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afterburner
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hw 2.1 - added pull down resistor to EN pin 

This prevents accidental enablement of VPP during
Arduino reboot. ATF chips interpreted such state
as the Erase command and cleared the fuses.
This commit is contained in:
ole00 2019-04-13 14:03:04 +01:00
parent ba9cd08031
commit fc819a54c8
4 changed files with 24 additions and 3 deletions
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gerbers/afterburner_fab_2_0.zip
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pcb/afterburner2_fab.pcb
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@ -9,7 +9,7 @@ Grid[25.00mil 0.0000 0.0000 1]
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Flags("showdrc,nameonpcb,newfullpoly,snappin")
Flags("showdrc,nameonpcb,clearnew,newfullpoly,snappin")
Groups("1,c:2,s:3:4")
Styles["Signal,10.00mil,40.00mil,20.00mil,10.00mil:Power,25.00mil,40.00mil,20.00mil,10.00mil:Fat,40.00mil,40.00mil,20.00mil,10.00mil:Skinny,8.00mil,36.00mil,20.00mil,10.00mil"]
@ -1481,6 +1481,18 @@ Element["" "" "" "" 1550.00mil 2880.00mil 5.00mil -50.00mil 0 100 ""]
(
Pin[0.0000 0.0000 60.00mil 30.00mil 66.00mil 34.00mil "1" "1" ""]
)
Element["" "" "" "" 3150.00mil 2300.00mil 0.0000 0.0000 0 100 ""]
(
Pin[0.0000 0.0000 60.00mil 30.00mil 66.00mil 34.00mil "1" "1" "selected"]
)
Element["" "" "" "" 3150.00mil 2700.00mil 0.0000 0.0000 0 100 ""]
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Pin[0.0000 0.0000 60.00mil 30.00mil 66.00mil 34.00mil "1" "1" ""]
)
Layer(1 "top" "copper")
(
@ -1626,7 +1638,6 @@ Layer(2 "bottom" "copper")
Line[1520.00mil 2950.00mil 1425.00mil 2855.00mil 10.00mil 20.00mil "clearline"]
Line[2350.00mil 2950.00mil 1520.00mil 2950.00mil 10.00mil 20.00mil "clearline"]
Line[2500.00mil 2800.00mil 2350.00mil 2950.00mil 10.00mil 20.00mil "clearline"]
Line[2650.00mil 2800.00mil 2500.00mil 2800.00mil 10.00mil 20.00mil "clearline"]
Line[3050.00mil 1450.00mil 2900.00mil 1300.00mil 40.00mil 20.00mil "clearline"]
Line[3050.00mil 2470.00mil 3050.00mil 1450.00mil 40.00mil 20.00mil "clearline"]
Line[2950.00mil 2570.00mil 3050.00mil 2470.00mil 40.00mil 20.00mil "clearline"]
@ -1718,6 +1729,12 @@ Layer(2 "bottom" "copper")
Line[1650.00mil 450.00mil 1650.00mil 400.00mil 25.00mil 20.00mil ""]
Line[1525.00mil 500.00mil 1500.00mil 475.00mil 25.00mil 20.00mil ""]
Line[2275.00mil 1350.00mil 2275.00mil 1325.00mil 25.00mil 20.00mil ""]
Line[1650.00mil 2880.00mil 1650.00mil 2825.00mil 40.00mil 20.00mil "clearline"]
Line[1650.00mil 2825.00mil 1700.00mil 2775.00mil 40.00mil 20.00mil "clearline"]
Line[1700.00mil 2775.00mil 2050.00mil 2775.00mil 40.00mil 20.00mil "clearline"]
Line[2500.00mil 2800.00mil 3050.00mil 2800.00mil 10.00mil 20.00mil "clearline"]
Line[3050.00mil 2800.00mil 3150.00mil 2700.00mil 10.00mil 20.00mil "clearline"]
Line[3150.00mil 2300.00mil 3050.00mil 2300.00mil 10.00mil 20.00mil "clearline"]
Polygon("clearpoly,fullpoly")
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[1025.00mil 200.00mil] [1075.00mil 150.00mil] [3200.00mil 150.00mil] [3250.00mil 200.00mil] [3250.00mil 2950.00mil]
@ -1756,6 +1773,7 @@ Layer(3 "info" "copper")
Text[1820.00mil 2830.00mil 1 100 "3.3V" ""]
Text[1720.00mil 2830.00mil 1 100 "RST" ""]
Text[2920.00mil 2830.00mil 1 100 "AIN5" ""]
Text[1620.00mil 2830.00mil 1 100 "5V" ""]
)
Layer(4 "outline" "outline")
(
@ -1809,6 +1827,8 @@ Layer(6 "top silk" "silk")
Line[3025.00mil 275.00mil 3225.00mil 275.00mil 10.00mil 20.00mil ""]
Line[3025.00mil 275.00mil 3025.00mil 225.00mil 10.00mil 20.00mil "clearline"]
Line[3225.00mil 275.00mil 3225.00mil 225.00mil 10.00mil 20.00mil "clearline"]
Line[3150.00mil 2350.00mil 3150.00mil 2450.00mil 10.00mil 20.00mil "clearline"]
Line[3150.00mil 2650.00mil 3150.00mil 2550.00mil 10.00mil 20.00mil "clearline"]
Arc[3200.00mil 1400.00mil 25.00mil 25.00mil 10.00mil 20.00mil 0 90 ""]
Arc[3200.00mil 1400.00mil 25.00mil 25.00mil 10.00mil 20.00mil -90 90 ""]
Arc[73.1764mm 47.2701mm 125.00mil 125.00mil 10.00mil 20.00mil 0 -90 "clearline"]
@ -1830,7 +1850,7 @@ Layer(6 "top silk" "silk")
Text[1275.00mil 1275.00mil 0 104 "layout" "clearline"]
Text[1925.00mil 2375.00mil 0 104 "MT3608 module" "clearline"]
Text[1850.00mil 1775.00mil 0 104 "LED" "clearline"]
Text[1275.00mil 1175.00mil 0 126 "v. 2.0" "clearline"]
Text[1275.00mil 1175.00mil 0 126 "v. 2.1" "clearline"]
Text[1145.00mil 1075.00mil 0 148 "Afterburner" "clearline"]
Text[1150.00mil 1075.00mil 0 148 "Afterburner" "clearline"]
Text[3075.00mil 2000.00mil 0 104 "C2" "clearline"]
@ -1845,6 +1865,7 @@ Layer(6 "top silk" "silk")
Text[3075.00mil 950.00mil 0 104 "C2" "clearline"]
Text[1975.00mil 500.00mil 0 104 "ZIF socket 24 pins" "clearline"]
Text[1485.00mil 1615.00mil 0 104 "GND" "clearline"]
Text[3125.00mil 2475.00mil 0 104 "R3" "clearline"]
Polygon("clearpoly")
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