kiewic
Joined: 24 Apr 2010
Posts: 10
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| Making USB And Serial Work Together [solved] |
 Posted: Sun May 16, 2010 11:03 am |
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Hello. I have a PIC 18F2550 running with a 20MHz crystal and the following configuration.
| Code: | #include <18F2550.h>
#device adc=8
#FUSES NOWDT //No Watch Dog Timer
#FUSES WDT128 //Watch Dog Timer uses 1:128 Postscale
#FUSES HSPLL //Internal RC Osc INTRC
#FUSES NOPROTECT //Code not protected from reading
#FUSES BROWNOUT //No brownout reset NOBROWNOUT
#FUSES BORV20 //Brownout reset at 2.0V
#FUSES PUT //No Power Up Timer NOPUT
#FUSES NOCPD //No EE protection
#FUSES STVREN //Stack full/underflow will 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 IESO //Internal External Switch Over mode enabled
#FUSES FCMEN //Fail-safe clock monitor enabled
#FUSES PBADEN //PORTB pins are configured as analog input channels 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 MCLR //Master Clear pin enabled
#FUSES LPT1OSC //Timer1 configured for low-power operation
#FUSES NOXINST //Extended set extension and Indexed Addressing mode disabled (Legacy mode) NOXINST
#FUSES PLL5 //Divide By 12(48MHz oscillator input) PLL12
#FUSES CPUDIV1 //System Clock by 4 CPUDIV4
#FUSES USBDIV //USB clock source comes from PLL divide by 2
#FUSES VREGEN //USB voltage regulator enabled
#use delay(clock=48000000) |
Now, I need to read information from a serial RFID reader. It works at 2400 bps.
I have the following configuration for the serial communication, but it is reading garbage.
| Code: | | #use rs232(baud=2400, rcv=PIN_A0, ENABLE=PIN_A1, stream=RFID, PARITY=N, bits=8) |
I have also tried with other baud values, like 12000, 480, 4800, 1200, 6000 and 960. But nothing works.
Last edited by kiewic on Sun May 16, 2010 7:24 pm; edited 1 time in total |
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