Serial programmer for AVR :
Could you please share such an experience because I never really had one... I always use some cycles plus some ms start up time from fusebits settings and never faced any problems.poorchava said:AVRs are very easily brickable when messing with oscillator options
Why would you want to disable ISP? The real problem is when you use ATtiny13, where reset gets involved with GPIO pin. There you have a tough situation in deed.Projetos_afg said:The AVR ISP can be disable, and you will need an HVPP programmer to "unlock" the microcontroller.
Market leader or not, there will be advantages and disadvantages escorting their MCUs, as with all manufacturers. Search the web and find what is suitable for you. I use AVR and I am satisfied. On PIC I don't have experience. However I know a lot of people switched from PIC to AVR. I do not know even one example of the other way around! ;-)PA3040 said:what is the solution done by microchips to overcome this drove back and as a world number one market leader in 8bit MCU sales
Could you please share such an experience because I never really had one... I always use some cycles plus some ms start up time from fusebits settings and never faced any problems.
Why would you want to disable ISP? The real problem is when you use ATtiny13, where reset gets involved with GPIO pin. There you have a tough situation in deed.
ISP will not be available anymore, once the reset pin will be used as GPIO.
U must be doing something wrong. I've got Win7 32-bit version and avrdude+burn-o-mat+usbasp works perfectly.I need burn AT90 series. I try the AVRDUDE, but isn't compatible with windows 7 (the comunication with USBasp works well, but all HEX files generated are 0 bytes, I runed in administrator mode).
Not true. This is the case for PIC16, PIC18, PIC24F and dsPIC30F.As I know the all family of PIC's instruction operation time is (Fosc/4)( not sure ) but AVR instruction operation time = Fosc.( Approximately ) I need to know, does pic have MCU's, that instruction operation time = Fosc
thanks in Advance
If you sent wrong combination of CKSEL fusebits then the micro is bricked until you provide correct crystal (the one for which you have actually programmed the fusebits), or use HVPP programmer, or perform paralell erase procedure by hand (this is doable, but many attempts are needed)Could you please share such an experience because I never really had one... I always use some cycles plus some ms start up time from fusebits settings and never faced any problems.Quote Originally Posted by poorchava
AVRs are very easily brickable when messing with oscillator options
U must be doing something wrong. I've got Win7 32-bit version and avrdude+burn-o-mat+usbasp works perfectly.
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