Build your own USB tuner- will work with Minitioune
Posted: Tue Mar 31, 2015 2:46 pm
Hello,
As its not sure we always be able to get the tuner we need, as there are difficult to find when they don't completely disappear from the market,
I have decided two weeks ago to build my own.
We have many solution for finding good Nim Tuner.
The USB chips used with almost USB tuner of the market is the CY7C86013A.
(Prof7500 = NIM EARDA + CY7C86013A, STB5980 = NIM EARD + CY7C86013A ......)
( on the other side there is only the Nim Tuner and capacitors)
We can see on this side, that there are only component for power supplying the Nim tuner + power supply for LNB and CYC786013A for usb interface.
I have began three weeks ago to study this chip, but it is a very powerful chip that takes time to develop for the first time with it.
So I have chosen to test also a second solution less powerful but less "eating time" : use the FT2232H we already use with Digilite.
I use the D2XX driver, one channel for I2C and one channel for TS transfer.
Yesterday I have finished to develop CheckTutiouneUSB that works very well with this "homebrewed USB tuner": here is the tuner: As you can see, there is not too much component:
-The Nim Tuner
-The FT2232H Usb mini module
-Just a flat cable between both
Nothing else if we already have power supply.
Here I have added a 3.3v regulator
1V is yet external, but will be soon made on this board.
I hope Tutioune will be able to use this USB tuner very soon.
I have finished the I2C implementation to have the Nim working.
I have now to develop the part for getting the TS. (as you can see on the first photo, DMA transfer or FIFO transfer is not yet implemented)
So this could be a solution easy to use, there are thousand of NIM tuner on the market that are waiting us.
73
Jean Pierre F6DZP
As its not sure we always be able to get the tuner we need, as there are difficult to find when they don't completely disappear from the market,
I have decided two weeks ago to build my own.
We have many solution for finding good Nim Tuner.
The USB chips used with almost USB tuner of the market is the CY7C86013A.
(Prof7500 = NIM EARDA + CY7C86013A, STB5980 = NIM EARD + CY7C86013A ......)
( on the other side there is only the Nim Tuner and capacitors)
We can see on this side, that there are only component for power supplying the Nim tuner + power supply for LNB and CYC786013A for usb interface.
I have began three weeks ago to study this chip, but it is a very powerful chip that takes time to develop for the first time with it.
So I have chosen to test also a second solution less powerful but less "eating time" : use the FT2232H we already use with Digilite.
I use the D2XX driver, one channel for I2C and one channel for TS transfer.
Yesterday I have finished to develop CheckTutiouneUSB that works very well with this "homebrewed USB tuner": here is the tuner: As you can see, there is not too much component:
-The Nim Tuner
-The FT2232H Usb mini module
-Just a flat cable between both
Nothing else if we already have power supply.
Here I have added a 3.3v regulator
1V is yet external, but will be soon made on this board.
I hope Tutioune will be able to use this USB tuner very soon.
I have finished the I2C implementation to have the Nim working.
I have now to develop the part for getting the TS. (as you can see on the first photo, DMA transfer or FIFO transfer is not yet implemented)
So this could be a solution easy to use, there are thousand of NIM tuner on the market that are waiting us.
73
Jean Pierre F6DZP