Editing Ernie

Ernie is the codename for PSVita Syscon.

= Pictures =

* <imgur>xzonnpr.png</imgur>(source ifixit, denoted id 1148KM458)
* <imgur>Pmsm2bJ.jpg</imgur>(denoted red)
* <imgur>fVyL18x.jpg</imgur>
* <imgur>AS3Dzti.png</imgur>
* <imgur>BN2JA8g.png</imgur>
* <imgur>7avGDL7.png</imgur>
* <imgur>eYTpTOI.png</imgur>
* <imgur>hwzb7TN.png</imgur>
* <imgur>hwCbt3f.png</imgur>

= Talking to Ernie (RL78) =

<pre>
Connecting the tool
Tool : E2 Lite, Tool Num : 5ES000599, Interface : 1 wire UART
Emulator's supply power : OFF
Emulator's firmware version：3.00.00.007
Connecting to the target device
Query the device information.
Device Name : R5F1ZCRK
Devcie Code : 10 00 06
Firmware Version : V3.03
Code Flash 1 (Address : 0x00000000,  Size : 384 K,  Erase Size : 1 K)
Data Flash 1 (Address : 0x000F1000,  Size : 8 K,  Erase Size : 1 K)

Disconnecting the tool
Operation completed.
</pre>

= Talking to Ernie (78K0R) =

<pre>
02 1b 10 ef 04 dc fd fd ff ff 03 44 37 39 46 30 31 30 39 20 20 f8 03 00 00 00 ff ff ff 0f 03
</pre>

<pre>
Device: D79F0109
</pre>

<pre>
STX: 0x02
LEN: 0x1B
Vendor Code: NEC (0x10)
Macro Extension Code: 0xEF
Macro Function Code: 0x04
Device Extension Codes 1 and 2: 0xDC FD
User Flash Rom Last Adress: ff ff 03 (0x40000)
Device Name (10 bytes) 44 37 39 46 30 31 30 39 20 20 (D79F0109  )
Security Flag: 0xF8
Boot Block Number: 0x03
Start Block: 00 00 
End Block : 00 ff
Reserved: FF FF 
Checksum: 0x0F
ETX: 0x03
</pre>

= How to talk =

{| class="wikitable"
|-
! E1/E20/E2 Emulator, E2 Emulator Lite !! Syscon !! Notes
|-
| TOOL0 || TOOL0 || Pull up the signals of the TOOL0 pin at 1 kΩ and do not arrange these signal lines in parallel with or
across other high-speed signal lines.
|-
| RESET || RESET || When flash programming by the programming software is to be performed, the RESET# pin should be designed so that the reset signal on the user system does not conflict with the reset signal from the E1/E20/E2/E2 Lite.
|-
| GND || GND || The pins of the connector marked "GND" must be at the same ground level as the VSS pin of the MCU.
|-
| VDD || VDD || Connect the VDD of the connector to the VDD (power supply) of the user system. Use the emulator within the power supply voltage of 1.8 V to 5.5 V and within the operating voltage range of the MCU.
|-
| EVDD || EVDD ||
|}

= Identifying VDD/EVDD =

<pre>
killing evdd kills Tool0 but not I2C, but vdd kills both
2.5V is vdd, 1.8V is evdd0/1
evdd voltage is used for reset for some weird reason
</pre>

= Some RL78 pics (testpoints, layout, blank vs not blank, options) =

<imgur>e9FGck8.png</imgur>

<imgur>nq4LID7.png</imgur>

<imgur>6ASfhB1.png</imgur>

<imgur>yAWXJnK.png</imgur>

<imgur>kKhSCdm.png</imgur>

= Some 78K0R pics =

* <imgur w=500>FEBXKkk.png</imgur>
* <imgur w=500>jZgJNwF.png</imgur>

== Pinout ==

* VDD, TOOL0 and RESET known
* TOOL1, FLMD0 and GND Unknown
* F9, F5, F6, J3, J10, G10, F10, H1, H4 possible
* F9, F10, G10, J10, most likely candidates respectively to TOOL0 TOOL1 RESET FLMD0
* F6 is VDD, F9 TOOL0, G10 RESET

= Debugger Points for Glitching =

<pre>
J1     EVDD
C10, F6(Optional)  VDD
F11    GND
F9     TOOL0 
G10    FLMD0 (On Old 78K0R pstv/psvita 1000 boards) 
F10    RESET 
</pre>

== Glitch Victim Versions ==
<pre>
Ernie version: 0x1030505
Ernie version: 0x1030511
Unknown version: 3.30
RL78 Version: 0x0303
</pre>