Chinese low cost eval board Supposedly based on
https://github.com/ohdsp/DSP-ADAU1452/blob/master/Drawings/Schematic/DSP-ADAU1452-2.0-Schematic.pdf (https://www.diyaudio.com/forums/digital-line-level/309680-low-cost-adau1452-china-board-2.html)
А в ДШ заглянуть?
ATML=ATMEL
H= Industrial/NiPdAu fymish
5= 2015 год
46 = 46я неделя
2EC=AT24C256C
L= 1.7V min
The EEPROM used differs between versions, it can be I2C or SPI flash, so just check the actual chips datasheet for the below settings.
I2C
Memory size: 262144bits
Page size: 64bytes
Write speed: 1000Khz (or lower)
Number of Adress Bytes: 2
SPI
Memory size: 1048576bits
Page size: 256bytes
Write speed: 10000Khz
Number of Adress Bytes: 3
The jumper in the picture is set to write protect. Switch it to the other position while writing the firmware in Sigmastudio with
'Self-boot memory -> Write latest Compilation through DSP'
Figure out how to use the unpopulated SRAM spot
with 23A1024 or similar
https://docs.rs-online.com/5f59/0900766b8114ca33.pdf
First tests show that this board is designed to use the ADAU1452 master SPI bus with either:
- `EEPROM`
- `SRAM`
not both together. (`SS_M/MP0` does not have any select logic behind it)
https://github.com/Ark-Linux/sigma-tcp
- https://github.com/aventuri/sigma_tcp
- https://github.com/MCUdude/SigmaDSP
- https://ez.analog.com/dsp/sigmadsp/f/q-a/164008/sharing-tcpi-interface-for-sigma-studio-using-esp8266-or-esp32
- https://www.diyaudio.com/community/threads/low-cost-adau1452-china-board.309680/page-17
The Arduino/ESP32 "controller" side of project aims to be a midi controlled mixer, using a Bitstream 3x
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