as every "self respected" geek
, i have quite an array of FPGA!i started with the X brand, but currently i find compelling to work with the free and open toolchain nextpnr, that can deploy for Lattice Ultraplus and ECP5, than i'm keeping an eye open on the Chinese Anlogic as they ranks in between of those FPGA.
these FPGA family are "way smaller" if you compare them against larger X & A parts, but for Audio DSP tweaking are already quite usefule (the large FPGA are mandatory just on ASIC replacement and high-end SDR IMHO!)
bests
andrea
I've just ordered one of these ADAU1452 boards from AliExpress (not arrived yet).
I'm a but confused about the connection method for using with Sigma Studio. Reading this thread I gather it needs to use SPI interface (unless ressitors are changed to enable I2C).
Can I talk to this with any USB to SPI interface? I have one from CSR that I used to program bluetooth modules. I would have expected Sigma Studio to talk to a com-port and the drivers in windoze do the rest?
I'm also confused about USBi. Never heard of it before. From what I can gather it is simply AD's USB to SPI interface chip, were some of you thinking the PCB had one onboard (or running in software on the missing ST micro?) so you could connect the header directly to USB? Should I understand Sigma Studio will only talk to AD's own USB-SPI chip?
Thanks for any clarification!
I'm a but confused about the connection method for using with Sigma Studio. Reading this thread I gather it needs to use SPI interface (unless ressitors are changed to enable I2C).
Can I talk to this with any USB to SPI interface? I have one from CSR that I used to program bluetooth modules. I would have expected Sigma Studio to talk to a com-port and the drivers in windoze do the rest?
I'm also confused about USBi. Never heard of it before. From what I can gather it is simply AD's USB to SPI interface chip, were some of you thinking the PCB had one onboard (or running in software on the missing ST micro?) so you could connect the header directly to USB? Should I understand Sigma Studio will only talk to AD's own USB-SPI chip?
Thanks for any clarification!
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Hi Tenson,
Also, the I²C and SPI pins are shared, and the ADAU is switching to SPI mode after the SPI_CS pin has been toggled three times (by making three fake SPI writes for example).
We were also confused because there is a 10pin port on the board looking like a standard USBi port, but it might be the JTAG of the not implanted STM32. Didn't looked further into this. Don't need, don't care.
Sigma Studio is not aware of any other interface with the exception of TCPIP->Linux->I²C (which is bugged and doesn't work correctly).
So yes !
FreeDSP made a driver, and it is working like a charm. So, you need this kind of board, four jumper wires (two for power, two for I²C) and this github repo: https://github.com/freeDSP/freeUSBi/archive/master.zip
Good luck. Tell me if you need more info, I can take a look or take pictures of how I wired my board exactly. ++
PS: The FreeUSBi driver is unsigned, if you are on windows 10 you need to reboot in advanced mode to be allowed install it.
Actually, I²C is the default communication mode of the ADAU1452. You won't need to do anything besides connecting SDA and SCL. IIRC, the I²C address is 0x76.
Also, the I²C and SPI pins are shared, and the ADAU is switching to SPI mode after the SPI_CS pin has been toggled three times (by making three fake SPI writes for example).
We were also confused because there is a 10pin port on the board looking like a standard USBi port, but it might be the JTAG of the not implanted STM32. Didn't looked further into this. Don't need, don't care.
Oh boy, you're in for a ride !
The USBi shenanigans is a way for AD to make more money. An expensive interface you may only use one time before ditching your project... By looking at the price, you can tell the interfaces for the SharcDSPs are 24k gold plated and stuffed with caviar.
Sigma Studio is not aware of any other interface with the exception of TCPIP->Linux->I²C (which is bugged and doesn't work correctly).
So yes !
- SigmaStudio will only talk to the USBi driver.
- Then the USBi driver talks to an FX2LP EZ-USB chip from Cypress Semicon, given it has the right PID and VID.
- When connected, the driver automagically pushes a firmware in the FX2LP enabling communication on the hardware level, and you're in.
