3.4 Jasper Platform
To build a Jasper Dev Console PCBA, one should look at the released Jasper DEV PCBA (X819115-001 - PCBA,JASPER,DEV KIT,ICS,HYNIX MEM,512MB FLSH). For debug and testing purposes on a retail PCBA, make the following changes to emulate 99% of a real DEV PCBA:
This is a small resistor, which makes me think this somehow changes the part numbers that are shown to the kernel(makes it think its a dev?)
1) Enable Debug Spew
Stuff R1C4 with X800601-001 RES,S/M,LF,1.0KOHM,5%,1/16W,0402 (was NO-STUFF)
Unstuff R1P2 (was X800590-001 RES,S/M,LF,10KOHM,5%,1/16W,0402)
Pin header locations on the lamprey board itself.
2) Populate Lamprey Headers
Stuff J2B1 with X804259-001 CONN,HDR,TH,LF,2X7,DUAL-ROW,VERT, PIN 14 KEYED,2.4 TAILS
Stuff J1D2 with X804260-001 CONN,HDR,TH,LF,2X5,DUAL-ROW,VERT, PIN 10 KEYED,2.4
This following part makes the changes for the nand type, depending on the configuration of the resistors near the flash it tells the console its size
3) Configure for 256MB Flash if PCBA is not ARCADE SKU (no need flash modification for ARCADE SKU)
Stuff R2D6 with X800590-001 RES,S/M,LF,10KOHM,5%,1/16W,0402
Stuff U2E1 with X809112-002 IC,S/M,LF,FLASH MEMORY,256MX8,K9F2G08U0A-P,TSOP-48 or X817006-001 IC,S/M,LF,FLASH MEMORY,256MX8,HY27UF082G2B,(57NM),TSOP-48
Unstuff R2D5 with X800590-001 RES,S/M,LF,10KOHM,5%,1/16W,0402
Unstuff R2D7 with X800590-001 RES,S/M,LF,10KOHM,5%,1/16W,0402
Stuff R2D8 with X800590-001 RES,S/M,LF,10KOHM,5%,1/16W,0402
These are your typical LEDs that devs have on POST
4) CheckStop LED
Stuff R8B6 with X800427-001 RES,S/M,LF,2KOHM,1%,1/16W,0402
Stuff R8A5 with X800601-001 RES,S/M,LF,1.0KOHM,5%,1/16W,0402
Stuff Q8B6 with X801037-001 BJT,S/M,LF,NPN,SWITCH,2N2222,SOT23
Stuff D8B4 with X801078-001 LED,LF,GREEN,QTLP601C-AG,0603
Connecting the lamprey into their corresponding ports
5) When building into a console, stuff the following Lamprey cables following standard installation procedures:
X801796-001 CABLE ASSEMBLY, MOBO, LAMPREY, SMC KERNEL DEBUG PORT
X801797-001 CABLE ASSEMBLY, MOBO, LAMPREY, SPI PORT
Finally what we have no idea what the lamprey does, any member with more experience in 360 hardware could give us a rundown what or where this value is
6) Reset the console type from Retail to Dev (Agile doc H03710)
RETAIL 00000002
DEVELOPMENT 00000001