Easy HID Command -Response application

[f_lez]

Thanks for that i'll have a play with them tonight, shame i am away form home for tomorrow as i know this will be on my mind all day, issue is having two incoming serial data streams, and an outgoing serial + the usb out....

Neither of the incoming streams seem to wait, so i have to write code that will be quick enough to read a command and react according ly before waiting for the next serial command or change of IO state, which would also require a serial out for status.... Oh and a RTC would be nice so i can say what time things happened.

Its all so simple when i explain it real life....

[Andre_Pretorius]

Hallo Darrel
a question i have used your code and it work 100% with a array of 8 values, if i would like to transfer more values do i need to edit your file as well as in the main program

[Darrel Taylor]

No, there's nothing in the USB_ASM_Service.pbp file to change.
But you'll need to edit the report size in the Descriptor file, and the arrays in your program.

If you were using DT_HID, you could do it all in your main program.

[Andre_Pretorius]

Mabe i mis understand something i have a file in my project called DESCUSBProject witch acording to me is the file i need to change but i i understand corectly it is already setted to use 64 bytes but as soon as i try to send more than 8 my device shows a conection but no data comes through below a part of the descriptor file

#define	EP0_BUFF_SIZE		64	; 8, 16, 32, or 64
#define	MAX_NUM_INT		1	; For tracking Alternate Setting
#define	MAX_EP_NUMBER		1	; UEP1
#define	NUM_CONFIGURATIONS	1
#define	NUM_INTERFACES		1

#define	MODE_PP			    _PPBM0
#define	UCFG_VAL		    _PUEN|_TRINT|_FS|MODE_PP	; Full-speed

; DEVICE CLASS USAGE
#define USB_USE_HID

; HID
; Endpoints Allocation
#define	HID_INTF_ID		  0x00
#define	HID_UEP			  UEP1
#define	HID_BD_OUT		  ep1Bo
#define	HID_INT_OUT_EP_SIZE	  64
#define	HID_BD_IN		  ep1Bi
#define	HID_INT_IN_EP_SIZE	  64
#define	HID_NUM_OF_DSC		  1

[Darrel Taylor]

Assuming it's a descriptor file from EasyHID, and you have PBP 2.50 or prior.

A little further down in the file you'll find a ReportDescriptor1.
Inside that, there's an *** INPUT REPORT *** and *** OUTPUT REPORT ***
And each of those has a ...

    ; report count (number of fields)
    retlw    0x95
    retlw    0x08

The 0x08 needs to be changed to match your array size.
Only 8, 16, 32 or 64 are valid.

hth,

[Andre_Pretorius]

Thank you i entered it in hex and everything works

[Mark J]

Hi guys,

Quick question to Darrel if you see this thread

Im using the USB_ASM_Service interupts which runs perfect for keeping my USB connection alive (as not using it with using LCDOUT in my main loop where no matter what I tried it killed the USB link even when I used your instant interupt 18 file.)
Now I need to use the HPWM and found the info referring to setting the new duty cycle which works, but what im having problems with is this:

I need to adjust the duty cycle based on user settings etc and updating the duty cycle in the main loop is way to slow (LCDOUT pauses slow the main loop down to much) so I added it as a hook using your INT_HOOK but I realised that the interupt only fires when the USB is plugged in (seems pretty obvious really as thats what the USB service file was created for lol) but I need it running all the time and have tried to insert your instant interupts again into the project, and after commenting out 2 lines which were in both files of yours, it assembles fine but when squirted into the pic and run it just hangs.

I was just wondering if you have any tips on using both your instant interupts and the USB service interupt file.

i'll keep plodding on with it in case I manage to work it out myself, but any info would be appreciated.


Update:

Ive managed to get the USB working by commenting out the:

 DEFINE INTHAND _DoUSBSERVICE

in the USB ASM Service file and adding it to here

asm
INT_LIST  macro  ; IntSource,        Label,  Type, ResetFlag?
        INT_Handler     USB_INT,     _DoUSBSERVICE, PBP, yes
        INT_Handler     INT_INT,     _MyPWM,   PBP,  yes
    endm
    INT_CREATE             ; Creates the Low Priority interrupt processor
ENDASM

@    INT_ENABLE  INT_INT

And it works fine BUT this is where im really getting lost. (Noticed that because its enabled in the USB ASM service file, I dont need to add it using the INT_ENABLE command.)
IF I set my interupt (the _MyPWM) to INT_INT it sends the LCD screen nuts BUT I can sort of see the counter im testing with changing, but when I try any other interupts it just sits there (Tried TMR0_INT and a fair few others with no luck as they either dont run the interupt or the LCD screen gets garbled)

Will keep plodding on and hopefully work out whats wrong.