Post by mariotheissl on May 30, 2018 7:25:14 GMT
Hi,
did anybody try to access the SPI bus with the DMA controller? I would like to read data from the ads1274 ADC (24Bit sigma delta) with the SPI bus. The following article describes the same problem with an MBED lpc1768.
kevinchen.co/assets/projects/surfboard/surfboard-paper.pdf
Basic description of the circuit:
DRDY pin of the ADS1274 goes low, when data is ready to read
DOUT pin of ADS1274 is connected to MISO of SPI
SCLK is connected to SCK of SPI
The clock frequency should be 27MHz.
It would be great if anybody could give me information how to solve this problem with shieldbuddy
Best regards
did anybody try to access the SPI bus with the DMA controller? I would like to read data from the ads1274 ADC (24Bit sigma delta) with the SPI bus. The following article describes the same problem with an MBED lpc1768.
kevinchen.co/assets/projects/surfboard/surfboard-paper.pdf
Basic description of the circuit:
DRDY pin of the ADS1274 goes low, when data is ready to read
DOUT pin of ADS1274 is connected to MISO of SPI
SCLK is connected to SCK of SPI
The clock frequency should be 27MHz.
It would be great if anybody could give me information how to solve this problem with shieldbuddy
Best regards
