Re: [softrock40] Re: Butterfly and Si570
- At 12:37 PM 1/6/2008, you wrote:
>Hello Cecil,I don't mean to use the DSP to implement all the DSP it's too small,
>the ADC von Wavefront contains already a HP filter and suppresses
>the DC offset. The DSP needs per mode of operation (CW, USB, LSB
>etc..) ever EEPROM with the filter data, max 2 * 512 taps possible.
>For mode of operation change-over that is only switched EEPROM.
>Details see in the circuit of the funkamateur.
>73 Gerd, DM2CDB
but now that you mention it I remember now about the built in high
pass filter. So I would not need the DSP instead I could use a USB
to codec controller so it will look like a sound card to the PC and
let the PC do the processing.
"Blessed are the cracked, for they shall let in the light."