Port0_Isink0: equ 30h
0000 Port0_Isink1: equ 31h
0000 Port0_Isink2: equ 32h
0000 Port0_Isink3: equ 33h
0000 Port0_Isink4: equ 34h
0000 Port0_Isink5: equ 35h
0000 Port0_Isink6: equ 36h
0000 Port0_Isink7: equ 37h
0000 Port1_Isink: equ 38h
0000 Port1_Isink0: equ 38h
0000 Port1_Isink1: equ 39h
0000 Port1_Isink2: equ 3Ah
0000 Port1_Isink3: equ 3Bh
0000
0000 ;Control port
0000 Status_Control: equ FFh
0000
0000 ;----------------------------------------------------------------------
0000 ;Register bit values
0000 ;----------------------------------------------------------------------
0000
0000 ;CPU Status and Control (Status_Control)
0000 RunBit: equ 1h ; CPU Run bit
0000 USBReset: equ 20h ; USB Bus Reset bit
0000 WatchDogReset: equ 40h ; Watchdog Reset bit
0000
0000 ; USB EP1 transmit configuration (USB_EP1_TX_Config)
0000 DataToggle: equ 40h ; Data 0/1 bit
0000
0000 DISABLE_REMOTE_WAKEUP: equ 0 ; bit[1] = 0
0000 ENABLE_REMOTE_WAKEUP: equ 2 ; bit[1] = 1
0000
0000 ;----------------------------------------------------------------------
0000 ;Interrupt masks
0000 ;----------------------------------------------------------------------
0000
0000 ;The timer-only mask enables the 1-millisecond timer interrupt.
0000 TIMER_ONLY: equ 4h
0000
0000 ;The enumerate mask enables the following interrupts:
0000 ;1-millisecond timer, USB Endpoint 0
0000 ENUMERATE_MASK: equ 0Ch
0000
0000 ;The runtime mask enables the following interrupts:
0000 ;1-millisecond timer, USB Endpoint 0, USB Endpoint 1, GPIO
0000 RUNTIME_MASK: equ 5Ch
0000
0000 ;----------------------------------------------------------------------
0000 ; USB Constants
0000 ; from the USB Spec v1.1
0000 ;----------------------------------------------------------------------
0000
0000 ;standard request codes
0000 get_status: equ 0
0000 clear_feature: equ 1
0000 set_feature: equ 3
0000 set_address: equ 5
0000 get_descriptor: equ 6
0000 set_descriptor: equ 7
0000 get_configuration: equ 8
0000 set_configuration: equ 9
0000 get_interface: equ 10
0000 set_interface: equ 11
0000 synch_frame: equ 12
0000
0000 ; standard descriptor types
0000 device: equ 1
0000 configuration: equ 2
0000 string: equ 3
0000 interface: equ 4
0000 endpoint: equ 5
0000
0000 ; standard feature selectors
0000 endpoint_stalled: equ 0 ; recipient endpoint
0000 device_remote_wakeup: equ 1 ; recipient device
0000
0000 ;----------------------------------------------------------------------
0000 ;HID-class descriptors
0000 ;from HID Class Definition v1.1 Draft
0000 ;----------------------------------------------------------------------
0000
0000 ;Class-specific descriptor types from section 7.1 Standard Requests
0000 HID: equ 21h
0000 report: equ 22h
0000 physical: equ 23h
0000
0000 ;Class-specific request codes from section 7.2 Class Specific Requests
0000 get_report: equ 1
0000 get_idle: equ 2
0000 get_protocol: equ 3
0000 set_report: equ 9
0000 set_idle: equ 10
0000 set_protocol: equ 11
0000
0000 ;----------------------------------------------------------------------
0000 ;USB buffer bytes
0000 ;----------------------------------------------------------------------
0000
0000 ;Control Endpoint 0 buffer
0000 Endpoint_0: equ 70h ; control endpoint
0000 Endpoint0_Byte0: equ 70h ; Endpoint 0, byte 0
