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Amadeus
Joined: 07 Oct 2022
Posts: 3
Location: Montreal
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| PIC18F4550 VID & PID Change |
 Posted: Fri Oct 07, 2022 7:25 pm |
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Hello all,
I'm doing a HID project using a PIC18F4550.
I have a problem with the VID & PID.
I have defined them in the usb_desc_hid.h file.
I'm running my hex (for testing) in a Proteus project using a virtual USB plugin.
When I'm running the project, my device connects correctly without any error and run correctly.
The problem is the VID & PID are changing every time that I'm running the project.
For some reason (that I don't understand) I'm feeling that my VID & PID are overwritten somewhere.
For testing, I'm using the default usb_desc_hid.h from the CCS driver folder with the VID & PID address set by default from CCS.
Finally, I'm using the last CCS compiler version that I just buy.
Before using the CCS compiler, i was using the free version of the XC8 compiler and i was not having problem with those address.
It appears to be the same problem with the name, vendor name, product name and description that are not changing.
The Device is done to be run on Windows PC only.
Some help will be more then welcome.
Here's the code:
| Code: |
#IFNDEF __USB_DESCRIPTORS__
#DEFINE __USB_DESCRIPTORS__
#ifndef USB_CONFIG_PID
#define USB_CONFIG_PID 0x0020
#endif
#ifndef USB_CONFIG_VID
#define USB_CONFIG_VID 0x0461
#endif
#ifndef USB_CONFIG_BUS_POWER
//valid range is 0..500
#define USB_CONFIG_BUS_POWER 100 //100mA
#endif
#ifndef USB_CONFIG_VERSION
//version number that is stored into descriptor, in bcd.
//range is 00.00 to 99.99
#define USB_CONFIG_VERSION 0x0100 //01.00
#endif
#ifndef USB_CONFIG_HID_TX_SIZE
//valid range is 0-255
#define USB_CONFIG_HID_TX_SIZE 2 //compatible with hiddemo.exe
#endif
#ifndef USB_CONFIG_HID_RX_SIZE
//valid range is 0-255
#define USB_CONFIG_HID_RX_SIZE 2 //compatible with hiddemo.exe
#endif
#ifndef USB_CONFIG_HID_TX_POLL
// for full speed devices, valid range is 1-255
// for slow speed devices, valid range is 10-255
#define USB_CONFIG_HID_TX_POLL 10
#endif
#ifndef USB_CONFIG_HID_RX_POLL
// for full speed devices, valid range is 1-255
// for slow speed devices, valid range is 10-255
#define USB_CONFIG_HID_RX_POLL 10
#endif
//Tells the CCS PIC USB firmware to include HID handling code.
#ifdef USB_HID_DEVICE
#undef USB_HID_DEVICE
#endif
#include <stdbool.h>
#DEFINE USB_HID_DEVICE true
//the following defines needed for the CCS USB PIC driver to enable the TX endpoint 1
// and allocate buffer space on the peripheral
#ifdef USB_EP1_TX_ENABLE
#undef USB_EP1_TX_ENABLE
#endif
#define USB_EP1_TX_ENABLE USB_ENABLE_INTERRUPT //turn on EP1 for IN bulk/interrupt transfers
#define USB_HID_ENDPOINT 1
#ifndef USB_EP1_TX_SIZE
#if (USB_CONFIG_HID_TX_SIZE >= 64)
// interrupt endpoint max packet size is 64.
#define USB_EP1_TX_SIZE 64
#else
// by making EP packet size larger than message size, we can send message in one packet.
#define USB_EP1_TX_SIZE (USB_CONFIG_HID_TX_SIZE+1)
#endif
#endif
#ifdef USB_EP1_RX_ENABLE
#undef USB_EP1_RX_ENABLE
#endif
#define USB_EP1_RX_ENABLE USB_ENABLE_INTERRUPT //turn on EP1 for OUT bulk/interrupt transfers
#ifndef USB_EP1_RX_SIZE
#if (USB_CONFIG_HID_RX_SIZE >= 64)
// interrupt endpoint max packet size is 64.
#define USB_EP1_RX_SIZE 64
#else
// by making EP packet size larger than message size, we can send message in one packet.
#define USB_EP1_RX_SIZE (USB_CONFIG_HID_RX_SIZE+1)
#endif
#endif
#include <usb.h>
//////////////////////////////////////////////////////////////////
///
/// HID Report. Tells HID driver how to handle and deal with
/// received data. HID Reports can be extremely complex,
/// see HID specifcation for help on writing your own.
///
/// CCS example uses a vendor specified usage, that sends and
/// receives 2 absolute bytes ranging from 0 to 0xFF.
