Hi,
I am trying to test the SPI connection between the AFE4300 chip with a FTDI chip FT2232H.
Currently I am having difficulty in getting a respond from the AFE4300EVM board.
I took the MMb3 board out and do the following connections between the AFE4300EVM and FT2232H:
Power connector:
AVDD_---------------------- 3.3v source (FT2232H mini module)
GND --------------------- GND (FT2232H mini module)
Serial connector:
STE <-------------------- Chip select pin (FT2232H mini module)
SCLK<---------------------SCLK (FT2232H mini module)
SIMO<---------------------MOSI (FT2232H mini module)
SOMI---------------------->MISO (FT2232H mini module)
RDY------------------------> input pin
RESET<-------------------- output pin
CLK_MCU<-----------------signal generator 1 Mhz
Using a logic analyzer I can see that the MOSI are sending the command that I want to send.
However there is no data coming back when I write 0x20 to read from register 0x00
Also the RDY line does give me the pulse to tell that the conversion is complete.
My questions are:
1. am I missing any connection?
2. do I always need to wait for the RDY to pulse low before I can perform a read data register?
