Sometimes when we need to program an avr microcontroller on ISP (In System Programming ) we need a data cable ( In system programmer cable ) to transfer the compiled data to microcontroller .
This transfer of data (read or write ) can be done with many types of programming cable , but the easiest mode to program an avr chip with ISP ( like Atmega32 ) is to use a In system programmer cable like in schematic presented here .
For this avr In system programmer cable we need just : one Mother parallel port connector (DB25) ,one single in line 5 pins mother connector four 220 ohms resistors , 5 wire cable
The configuration for this isp programming cable is:
| DB25 | ISP | DB25 |
[TD="width: 67"]2[/TD]
[TD="width: 66"]-[/TD]
[TD="width: 60"]12[/TD]
[TD="width: 67"]3[/TD]
[TD="width: 66"]-[/TD]
[TD="width: 60"]11[/TD]
[TD="width: 67"]6[/TD]
[TD="width: 66"]SCK[/TD]
[TD="width: 60"]-[/TD]
[TD="width: 67"]7[/TD]
[TD="width: 66"]MOSI[/TD]
[TD="width: 60"]-[/TD]
[TD="width: 67"]9[/TD]
[TD="width: 66"]RST[/TD]
[TD="width: 60"]-[/TD]
[TD="width: 67"]10[/TD]
[TD="width: 66"]MISO[/TD]
[TD="width: 60"]-[/TD]
[TD="width: 67"]25[/TD]
[TD="width: 66"]GND[/TD]
[TD="width: 60"]-
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