///
//////////////////////////////////////////////////////////////////
const char USB_CLASS_SPECIFIC_DESC[] =
{
6, 0, 255, // Usage Page = Vendor Defined
9, 1, // Usage = IO device
0xa1, 1, // Collection = Application
0x19, 1, // Usage minimum
0x29, 8, // Usage maximum
0x15, 0x80, // Logical minimum (-128)
0x25, 0x7F, // Logical maximum (127)
0x75, 8, // Report size = 8 (bits)
0x95, USB_CONFIG_HID_TX_SIZE, // Report count = 16 bits (2 bytes)
0x81, 2, // Input (Data, Var, Abs)
0x19, 1, // Usage minimum
0x29, 8, // Usage maximum
0x75, 8, // Report size = 8 (bits)
0x95, USB_CONFIG_HID_RX_SIZE, // Report count = 16 bits (2 bytes)
0x91, 2, // Output (Data, Var, Abs)
0xc0 // End Collection
};
//if a class has an extra descriptor not part of the config descriptor,
// this lookup table defines where to look for it in the const
// USB_CLASS_SPECIFIC_DESC[] array.
//first element is the config number (if your device has more than one config)
//second element is which interface number
//set element to 0xFFFF if this config/interface combo doesn't exist
const int8 USB_CLASS_SPECIFIC_DESC_LOOKUP[USB_NUM_CONFIGURATIONS][1] =
{
//config 1
//interface 0
0
};
//if a class has an extra descriptor not part of the config descriptor,
// this lookup table defines the size of that descriptor.
//first element is the config number (if your device has more than one config)
//second element is which interface number
//set element to 0xFFFF if this config/interface combo doesn't exist
const int8 USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[USB_NUM_CONFIGURATIONS][1] =
{
//config 1
//interface 0
32
};
//////////////////////////////////////////////////////////////////
///
/// start config descriptor
/// right now we only support one configuration descriptor.
/// the config, interface, class, and endpoint goes into this array.
///
//////////////////////////////////////////////////////////////////
#DEFINE USB_TOTAL_CONFIG_LEN 41 //config+interface+class+endpoint+endpoint (2 endpoints)
const char USB_CONFIG_DESC[] = {
//IN ORDER TO COMPLY WITH WINDOWS HOSTS, THE ORDER OF THIS ARRAY MUST BE:
// config(s)
// interface(s)
// class(es)
// endpoint(s)
//config_descriptor for config index 1
USB_DESC_CONFIG_LEN, //length of descriptor size ==1
USB_DESC_CONFIG_TYPE, //constant CONFIGURATION (CONFIGURATION 0x02) ==2
USB_TOTAL_CONFIG_LEN,0, //size of all data returned for this config ==3,4
1, //number of interfaces this device supports ==5
0x01, //identifier for this configuration. (IF we had more than one configurations) ==6
0x00, //index of string descriptor for this configuration ==7
#if USB_CONFIG_BUS_POWER
0x80, //bit 6=1 if self powered, bit 5=1 if supports remote wakeup (we don't), bits 0-4 unused and bit7=1 ==8
#else
0xC0, //bit 6=1 if self powered, bit 5=1 if supports remote wakeup (we don't), bits 0-4 unused and bit7=1 ==8
#endif
USB_CONFIG_BUS_POWER/2, //maximum bus power required (maximum milliamperes/2) (0x32 = 100mA)
//interface descriptor 1
USB_DESC_INTERFACE_LEN, //length of descriptor =10
USB_DESC_INTERFACE_TYPE, //constant INTERFACE (INTERFACE 0x04) =11
0x00, //number defining this interface (IF we had more than one interface) ==12
0x00, //alternate setting ==13
2, //number of endpoins, except 0 (pic167xx has 3, but we dont have to use all). ==14
0x03, //class code, 03 = HID ==15
0x00, //subclass code //boot ==16
0x00, //protocol code ==17
0x00, //index of string descriptor for interface ==18
//class descriptor 1 (HID)
USB_DESC_CLASS_LEN, //length of descriptor ==19
USB_DESC_CLASS_TYPE, //dscriptor type (0x21 == HID) ==20
0x00,0x01, //hid class release number (1.0) ==21,22
0x00, //localized country code (0 = none) ==23
0x01, //number of hid class descrptors that follow (1) ==24
0x22, //report descriptor type (0x22 == HID) ==25
USB_CLASS_SPECIFIC_DESC_LOOKUP_SIZE[0][0], 0x00, //length of report descriptor ==26,27
//endpoint descriptor
USB_DESC_ENDPOINT_LEN, //length of descriptor ==28
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==29
0x81, //endpoint number and direction (0x81 = EP1 IN) ==30
USB_EP1_TX_ENABLE, //transfer type supported (0x03 is interrupt) ==31
USB_EP1_TX_SIZE,0x00, //maximum packet size supported ==32,33
USB_CONFIG_HID_TX_POLL, //polling interval, in ms. (cant be smaller than 10 for slow speed) ==34
//endpoint descriptor
USB_DESC_ENDPOINT_LEN, //length of descriptor ==35
USB_DESC_ENDPOINT_TYPE, //constant ENDPOINT (ENDPOINT 0x05) ==36
0x01, //endpoint number and direction (0x01 = EP1 OUT) ==37
USB_EP1_RX_ENABLE, //transfer type supported (0x03 is interrupt) ==38
USB_EP1_RX_SIZE,0x00, //maximum packet size supported ==39,40
USB_CONFIG_HID_RX_POLL //polling interval, in ms. (cant be smaller than 10 for slow speed) ==41
};
//****** BEGIN CONFIG DESCRIPTOR LOOKUP TABLES ********
//since we can't make pointers to constants in certain pic16s, this is an offset table to find
// a specific descriptor in the above table.
