banneduser Posted October 22, 2003 Posted October 22, 2003 I´ve tried everithing but I can´t program it. I only can read 3FFF 3FFF....any idea? ???I also tried to build a parallel programmer and have similar results. I´m thinking the chip have a failure.thanksNacho
TK. Posted October 23, 2003 Posted October 23, 2003 Hi Nacho,if verify fails with both programmers, possibly the10k pull-down resistor is not connected to pin RB3?Best Regards, Thorsten.
banneduser Posted October 24, 2003 Author Posted October 24, 2003 I follow the same board from the page module. I´ve also tried to connect it to GND and same results. How can I check pic is working?
TK. Posted October 25, 2003 Posted October 25, 2003 So long as the programmer reads only '1's, the PIC won't work --- hm, no idea...Best Regards, Thorsten.
banneduser Posted October 26, 2003 Author Posted October 26, 2003 What´s the configuration to configure pic16f877 for the MidiPlus with 16 pots and 2 button configuration? (osilator, fuses)
TK. Posted October 26, 2003 Posted October 26, 2003 This information is embedded in the .hex file, so that the programmer should regognize it automatically. However, here a snapshot with the config settings which are valid for every PIC16F based MIDIbox project:Best Regards, Thorsten.
banneduser Posted October 27, 2003 Author Posted October 27, 2003 thanks!! ;DAnother question, can I programm the PIC with a low voltage programmer???????bye!
TK. Posted October 28, 2003 Posted October 28, 2003 No, this requires a special programmer and special software --- and the LVP allocates pin RB3 so that it cannot be used by the firmware.Best Regards, Thorsten.
banneduser Posted October 30, 2003 Author Posted October 30, 2003 Still not working :'(I send you a list with some of the parts i´m using, maybe something is wrongdiode zener 9.1v (diode 8.7v)2 transistor 2n3904 (bc547)cap 100uf16v and 22u25v
TK. Posted November 1, 2003 Posted November 1, 2003 Did you take the different pinning of the 2n3904 into account?Best Regards, Thorsten.
banneduser Posted November 1, 2003 Author Posted November 1, 2003 That was the problem!!!!! :o :o :) I´m going to test it now.1º Do you know if this error can damage the pic???.2º Can I use a 9.1 diode with out any problem??thanksssss
banneduser Posted November 1, 2003 Author Posted November 1, 2003 It workssss ;D, I can´t believe it!! thanksI only have a little problemm, when reading sometimes I get all ones, and in othe moment I read the code I write in the chip.bye!
banneduser Posted November 3, 2003 Author Posted November 3, 2003 It workssss , I can´t believe it!! thanks I only have a little problemm, when reading sometimes I get all ones, and in othe moment I read the code I write in the chip. bye!
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