notes.txt

# Notes

# Final TODO
    - [ ] Extend board for a nicer fit
    - [ ] Increase charge caps capacitance
    - [ ] Replace programming port with TC2030

# Boards (V2)
    1) Hacked to try to make flash work. Probably NFG.
    2) Replaced flash to K9GAG08U0E. Removed: Q2 and C1. Not enumerating through dmesg.
    3) Populated with MT29F64G08CBABAWP
        - Works!
    4-7) Not touched
    8) Poached IC
    9) Not touched
    10) Sent to Crowdsupply

# Boards (V3)
    1) Replaced IC to SM3257ENQBA. Works! Accidentally wired flash backwards.
        - Used SM3257ENBA-P0816
    2) "Bad Block over setting 0X11"
        - No diodes!
        - Trying Star_SM3257ENAA_SM3261AB_M0531
        - Worked (with SM3257ENAA) This IC is okay!
    3) Not showing up
        - Different flash (didn't have enough)
    4) Not showing up - Gets hot
    5) Worked with Star_SM3257ENAA_SM3261AB_M0531

# Boards (V4)
    - ** Important ** : Make sure Virtualbox USB is set to USB 1.1
    - Used SM3257ENBA-P0816
        - Previsioned all 20, no visible errors.

## Parts
  - ATTINY24A-CCUR  - BGA version
  - ATTINY24-20PU   - DIP version
  - K9gag08u0e-Scb0 - NAND Flash
  - SM3255AA        - What dmesg thinks the chip is
  - SM3257EN        - Part number on the chip
  - SM3257ENAA      - Reported by SMI Mass Production Tool
  - 838-22-004-10-001101

## Notes
```
[machinehum@whitebox Star_SM3257ENAA_N0726]$ find . -iname "SM3257ENAA*.FFW"
./UFD_ALL_ForceFW/SM3257ENAA.FFW
```
This is the "ISP" or firmware, source: https://www.usbdev.ru/articles/a_smi/ispcantbefound/

## SMI Mass QC tool
Settings Password: 320
Debug Password: 1111

## Links and Notes
  - [Russian Site 1](https://www.usbdev.ru/articles/testmod/)
  - [Russian Site 2](https://www.usbdev.ru/files/smi/)
  - [SMI MP Tool](https://www.usbdev.ru/files/smi/smimptool/)
  - [Notes on Flash](https://www.elinfor.com/knowledge/practical-guide-for-flash-memory-p-10889)
  - [SMI MP Tool 2](https://flashboot.ru/files/file/243/)
  - [ST's Part](https://www.st.com/en/microcontrollers-microprocessors/st72681.html)