FreeDSP made a driver, and it is working like a charm. So, you need this kind of board, four jumper wires (two for power, two for I²C) and this github repo: https://github.com/freeDSP/freeUSBi/archive/master.zip
Good luck. Tell me if you need more info, I can take a look or take pictures of how I wired my board exactly. ++
PS: The FreeUSBi driver is unsigned, if you are on windows 10 you need to reboot in advanced mode to be allowed install it.
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@Andreav,
Some guy found why tcpip reads are not working ! It is a dumb bug in the tcpip dll on the sigma studio side !
Here's the link, interesting read.
[BUG REPORT] Sigma Studio TCP-IP read from DSP ( With Temporary Solution ) - Q&A - SigmaDSP Processors and SigmaStudio Development Tool - EngineerZone
See you.
Some guy found why tcpip reads are not working ! It is a dumb bug in the tcpip dll on the sigma studio side !
Here's the link, interesting read.
[BUG REPORT] Sigma Studio TCP-IP read from DSP ( With Temporary Solution ) - Q&A - SigmaDSP Processors and SigmaStudio Development Tool - EngineerZone
See you.
I2C may be the default for the adau1452 but if you have bought the core board it is wired for SPI, it will need the the 0 ohm resistors changing as per the info in the schematic to work with I2C.
I'm using the Sure Electronics / Wondom DSP programmer with my core board in I2C mode.
Did you write the SigmaStudio file? Looks like you are very good at using the program.
I don't think I'm getting this to work, can someone tell me what is wrong?
I checked the resistors on the ADAU1452 core board and it is set for I2C.
I have both PCBs powered from the same PC USB ports, so they share GND and VCC.
I seem to have the programmer board communicating with the PC, SigmaStudio shows the USBi programmer as green.
I linked the SDA pin on the programmer to the SDA/MISO pin on the core board. The SCL pin on the programmer to the SCL/SCLK pin on the core board.
I tried various address options on SigmaStudio but when I request to read the EPROM all I get is endless FFFFF. Similarly if I read all registoers from the ADAU1452 I can see the value on the AuxADCs never change even if I adjust the variable pot.
EDIT: Oh I got it talking to the ADAU1452! Just restarted everything, used I2C register 0x76 and got it reading all registers and showing changes on the ADC value.
Now to work on that eprom..
I checked the resistors on the ADAU1452 core board and it is set for I2C.
I have both PCBs powered from the same PC USB ports, so they share GND and VCC.
I seem to have the programmer board communicating with the PC, SigmaStudio shows the USBi programmer as green.
I linked the SDA pin on the programmer to the SDA/MISO pin on the core board. The SCL pin on the programmer to the SCL/SCLK pin on the core board.
I tried various address options on SigmaStudio but when I request to read the EPROM all I get is endless FFFFF. Similarly if I read all registoers from the ADAU1452 I can see the value on the AuxADCs never change even if I adjust the variable pot.
EDIT: Oh I got it talking to the ADAU1452! Just restarted everything, used I2C register 0x76 and got it reading all registers and showing changes on the ADC value.
Now to work on that eprom..
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Hi Tenson,
Actually, I²C is the default communication mode of the ADAU1452. You won't need to do anything besides connecting SDA and SCL. IIRC, the I²C address is 0x76.
Also, the I²C and SPI pins are shared, and the ADAU is switching to SPI mode after the SPI_CS pin has been toggled three times (by making three fake SPI writes for example).
We were also confused because there is a 10pin port on the board looking like a standard USBi port, but it might be the JTAG of the not implanted STM32. Didn't looked further into this. Don't need, don't care.
Oh boy, you're in for a ride !
The USBi shenanigans is a way for AD to make more money. An expensive interface you may only use one time before ditching your project... By looking at the price, you can tell the interfaces for the SharcDSPs are 24k gold plated and stuffed with caviar.
Sigma Studio is not aware of any other interface with the exception of TCPIP->Linux->I²C (which is bugged and doesn't work correctly).
