Well 1985+ Atari 8-bit computers seem to be using 65C02 CPU code name Sally not to be confused with 6502C, Sally was a customized 6502 chip used in later Atari 8-bit computers.
It has a HALT signal on pin 35 and a...
Use Global Pin Control Low Register (PORTx_GPCLR) :https://forum.pjrc.com/threads/64970-Teensy-3-x-Global-Pin-Control-(Low-High)-Register-PORTx_GPCLR-PORTx_GPCHR-How-to
Who knows obviously seems like a code issue perhaps you should show us the full code.
Look up ^^^^^^ Forum Rule: Always post complete source code & details to reproduce any issue!
As I was promising yesterday I came up with 8bit PORT D Global Pin Control Low Register (PORTx_GPCLR) Example. ;)
/* PORTD Global Pin Control Low Register (PORTx_GPCLR) Example.
Global pin control
The two...
Well I've been messing with this some more and I think I know how this works finally.
To set my D0 to D8 (8-bit) pins on Port D with 3-state logic which are defined as this:
#define D7 5 //PTD 07, ...
PORTx_GPCLR --- PORTx_GPCHR example:)
So I'm looking for Teensy 3.x example; yes I've been on the interwebs Google blah blah blah.
Basically I need to Tri-State (MUX(0) pin disable) several pins on Port D in one go...
Sounds like you are powering the Teensy 3.2 with two power source at the same time. You need to separate VIN from VUSB if using external power supply at the same time.
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