Nils Eilers <nils.eilers@gmx.de> writes: > At the moment, the data lines have to get connected straight in a row > at a single port - but there are few ports whithout any special lines. Port A is probably the best one for this job, the only special function on there is the ADC. > This is just a puzzle... and the 644/1284 has too less ports to satisfy > all needs, especially if you want to use JTAG. Maybe I should use > another AVR with more ports (and SMD) to develop the code, and then port > it back to the 644/1284 without JTAG -- I don't know, have to think > about it. Do you really need JTAG? During the entire sd2iec development I needed it just once and in hindsight it would've been possible to find the problem[1] without it. > I have to puzzle out first, what to connect where and when... Well, at least the AVR has a sane pinout[2] and there are no unused bits in the middle of a GPIO port[3]... -ik [1] One-byte buffer overflow in a variable on the stack resulting in a null pointer access which overwrites the CPU registers. [2] pins of GPIO port 0, bits 0 to 11 on the LPC1768 (TQFP100): 46, 47, 98, 99, 81, 80, 79, 78, 77, 76, 48, 49 [3] "Pins 2, 3, 5, 6, 7, 11, 12, and 13 of [Port 1] are not available" Message was sent through the cbm-hackers mailing listReceived on 2011-06-09 19:00:13
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