can SD Data Logger jumpers zap a Due?

[jefflawr]

Hi,
My SD Data Logger shield works with Uno, but won't initialize with Due.
I installed jumpers to digital pins 11 (MOSI), 12 (MISO) and 13 (SCK) to connect the shield to the alternate SPI bus on the Due.
On my first attempt, I connected them wrong in this manner:
11 (MOSI) was connected to ICSP 4 (SCK2) instead of 3 (MOSI2)
12 (MISO) was connected to ICSP 6 (GND) instead of 1 (MISO1)
13 (SCK) was connected to ICSP 3 (MOSI2) instead of 4 (SCK2)
After connecting them correctly, I ran the "Files" example from the SD library download. It works fine with the Uno but SD.begin(10) fails with the Due.
Scratching my head, I came up with the following questions I'd appreciate answers to:
- Could I have fried my Due with my first bad connections? Any way to check before buying a new one?
- Should I use some six-pin female ICSP connector for better contact? My jumpers now are soldered to the shield with a female plug to connect to the ICSP pins - I read .7-.8 ohms between each shield header pins and its female plug and detected no shorts.
- Should I somehow also connect the ICSP GND, 5V, and RESET2 to analogous pins on the shield?
Thanks for any help.
Jeff

[adafruit_support_rick]

You should have your wiring as follows:
SCK (13) - ICSP 3
MISO (12) - ICSP 1
MOSI (11) - ICSP 4

Pin 1 is indicated by a white dot in the silkscreen

ICSP pinout.png (9.88 KiB) Viewed 226 times

[jefflawr]

thanks for the tip on the dot for pin 1 on ICSP.
I mistyped - I've connected the jumpers right, just described them wrong. I followed the shield tech tip about Due:
MOSI (11) ICSP 4
MISO (12) ICSP 1
SCK (13) ICSP 3
Question remains - could I have fried something with the origianl mis-wiring?
Thanks,
Jeff

[adafruit_support_bill]

I don't think any of those mis-connections would cause any damage. You had two output signals swapped (SCK and MOSI) and the only input signal was tied to ground. None of that should pose any danger to the Due.