Post by amak on Feb 6, 2024 4:48:15 GMT
I purchased a new C64 Mini NTSC region from Amazon, but when I plug in the power I get no output. The power LED does not tun on. I’m using an official Raspberry Pi power supply (5.1V 2.5A). I’ve tried other power supplies, HDMI cables and displays but it’s the same result.
I opened the case to inspect it and there is no apparent issue. The power LED legs were not touching the board. I probed with a multimeter and there is 5V at the micro USB pad. There is also 3.3V at the UART. The heat sink does gets slightly warm so it appears to be getting power.
I get the following output with a serial connection and it does not progress further.
Does anyone know what the problem could be? Is it a hardware issue or is the flash corrupted?
I opened the case to inspect it and there is no apparent issue. The power LED legs were not touching the board. I probed with a multimeter and there is 5V at the micro USB pad. There is also 3.3V at the UART. The heat sink does gets slightly warm so it appears to be getting power.
The board has a uboot and recovery button. I tried FEL mode by holding down the uboot button, but I get the following error after running boot.sh.
USB device 001:014 Allwinner A20 xxxxxxxx:xxxxxxxx:xxxxxxxx:xxxxxxxx
found DT name in SPL header: sun7i-a20-olinuxino-micro
Stack pointers: sp_irq=0x00002000, sp=0x00005E08
Reading the MMU translation table from 0x00020000
Disabling I-cache, MMU and branch prediction... done.
=> Executing the SPL... done.
usb_bulk_send() ERROR -7: Operation timed outHELLO! BOOT0 is starting!
boot0 version : 3.0.0
dram size =256
current block is 2 and last block is 10.
current block is 3 and last block is 10.
current block is 4 and last block is 10.
current block is 5 and last block is 10.
current block is 6 and last block is 10.
current block is 7 and last block is 10.
sum=0x960c4390
src_sum=0x960c4390
The file stored in start block 2 is perfect.
Ready to disable icache.
Jump to secend Boot.
[ 0.175]
U-Boot 2011.09-rc1 (Apr 02 2018 - 11:17:04) Retro Games Ltd
[ 0.182]version: 1.1.0
[ 0.185]pmbus: ready
[ 0.290]PMU: AXP209
[ 0.294]PMU: AXP20x found
[ 0.296]PMU: bat ratio = 100
## No elf image at address 0x4a08b188
## Not an ELF image, assuming binary
## Using bootline (@ 0x0): <NULL>
## Starting vxWorks at 0x4a08b188 ..Does anyone know what the problem could be? Is it a hardware issue or is the flash corrupted?
