Open drain output to serial port input (ADSP-218x)

Started by in comp.dsp13 years ago 8 replies

Hello, I want to know if it is licit to connect an open drain output from some device (W682510 voice codec by Winbond) to the RXD0 pin...

Hello, I want to know if it is licit to connect an open drain output from some device (W682510 voice codec by Winbond) to the RXD0 pin on serial port 0 of an ADSP-2181, and in affirmative case, which value to use for the pullup resistor. At the beginning I thought it was OK, but have not been able to make it work. DSP to codec is OK, I am generating a sinusoid from a table in the DSP, v...