So yes !
The problem here is that you need and FX2LP with the right PID and VID. It is possible to change this with some Cypress tools but you will install a gazillion software that you don't need, and you don't care because...
- SigmaStudio will only talk to the USBi driver.
- Then the USBi driver talks to an FX2LP EZ-USB chip from Cypress Semicon, given it has the right PID and VID.
- When connected, the driver automagically pushes a firmware in the FX2LP enabling communication on the hardware level, and you're in.
FreeDSP made a driver, and it is working like a charm. So, you need this kind of board, four jumper wires (two for power, two for I²C) and this github repo: https://github.com/freeDSP/freeUSBi/archive/master.zip
Good luck. Tell me if you need more info, I can take a look or take pictures of how I wired my board exactly. ++
PS: The FreeUSBi driver is unsigned, if you are on windows 10 you need to reboot in advanced mode to be allowed install it.
Hi,
Sorry my ignorance, but you only need this board (at USD$4.33 shipped) to program the ADAU1401/1701/1452? Or you need other hardware?
Thanks in advance for your reply!
Nice tanks alot, I may have swithced the jumper res but didnt remebered that :x
@revber thanks for the schematics ! Useful !
@mga2009 you just need that board yes. Take a good read in the FreeUSBi documentation before ordering. One board type is a bit more daunting to work with. Not dramatic tho.
I've read the thread carefully.
I am using the ADAU1452 from Aliexpress with my FreeUSBi, and managed to compile and download (I am not getting any error) and it seems to work because every time I press F7 I hear a "bip" from my speakers... the thing is I am not getting any sound!!
I configured everything as Tenson thankfully showed, but still no sound.
I am using analog inputs/outputs without any sound.
Any help would be greatly appreciated
Cheers
I am using the ADAU1452 from Aliexpress with my FreeUSBi, and managed to compile and download (I am not getting any error) and it seems to work because every time I press F7 I hear a "bip" from my speakers... the thing is I am not getting any sound!!
I configured everything as Tenson thankfully showed, but still no sound.
I am using analog inputs/outputs without any sound.
Any help would be greatly appreciated
Cheers
Yes, I've set the routing matrix just as you showed, and on the right side, every "Serial Out Port 0/1/2/3" is set to "From corresponding DSP core output channels".
One strange thing is that in my "Schemtaic", there is no "Output 1", from 0 it jumps to 2 up to 47.
I managed to get my DSP sounding. I grabbed the default schematic that I've got from the seller and started striping parts.
It seems that not all Aliexpress's ADAU 1452 are the same. Mine has an STM32 single-chip micro controller on the board. Others don't seem to have it.
My analog inputs are 4, 5, 6 and 7 and my DAC outputs are 0,1, 2, 3, 4, 5, 6 and 7 and the "routing matrix" seems to be different, as it's working with a different configuration that the one showed before.
Still, I did not wrote the E2Prom yet...
I attached a few pictures of my DSP board and the codec board. I am not an expert, but It would be great if we could have a complete "How to" guide for thes ADAU1452 boards, as they are very cheap (around USD$55 shipped) and quite powerful, actually quite a lot more than the standard miniDSP 2x4 which is around USD$80 w/o shipping.
It seems that not all Aliexpress's ADAU 1452 are the same. Mine has an STM32 single-chip micro controller on the board. Others don't seem to have it.
My analog inputs are 4, 5, 6 and 7 and my DAC outputs are 0,1, 2, 3, 4, 5, 6 and 7 and the "routing matrix" seems to be different, as it's working with a different configuration that the one showed before.
Still, I did not wrote the E2Prom yet...
I attached a few pictures of my DSP board and the codec board. I am not an expert, but It would be great if we could have a complete "How to" guide for thes ADAU1452 boards, as they are very cheap (around USD$55 shipped) and quite powerful, actually quite a lot more than the standard miniDSP 2x4 which is around USD$80 w/o shipping.
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I second this. It would be very nice to have a guide to get one of these boards up and going.