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| Search found 8 matches |
| Author | Message |
|---|---|
 Topic: RC522 RFID module SPI |
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| josb86 Replies: 68 Views: 278128 |
 Forum: General CCS C Discussion Posted: Wed Oct 30, 2013 9:35 am Subject: RC522 RFID module SPI |
| I suggest you start by reading the PIC data sheet.
What clock rate is the maximum if you are running at 3.3v?. It is _not_ the normal full speed of the processor. To run at 20MHz, requires a supply ... |
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| Topic: RC522 RFID module SPI |
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| josb86 Replies: 68 Views: 278128 |
Forum: General CCS C Discussion Posted: Tue Oct 29, 2013 4:53 pm Subject: RC522 RFID module SPI |
| #use rs232(baud=9600,parity=N,xmit=PIN_C7,rcv=PIN_C6,bits=8,stream=RF)
if I understand, if I set the serial com for software I can put the TX and RX where a needed. You do that, but a software UAR ... |
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| Topic: RC522 RFID module SPI |
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| josb86 Replies: 68 Views: 278128 |
Forum: General CCS C Discussion Posted: Tue Oct 29, 2013 4:18 pm Subject: RC522 RFID module SPI |
Such a short program and so many problems detected by PCM Programmer. 
Couldn't help myself to point another problem: value[0] = spi_xfer(RFID, 0b10000000); output_low&# ... |
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| Topic: RC522 RFID module SPI |
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| josb86 Replies: 68 Views: 278128 |
Forum: General CCS C Discussion Posted: Tue Oct 29, 2013 3:32 pm Subject: #include <pru_spi.h> |
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#include <16F887.h> #device adc=16 #FUSES NOWDT //No Watch Dog Timer #FUSES HS //High speed Osc (> 4mhz for PCM/PCH) (>10mhz for ... |
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| Topic: RC522 RFID module SPI |
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| josb86 Replies: 68 Views: 278128 |
Forum: General CCS C Discussion Posted: Tue Oct 29, 2013 1:35 pm Subject: I am use a 3.3 power supply for the pic and the rfid reader. |
| I am use a 3.3 power supply for the pic and the rfid reader. the conection:
http://image.dhgate.com/desc_373242651_00.jpg SS to PIN_C2 SCK to PIN_C3 MOSI to PIN_C5 MISO to PIN_C4 GND to GN ... |
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| Topic: RC522 RFID module SPI |
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| josb86 Replies: 68 Views: 278128 |
Forum: General CCS C Discussion Posted: Tue Oct 29, 2013 11:00 am Subject: RC522 RFID module SPI |
| I am trying connect a RC522 RFID module SPI to a pic16F887 but I can't make that this read the code in a RFID card.
datasheet of MFRC522 http://www.nxp.com/documents/data_sheet/MFRC522.pdf http: ... |
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| Topic: modbus in 16f887 "modbus_phy_layer_rtu.c " this sa |
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| josb86 Replies: 2 Views: 6772 |
Forum: General CCS C Discussion Posted: Tue Apr 16, 2013 8:12 am Subject: modbus in 16f887 "modbus_phy_layer_rtu.c " this sa |
| I tried reinstall the program and before it after compile ok | |
| Topic: modbus in 16f887 "modbus_phy_layer_rtu.c " this sa |
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| josb86 Replies: 2 Views: 6772 |
Forum: General CCS C Discussion Posted: Mon Apr 15, 2013 3:15 pm Subject: modbus in 16f887 "modbus_phy_layer_rtu.c " this sa |
| I am trying to implement modbus protocol in a pic16f887. I have the version 4.140 compiler. I use the project wizard option and when I wish to compile the program, it shows a error in the line " ... | |
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