//NOTE: DO TO A LIMITATION OF THE CCS CODE, ALL HID INTERFACES MUST START AT 0 AND BE SEQUENTIAL
// FOR EXAMPLE, IF YOU HAVE 2 HID INTERFACES THEY MUST BE INTERFACE 0 AND INTERFACE 1
#define USB_NUM_HID_INTERFACES 1
//the maximum number of interfaces seen on any config
//for example, if config 1 has 1 interface and config 2 has 2 interfaces you must define this as 2
#define USB_MAX_NUM_INTERFACES 1
//define how many interfaces there are per config. [0] is the first config, etc.
const char USB_NUM_INTERFACES[USB_NUM_CONFIGURATIONS]={1};
//define where to find class descriptors
//first dimension is the config number
//second dimension specifies which interface
//last dimension specifies which class in this interface to get, but most will only have 1 class per interface
//if a class descriptor is not valid, set the value to 0xFFFF
const int8 USB_CLASS_DESCRIPTORS[USB_NUM_CONFIGURATIONS][1][1]=
{
//config 1
//interface 0
//class 1
18
};
#if (sizeof(USB_CONFIG_DESC) != USB_TOTAL_CONFIG_LEN)
#error USB_TOTAL_CONFIG_LEN not defined correctly
#endif
//////////////////////////////////////////////////////////////////
///
/// start device descriptors
///
//////////////////////////////////////////////////////////////////
const char USB_DEVICE_DESC[USB_DESC_DEVICE_LEN] ={
//starts of with device configuration. only one possible
USB_DESC_DEVICE_LEN, //the length of this report ==1
0x01, //the constant DEVICE (DEVICE 0x01) ==2
0x10,0x01, //usb version in bcd ==3,4
0x00, //class code ==5
0x00, //subclass code ==6
0x00, //protocol code ==7
USB_MAX_EP0_PACKET_LENGTH, //max packet size for endpoint 0. (SLOW SPEED SPECIFIES 8) ==8
USB_CONFIG_VID & 0xFF, ((USB_CONFIG_VID >> 8) & 0xFF), //vendor id ==9, 10
USB_CONFIG_PID & 0xFF, ((USB_CONFIG_PID >> 8) & 0xFF), //product id, don't use 0xffff ==11, 12
USB_CONFIG_VERSION & 0xFF, ((USB_CONFIG_VERSION >> 8) & 0xFF), //device release number ==13,14
0x01, //index of string description of manufacturer. therefore we point to string_1 array (see below) ==15
0x02, //index of string descriptor of the product ==16
#if defined(USE_USB_SERIAL_NUMBER)
0x03, //index of string descriptor of serial number ==17
#else
0x00,
#endif
USB_NUM_CONFIGURATIONS //number of possible configurations ==18
};
//////////////////////////////////////////////////////////////////
///
/// Start string descriptors
/// String 0 is a special language string, and must be defined.
/// People in U.S.A. can leave string 0 alone.
///
/// These strings are mostly only displayed during the add hardware wizard.
/// Once the operating system drivers have been installed it will usually
/// display the name from the drivers .INF. Strings are optional, their
/// need/use is specified to the host from the device descriptor (see
/// USB_DEVICE_DESC). In our example, sice we specified these strings
/// in the device descriptor then we must provide them here.
