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jspencer
Joined: 22 Dec 2003
Posts: 57
Location: Boise, ID USA
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| Port code from 18F4550 to 18F2455 problem |
 Posted: Fri Jan 13, 2006 5:49 pm |
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I have my current program working on the 18F4550 (CCS USB DEV KIT) and once I changed the fuses and setup for the 18F2455 (My hardware) it won't initialize or enumerate. Is there something obvious that I am missing? This is just a little test program to figure out what is going on.
| Code: |
#include <18F2455.h>
#device adc=8
#FUSES NOWDT //No Watch Dog Timer
#FUSES WDT128 //Watch Dog Timer uses 1:128 Postscale
#FUSES HS //High speed Osc (> 4mhz)
#FUSES NOPROTECT //Code not protected from reading
#FUSES NOBROWNOUT //No brownout reset
#FUSES BORV20 //Brownout reset at 2.0V
#FUSES PUT //Power Up Timer
#FUSES NOCPD //No EE protection
#FUSES NOSTVREN //Stack full/underflow will not cause reset
#FUSES NODEBUG //No Debug mode for ICD
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#FUSES NOWRT //Program memory not write protected
#FUSES NOWRTD //Data EEPROM not write protected
#FUSES NOIESO //Internal External Switch Over mode disabled
#FUSES FCMEN //Fail-safe clock monitor enabled
#FUSES NOPBADEN //PORTB pins are configured as digital I/O on RESET
#FUSES NOWRTC //configuration not registers write protected
#FUSES NOWRTB //Boot block not write protected
#FUSES NOEBTR //Memory not protected from table reads
#FUSES NOEBTRB //Boot block not protected from table reads
#FUSES NOCPB //No Boot Block code protection
#FUSES NOLPT1OSC //Timer1 configured for higher power operation
#FUSES NOMCLR //Master Clear pin used for I/O
#FUSES NOXINST //Extended set extension and Indexed Addressing mode disabled (Legacy mode)
#FUSES PLL1 //No PLL PreScaler
#use delay (clock=20000000)
#define GREEN_LED PIN_A0
#define YELLOW_LED PIN_A1
#define I2C_SCL PIN_C1
#define I2C_SDA PIN_C0
#define LED_ON output_low
#define LED_OFF output_high
/*
* USB Definitions & includes
*/
#define USB_EP1_TX_ENABLE USB_ENABLE_INTERRUPT
#define USB_EP1_TX_SIZE 8
#define USB_EP1_RX_ENABLE USB_ENABLE_INTERRUPT
#define USB_EP1_RX_SIZE 16
#define OUTPUT_REPORT_SIZE USB_EP1_TX_SIZE
#include <pic18_usb.h>
#include "usb_desc_hid.h" // the local modified version
#include <usb.c>
void check_usb(void) {
if(!usb_enumerated()) {
LED_ON(YELLOW_LED);
LED_OFF(GREEN_LED);
while(!usb_enumerated()) {}
}
LED_OFF(YELLOW_LED);
}
void main() {
setup_adc_ports(NO_ANALOGS|VSS_VDD);
setup_adc(ADC_OFF|ADC_TAD_MUL_0);
setup_spi(FALSE);
setup_wdt(WDT_OFF);
setup_timer_0(RTCC_INTERNAL);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_timer_3(T3_DISABLED|T3_DIV_BY_1);
setup_comparator(NC_NC_NC_NC);
setup_vref(FALSE);
setup_low_volt_detect(FALSE);
setup_oscillator(False);
while (TRUE) {
usb_init();
check_usb();
LED_ON(GREEN_LED);
LED_OFF(YELLOW_LED);
delay_ms(1000);
LED_ON(YELLOW_LED);
LED_OFF(GREEN_LED);
delay_ms(1000);
}
}
****** usb_desc_hid.h file that has been modified for project ******
#IFNDEF __USB_DESCRIPTORS__
#DEFINE __USB_DESCRIPTORS__
#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, 2, // Report count = 16 bits (2 bytes) SDM CHange from 2
0x81, 2, // Input (Data, Var, Abs)
0x19, 1, // Usage minimum
0x29, 8, // Usage maximum
0x75, 8, // Report size = 8 (bits)
0x95, 16, // 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 int16 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 int16 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
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
0x32, //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) (try 1.10) ==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
0x03, //transfer type supported (0x03 is interrupt) ==31
USB_EP1_TX_SIZE,0x00, //maximum packet size supported ==32,33
250, //polling interval, in ms. (cant be smaller than 10) ==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
0x03, //transfer type supported (0x03 is interrupt) ==38
USB_EP1_RX_SIZE,0x00, //maximum packet size supported ==39,40
10 //polling interval, in ms. (cant be smaller than 10) ==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 int16 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 (pic167xx is 1.1) ==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
0x61,0x04, //vendor id (0x04D8 is Microchip, or is it 0x0461 ??)
0x20,0x00, //product id ==11,12 //don't use ffff says usb-by-example guy. oops
0x00,0x01, //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
0x00, //index of string descriptor of serial number ==17
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 this alone.
///
/// You must define the length else get_next_string_character() will not see the string
/// Current code only supports 10 strings (0 thru 9)
///
//////////////////////////////////////////////////////////////////
//the offset of the starting location of each string. offset[0] is the start of string 0, offset[1] is the start of string 1, etc.
char USB_STRING_DESC_OFFSET[]={0,4,12};
char const USB_STRING_DESC[]={
//string 0
4, //length of string index
USB_DESC_STRING_TYPE, //descriptor type 0x03 (STRING)
0x09,0x04, //Microsoft Defined for US-English
//string 1
8, //length of string index
USB_DESC_STRING_TYPE, //descriptor type 0x03 (STRING)
'C',0,
'C',0,
'S',0,
//string 2
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
};
#ENDIF
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Darren Rook
Joined: 06 Sep 2003
Posts: 287
Location: Milwaukee, WI
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| Posted: Fri Jan 13, 2006 10:32 pm |
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No CPUDIV fuse?
Doesn't look like you're setting the internal 4MHz USB clock right (see CPUDIV fuse)
_________________
I came, I saw, I compiled. |
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jspencer
Joined: 22 Dec 2003
Posts: 57
Location: Boise, ID USA
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| Posted: Sat Jan 14, 2006 8:09 am |
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Thanks for looking at it Darren. As I was leaving work last night I thought that maybe I was leaving a fuse out or not setting something right as it is just the usb that is not working. I'll give it a try on Monday unless I sneak into the office this weekend.
James |
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jspencer
Joined: 22 Dec 2003
Posts: 57
Location: Boise, ID USA
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| Solution found |
| Posted: Mon Jan 16, 2006 12:36 pm |
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Thanks again Darren for the help. I got it functioning and the fuses ended up looking like this for reference.
| Code: |
#fuses HSPLL,NOWDT,NOPROTECT,NOLVP,NODEBUG,USBDIV,PLL5,CPUDIV1,VREGEN,NOMCLR
#use delay (clock=48000000)
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