pilo Posted May 14, 2003 Report Posted May 14, 2003 hi!I found a new PIC18f programmer :http://members.naspa.net/djs/software/pic18f.htmlwhich is a plug on the parallel port... And the woftware works under linux.I think I can use it without any care?thanks!
pilo Posted May 14, 2003 Author Report Posted May 14, 2003 hi!I found a new PIC18f programmer :http://members.naspa.net/djs/software/pic18f.htmlwhich is a plug on the parallel port... And the woftware works under linux.I think I can use it without any care?thanks!
TK. Posted May 15, 2003 Report Posted May 15, 2003 Hi Pilo,the problem with this programmer is, that it uses the low-voltage programming mode and therefore allocates pin RB5, which - once the mode has been enabled - cannot be used for any other purpose anymore. Consequentialy you cannot drive a LCD module, which requires RB5 as data pin.Best Regards, Thorsten.
TK. Posted May 15, 2003 Report Posted May 15, 2003 Hi Pilo,the problem with this programmer is, that it uses the low-voltage programming mode and therefore allocates pin RB5, which - once the mode has been enabled - cannot be used for any other purpose anymore. Consequentialy you cannot drive a LCD module, which requires RB5 as data pin.Best Regards, Thorsten.
pilo Posted May 15, 2003 Author Report Posted May 15, 2003 hum... But, I put the pic on the programmer, then put it in the midibox... Because I use RB5 in the programmaing sequence then i can't use it anymore??!!?? Maybe I should download the PIC18F datasheet....I want to make a stand-alone programmer (not in the midibox)... ???
pilo Posted May 15, 2003 Author Report Posted May 15, 2003 hum... But, I put the pic on the programmer, then put it in the midibox... Because I use RB5 in the programmaing sequence then i can't use it anymore??!!?? Maybe I should download the PIC18F datasheet....I want to make a stand-alone programmer (not in the midibox)... ???
TK. Posted May 15, 2003 Report Posted May 15, 2003 Hi,Because I use RB5 in the programmaing sequence then i can't use it anymore??!!??yes!From the PIC18F452 datasheetThe High Voltage Programming mode is always available, regardless of the state of the LVP bit, by applying VIHH to the MCLR# pinWhile in low voltage ICSP mode, the RB5 pin can no longer be used as a general purpose I/O pin.Best Regards, Thorsten.
TK. Posted May 15, 2003 Report Posted May 15, 2003 Hi,Because I use RB5 in the programmaing sequence then i can't use it anymore??!!??yes!From the PIC18F452 datasheetThe High Voltage Programming mode is always available, regardless of the state of the LVP bit, by applying VIHH to the MCLR# pinWhile in low voltage ICSP mode, the RB5 pin can no longer be used as a general purpose I/O pin.Best Regards, Thorsten.
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now