///
//////////////////////////////////////////////////////////////////
#if !defined(USB_STRINGS_OVERWRITTEN)
#if 1
#define USB_STRING_ENGLISH 4, USB_DESC_STRING_TYPE, 9, 4
#define USB_STRING(x) (sizeof(_unicode(x))+2), USB_DESC_STRING_TYPE, _unicode(x)
rom char USB_STRING_DESC[] =
{
//string 0 (must always provide this string)
USB_STRING_ENGLISH,
//string 1 - vendor (this is optional, but we specified it's use in the device descriptor)
USB_STRING("CCS"),
//string 2 - product (this is optional, but we specified it's use in the device descriptor)
USB_STRING("CCS HID Demo"),
//string 3 - serial number (this is optional, but we specified it's use in the device descriptor)
USB_STRING("12345678")
};
#else
/*
this is the old legacy way of creating a string, before the
CCS C Compiler added _unicode() macro
*/
// starting in version 5.043 of the compiler, that compiler's version of
// usb.c library no longer uses USB_STRING_DESC_OFFSET[]. but it is
// provided here for legacy.
char USB_STRING_DESC_OFFSET[]={0,4,12};
rom char USB_STRING_DESC[]={
//string 0 (must always provide this string)
4, //length of string index
USB_DESC_STRING_TYPE, //descriptor type 0x03 (STRING)
0x09,0x04, //Microsoft Defined for US-English
//string 1 - vendor (this is optional, but we specified it's use in the device descriptor)
8, //length of string index
USB_DESC_STRING_TYPE, //descriptor type 0x03 (STRING)
'C',0,
'C',0,
'S',0,
//string 2 - product (this is optional, but we specified it's use in the device descriptor)
26, //length of string index
USB_DESC_STRING_TYPE, //descriptor type 0x03 (STRING)
'C',0,
'C',0,
'S',0,
' ',0,
'H',0,
'I',0,
'D',0,
' ',0,
'D',0,
'e',0,
'm',0,
'o',0,
// string 3 - serial number (this is optional, but we specified it's use in the device descriptor)
18, //length of string index
USB_DESC_STRING_TYPE, //descriptor type 0x03 (STRING)
'1', 0,
'2', 0,
'3', 0,
'4', 0,
'5', 0,
'6', 0,
'7', 0,
'8', 0
};
#endif
#endif
#ENDIF
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Ttelmah
Joined: 11 Mar 2010
Posts: 19520
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| Posted: Sat Oct 08, 2022 8:16 am |
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Seriously, read the header at the top of the furum about Proteus.
Your problem is with the virtual USB plugin, not with the CCS driver.
It is a known problem with a lot of devices.
There are actually patches in it to make the MicroChip devices work, but
most other devices have problems. |
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Amadeus
Joined: 07 Oct 2022
Posts: 3
Location: Montreal
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| Posted: Sat Oct 08, 2022 8:27 am |
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First Thank you for your reply.
I never thought that it could be a proteus issue.
For the same reason i didn't read for the proteus header.
But according that, i have a question that coming to my mind.
Why I don't have the problem with the virtual USB when compiling with the free XC8? I mean, my chip (18F4550) is working good and VID & PID are wheel recognized same as all description and name when running with the virtual USB when I compile with XC8. Unfortunately, for some limitation reason and because the CCS compiler seem better that I buy it.
Also, I just tried an old project hex file that have been compile with the XC8 with the same chip with the same Virtual USB version (7.10 under window 11) and there's no issue with the VID & PID as well as all the description. The only difference between that old hex file and the new one it the compiler. So I'm really starting to have doubt about the issue with the virtual USB in proteus. If it was the case, i will have the same issue no matter the hex file used. right?
Once again thank you. |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19520
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| Posted: Sat Oct 08, 2022 9:45 am |
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No, because as I said, Proteus has been patched (because it had the
same problems in the past), to work with XC8... |
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Amadeus
Joined: 07 Oct 2022
Posts: 3
Location: Montreal
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| Posted: Sat Oct 08, 2022 10:14 am |
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ah I see,
It really clear now.
Is there a place (forum topic or website support) where i can find the follow up about that issue? I will search on my side but link will be appreciated.
Hope it on the plan to do a fix to correct also with CCS.
I guess it will be more on proteus side than CCS side.
Meanwhile, I will test my code with the real chip on a test board.
Thank you once again for your help. |
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dyeatman
Joined: 06 Sep 2003
Posts: 1934
Location: Norman, OK
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| Posted: Sat Oct 08, 2022 10:23 am |
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You might try the Proteus forum
https://www.eevblog.com/forum/proteus/
I doubt there is anything CCS can do to fix Proteus issues.
It is likely a problem with Proteus correctly interpreting CCS
and it will need to be patched like it was for XC8.
_________________
Google and Forum Search are some of your best tools!!!! |
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