87c896a0bb 
								
							
								 
							
						 
						
							
							
								
								footprints: BGA pads 0.4mm copper, 0.5mm soldermask, 0.35mm paste=stencil  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								80294dfd4a 
								
							
								 
							
						 
						
							
							
								
								gerbers update  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								797d383599 
								
							
								 
							
						 
						
							
							
								
								PCB: trac cosmetix  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								ab295886d4 
								
							
								 
							
						 
						
							
							
								
								gerbers update  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								807be26e47 
								
							
								 
							
						 
						
							
							
								
								PCB: trac cosmetix  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								1a6df7e37e 
								
							
								 
							
						 
						
							
							
								
								gerbers update  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								28caee6000 
								
							
								 
							
						 
						
							
							
								
								PCB: trac cosmetix  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								79e99bf474 
								
							
								 
							
						 
						
							
							
								
								schematics: Mark as NC all BGA pins which are NC in 12F FPGA chip.  
							
							... 
							
							
 
							
							So those pins can be recognized in PCB as having no net name.
Those pins may have use on other chips 25F, 45F or 85F but we
won't used those pins because the buard is designed to for
work for all. 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								7ba680435a 
								
							
								 
							
						 
						
							
							
								
								gerbers update  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								acb0a3d0ab 
								
							
								 
							
						 
						
							
							
								
								PCB: trac cosmetix  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								b9dbffc24d 
								
							
								 
							
						 
						
							
							
								
								gerbers update  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								6a0c0ab47f 
								
							
								 
							
						 
						
							
							
								
								PCB: silkscreen block for handwritten notes  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								4a0309ef58 
								
							
								 
							
						 
						
							
							
								
								gerbers update  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								3021028ff5 
								
							
								 
							
						 
						
							
							
								
								PCB: trac cosmetix, routing BTN_R around to allow more BGA GND VIAs  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								d99b484728 
								
							
								 
							
						 
						
							
							
								
								gerbers: trac cosmetix  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								6d07a69129 
								
							
								 
							
						 
						
							
							
								
								PCB: trac cosmetix  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								685dbb01b3 
								
							
								 
							
						 
						
							
							
								
								gerbers update  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								893f23e27c 
								
							
								 
							
						 
						
							
							
								
								PCB: add more VIAs under BGA  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								d159872c39 
								
							
								 
							
						 
						
							
							
								
								pic v2.0.9  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								854f71bdda 
								
							
								 
							
						 
						
							
							
								
								PCB: FPGA again set as visible in 3D view  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								ca1d1bb1b4 
								
							
								 
							
						 
						
							
							
								
								gerbers v2.0.9  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								676837ef3d 
								
							
								 
							
						 
						
							
							
								
								PCB v2.0.9: trac/via cosmetix  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								f7dbe05a86 
								
							
								 
							
						 
						
							
							
								
								gerbers v2.0.8  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								91b435bdfa 
								
							
								 
							
						 
						
							
							
								
								PCB v2.0.8: removing fill GND top layer under BGA, trac cosmetix  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								728c4c63db 
								
							
								 
							
						 
						
							
							
								
								gerbers update  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								ca91d6bb34 
								
							
								 
							
						 
						
							
							
								
								PCB: reducing copper traces on top layer under BGA to 0.127 mm  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								628cfc36a0 
								
							
								 
							
						 
						
							
							
								
								gerbers update  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								26ea73e434 
								
							
								 
							
						 
						
							
							
								
								PCB: trac cosmetix  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								8254f6b1bf 
								
							
								 
							
						 
						
							
							
								
								pic v2.0.7  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								42cd91b0af 
								
							
								 
							
						 
						
							
							
								
								gerbers v2.0.7  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								3aa8344fe6 
								
							
								 
							
						 
						
							
							
								
								PCB v2.0.7  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								1899935077 
								
							
								 
							
						 
						
							
							
								
								schematics v2.0.7  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								6c4868a752 
								
							
								 
							
						 
						
							
							
								
								PCB: thicker under SD card 0.127 -> 0.19 mm  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								f18467c4a7 
								
							
								 
							
						 
						
							
							
								
								PCB: thicker USB_FPGA 0.127 -> 0.19 mm  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								89a8f56097 
								
							
								 
							
						 
						
							
							
								
								PCB: thicker GPN0-27 0.127 -> 0.19 mm  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								d6ccd6d60c 
								
							
								 
							
						 
						
							
							
								
								PCB: thicker to LEDs 0.127 -> 0.19 mm  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								2709e5df41 
								
							
								 
							
						 
						
							
							
								
								PCB: thicker traces (0.5 mm) to 2.54 mm connectors J1, J2, SDRAM 0.127 -> 0.19 mm  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								5e928d9e7f 
								
							
								 
							
						 
						
							
							
								
								schematics: change P-N in GPN11,12,13 for easier wifi routing  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								f3cd6335a2 
								
							
								 
							
						 
						
							
							
								
								PCB: enlarging BGA vias to 0.419 mm, DRC passed, need trac cosmetix  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								c98ea8dcdc 
								
							
								 
							
						 
						
							
							
								
								PCB: net class enlarged VIA diameter 0.4 -> 0.419 mm  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								8d85bf2d47 
								
							
								 
							
						 
						
							
							
								
								PCB: thinner BGA traces 0.19 -> 0.127 mm (5 mil), DRC passed  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								c942bf5a60 
								
							
								 
							
						 
						
							
							
								
								PCB: aligning VIAs under BGA to 0.4 mm raster  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								ac500e7ca9 
								
							
								 
							
						 
						
							
							
								
								BGA pads increased to 0.4mm but VIAs remain the same  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								acaf1fc5d3 
								
							
								 
							
						 
						
							
							
								
								readme: todo enlarge BGA pads align VIA to BGA raster  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								8dd4311d72 
								
							
								 
							
						 
						
							
							
								
								PCB: reduced clearance 0.127->0.1 mm to accept BGA slightly larger pads  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								186c9793f8 
								
							
								 
							
						 
						
							
							
								
								BGA footprint with design rules according to Lattice Recommendations  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								321f82dc86 
								
							
								 
							
						 
						
							
							
								
								BGA layout updated with refernce to lattice document  
							
							... 
							
							
 
							
							TN1074: PCB Layout Recommendations for BGA Packages 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								5a6e8fd91d 
								
							
								 
							
						 
						
							
							
								
								BOM update  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								0131ac8882 
								
							
								 
							
						 
						
							
							
								
								PCB: C60 (B0 debouncer) smaller footprint 0805->0603, trac cosmetix  
							
							
 
							
						 
						
							7 years ago  
				
					
						
							
							
								 
						
							
							
								d0e01b6022 
								
							
								 
							
						 
						
							
							
								
								schematics: C60 (B0 debouncer) smaller capacitor 2.2uF->220nF, note PWRBTn to PROGRAMN  
							
							
 
							
						 
						
							7 years ago