Hello!
I have this Gen_L v1.0 board no SD card slot on it. I have an external SD card reader (that cheap 5pin type used for arduino projects), I have defined the pins in marlin, I have uploaded an autostart gcode and it starts about 1/3 of the times. I can always read the content of the card with pronterface, I don't have any read/write issues, this autostart thingy only works a handful of times for whatever reason. I had a reprap discount LCD in the drawer and I have connected it. The SD card reader on the LCD works all the time, the gcode always runs on powerup. I want to keep this as a low power project as it will be battery operated so preferably I don't need the screen just the reliable SD card.
Questions:
Can I connect my SD card reader to some of the EXP1 EXP2 pins and expect it to work better? (I'm not sure if there are dedicated MOSI/MISO/CS pins in EXP1/EXP2 please tell me if there are)
Do you have any tips to make the SD card reader more reliable on startup?
Do you know an SD card reader that is maybe better in working at startup?
As a last resort, is the discount screen pcb going to work if I desolder the LCD and keep the board only?