0000 Endpoint0_Byte1: equ 71h ; Endpoint 0 byte 1
0000 Endpoint0_Byte2: equ 72h ; Endpoint 0 byte 2
0000 Endpoint0_Byte3: equ 73h ; Endpoint 0 byte 3
0000 Endpoint0_Byte4: equ 74h ; Endpoint 0 byte 4
0000 Endpoint0_Byte5: equ 75h ; Endpoint 0 byte 5
0000 Endpoint0_Byte6: equ 76h ; Endpoint 0 byte 6
0000 Endpoint0_Byte7: equ 77h ; Endpoint 0 byte 7
0000
0000
0000 ;Endpoint 0 SETUP packet bytes
0000 bmRequestType: equ 70h
0000 bRequest: equ 71h
0000 wValue: equ 72h ; default wValue (8 bits)
0000 wValueHi: equ 73h
0000 wIndex: equ 74h ; default wIndex (8 bits)
0000 wIndexHi: equ 75h
0000 wLength: equ 76h ; default wLength (8 bits)
0000 wLengthHi: equ 77h
0000
0000 ;Endpoint 1 buffer
0000 endpoint_1: equ 78h
0000 Endpoint1_Byte0: equ 78h ; Endpoint 1, byte 0
0000 Endpoint1_Byte1: equ 79h ; Endpoint 1 byte 1
0000 Endpoint1_Byte2: equ 7Ah ; Endpoint 1 byte 2
0000 Endpoint1_Byte3: equ 7Bh ; Endpoint 1 byte 3
0000 Endpoint1_Byte4: equ 7Ch ; Endpoint 1 byte 4
0000 Endpoint1_Byte5: equ 7Dh ; Endpoint 1 byte 5
0000 Endpoint1_Byte6: equ 7Eh ; Endpoint 1 byte 6
0000 Endpoint1_Byte7: equ 7Fh ; Endpoint 1 byte 7
0000
0000 ;----------------------------------------------------------------------
0000 ; Variables stored in data memory
0000 ;----------------------------------------------------------------------
0000 ;USB status
0000 remote_wakeup_status: equ 30h ;0=disabled, 2-enabled
0000 configuration_status: equ 31h ;0=unconfigured, 1=configured
0000 ;idle_status: equ 33h ;support SetIdle and GetIdle
0000 protocol_status: equ 34h ;0=boot protocol, 1=report protocol
0000
0000 ;Other variables:
0000 suspend_counter: equ 35h ;number of idle bus milliseconds
0000 loop_temp: equ 37h ;temporary loop variable
0000 start_send: equ 32h ;0=false, 1=true
0000
0000 ;Received data:
0000 Data_Byte0: equ 38h
0000 Data_Byte1: equ 39h
0000 Data_Byte2: equ 3Ah
0000 Data_Byte3: equ 3Bh
0000 Data_Byte4: equ 3Ch
0000 Data_Byte5: equ 3Dh
0000 Data_Byte6: equ 3Eh
0000 Data_Byte7: equ 3Fh
0000
0000 temp: equ 25h
0000 start_time: equ 21h
0000 testbit: equ 22h
0000 interrupt_mask: equ 20h
0000 endp0_data_toggle: equ 23h
0000 loop_counter: equ 24h
0000 data_start: equ 27h
0000 data_count: equ 28h
0000 endpoint_stall: equ 29h
0000
0000 ;======================================================================
0000 ;interrupt vectors
0000 ;======================================================================
0000
0000 org 00h ; Reset vector; begin here after a reset.
0000 80 99 [05] jmp Reset
0002
0002 org 02h ; 128-microsecond interrupt
0002 80 10 [05] jmp DoNothing_ISR
0004
0004 org 04h ; 1024-millisecond interrupt
0004 80 15 [05] jmp One_mSec_ISR
0006
0006 org 06h ; endpoint 0 interrupt
0006 81 24 [05] jmp USB_EP0_ISR
0008
0008 org 08h ; endpoint 1 interrupt
0008 80 8C [05] jmp USB_EP1_ISR
000A
000A org 0Ah ; reserved interrupt
000A 80 99 [05] jmp Reset
000C
000C org 0Ch ; general purpose I/O interrupt
000C 80 85 [05] jmp GPIO_ISR ; not used
000E
000E org 0Eh ; Wakeup_ISR or resume interrupt
000E 80 10 [05] jmp DoNothing_ISR ; not used
0010
0010 ORG 10h
0010
0010 ;======================================================================
0010 ;Interrupt routines
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