On 7/3/2014 7:04 AM, Greg King wrote: > On 2014-07-03 1:20 AM, Jim Brain wrote: > > >> On 7/2/2014 11:40 PM, Jim Brain wrote: > >> >>> did, no change. > > >> Just to clarify, the uart_putc() is in one place, but I hooked up the LA >> to it, so I could see the pins all the time. 0xfe all the time. >> >> I want to make sure I am using the right pinout, as I am using this: >> >> http://archive.6502.org/datasheets/mos_6500-1_one-chip_microcomputer_oct_1986.pdf >> > > That datasheet says that a reset changes all I/O bits to logic 1. So, > you should see 0xff, not 0xfe! [Pssst, did you remember to set all > AVR Port B lines to input? ;-) ] :-) AVR pins default to input :-) But, I set DDR to 0 and even put the pullups on... No change. I traced it to a bad channel 0 of my cheap LA. I guess it's time to upgrade to a new one. Anyway, it's FF... Jim Message was sent through the cbm-hackers mailing listReceived on 2014-07-04 02:00:02
Archive generated by hypermail 2.2.0.