Is it confirmed that WRT54G v6 (BCM5352EKFBG) does not have A12 line routed to the processor? Is this line available somewhere else? This processor does not have the green pcb border, like the EKBG does. There is a picture attached.
A12 May be routed to the cpu by an inner layer or from the bottom (other side) by a via. But from what i remember when i did this mod, A12 is required only for the 32 mb chips and not for the 16MB Chips.
That is correct. But I have placed a 32 MB chip and apparently pin 36 (A12) is not connected in the pcb. The "challenge" is to figure if A12 line is present somewhere else in the pcb, and then wire it to pin 36 to enable the full 32 MB.
dragon-fly wrote:
lucasmendes wrote:
Hello all,
Is it confirmed that WRT54G v6 (BCM5352EKFBG) does not have A12 line routed to the processor? Is this line available somewhere else? This processor does not have the green pcb border, like the EKBG does. There is a picture attached.
A12 May be routed to the cpu by an inner layer or from the bottom (other side) by a via. But from what i remember when i did this mod, A12 is required only for the 32 mb chips and not for the 16MB Chips.
That is correct. But I have placed a 32 MB chip and apparently pin 36 (A12) is not connected in the pcb. The "challenge" is to figure if A12 line is present somewhere else in the pcb, and then wire it to pin 36 to enable the full 32 MB.
dragon-fly wrote:
lucasmendes wrote:
Hello all,
Is it confirmed that WRT54G v6 (BCM5352EKFBG) does not have A12 line routed to the processor? Is this line available somewhere else? This processor does not have the green pcb border, like the EKBG does. There is a picture attached.
A12 May be routed to the cpu by an inner layer or from the bottom (other side) by a via. But from what i remember when i did this mod, A12 is required only for the 32 mb chips and not for the 16MB Chips.
Does it work right now? do you see 16 mb in the router? did you try the NVRam commands to get access to the full 32 mb? because by default and after factory resets, it will only see 16 mb until you tell the router it has 32 mb.
If that doesnt work, then i unfortunately have no knowledge of where A12 leads to on the PCB for WRT54G V6
That is correct. But I have placed a 32 MB chip and apparently pin 36 (A12) is not connected in the pcb. The "challenge" is to figure if A12 line is present somewhere else in the pcb, and then wire it to pin 36 to enable the full 32 MB.
dragon-fly wrote:
lucasmendes wrote:
Hello all,
Is it confirmed that WRT54G v6 (BCM5352EKFBG) does not have A12 line routed to the processor? Is this line available somewhere else? This processor does not have the green pcb border, like the EKBG does. There is a picture attached.
A12 May be routed to the cpu by an inner layer or from the bottom (other side) by a via. But from what i remember when i did this mod, A12 is required only for the 32 mb chips and not for the 16MB Chips.
Does it work right now? do you see 16 mb in the router? did you try the NVRam commands to get access to the full 32 mb? because by default and after factory resets, it will only see 16 mb until you tell the router it has 32 mb.
If that doesnt work, then i unfortunately have no knowledge of where A12 leads to on the PCB for WRT54G V6
Right after the chip change, it didn't boot at all. I grounded pin 36 (A12) and it booted with 8 MB (proving A12 is not routed). Then changed nvram_init from 0x02 to 0x0A, and it booted with 16 MB. I believe now 32 MB would only be possible if we had A12 routed.
I'm using the RAM V54C3256164VAT7, which is a 16M x 16, with RAS A0-A12 and CAS A0-A8.
Is it confirmed that WRT54G v6 (BCM5352EKFBG) does not have A12 line routed to the processor? Is this line available somewhere else?
A12 is present on the flash chip.
Yeah, he is talking about the PCB (the actual board) where A12 is not routed to the CPU, and he wants to know where to route it so he can access the full 32 MB.
Yeah, he is talking about the PCB (the actual board) where A12 is not routed to the CPU, and he wants to know where to route it so he can access the full 32 MB.
Sounds good... I'll try to figure if the flash address bus is the same as the ram address bus and then wire A12 from one to another.
Yeah, he is talking about the PCB (the actual board) where A12 is not routed to the CPU, and he wants to know where to route it so he can access the full 32 MB.
Sounds good... I'll try to figure if the flash address bus is the same as the ram address bus and then wire A12 from one to another.
(BTW, eager to figure out USB pin location too)
No luck here, guys. I wired both A12's and got the blinking power light of death... fortunately I could revert to the old 16 MB configuration. Apparently there are really two address busses, one for the flash and one for the RAM.
