SPIconfig.h

// -------------------------------------
// DEFINE SPI HARDWARE PINS for TEENSY 3.6 to INTAN RHD2132 interface
// Created: 10 July 2018, JE
//  SPI_init(), SPI_verify(), and SPI_getAmplInfo() all try to configure 2x Intan RHD2132
//  Future work: figure out what to do if 2nd amp is not plugged in
// ------------------------------------
const int CSpinA = 10; // chipSelect amp A
const int CSpinB = 9;  // chipSelect amp B, added June 19
const int MOSIpin = 11;
const int MISOpin = 12;
const int SCKpin = 13; //changed in version 2 to avoid LED light illuminating
const double INTAN_MAX_SPI_TRANSFER_RATE = 24000000; // 24 MHz is max SPI CLK rate for  RHD2000 see page 15 of datasheet.
const int CLK_DIV = 1;  // divisor for max transfer rate.  Setting SPI CLK = Max transfer rate, sometimes leads to convert errors. JE 20 Dec 2016
const int SPI_TRANSFER_RATE_DIV = INTAN_MAX_SPI_TRANSFER_RATE / CLK_DIV;
//const int SPI_TRANSFER_RATE_DIV = 24000000;
//const int SPI_TRANSFER_RATE_DIV = 8000000;

SPISettings SPIsettingsFast(SPI_TRANSFER_RATE_DIV, MSBFIRST, SPI_MODE0); // normal faster SPI bus settings for converting adc data, etc.
//SPI_MOD0 transfer at the lead rising edge of the clock? NP01/06/2022





// function for config and begin of SPI interface
// use of header and extern taken from here: http://electronics.stackexchange.com/questions/21025/call-serial-print-in-a-separate-tab-header-file
extern void SPI_init();
extern void SPI_verify();
extern uint16_t SPI_getAmplInfo();