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add back SPI_CLOCK_DIVx defines may needed by some library

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Note:
better use SPI.setFrequency()
This commit is contained in:
Markus Sattler 2015-05-07 22:16:51 +02:00
parent 7f4a10062b
commit 49fc1980fe
1 changed files with 19 additions and 0 deletions
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19
libraries/SPI/SPI.h
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@ -24,6 +24,25 @@
#include <Arduino.h>
#include <stdlib.h>
// This defines are not representing the real Divider of the ESP8266
// the Defines match to an AVR Arduino on 16MHz for better compatibility
#if F_CPU == 80000000L
#define SPI_CLOCK_DIV2 0x00101001 //8 MHz
#define SPI_CLOCK_DIV4 0x00241001 //4 MHz
#define SPI_CLOCK_DIV8 0x004c1001 //2 MHz
#define SPI_CLOCK_DIV16 0x009c1001 //1 MHz
#define SPI_CLOCK_DIV32 0x013c1001 //500 KHz
#define SPI_CLOCK_DIV64 0x027c1001 //250 KHz
#define SPI_CLOCK_DIV128 0x04fc1001 //125 KHz
#else
#define SPI_CLOCK_DIV2 0x00241001 //8 MHz
#define SPI_CLOCK_DIV4 0x004c1001 //4 MHz
#define SPI_CLOCK_DIV8 0x009c1001 //2 MHz
#define SPI_CLOCK_DIV16 0x013c1001 //1 MHz
#define SPI_CLOCK_DIV32 0x027c1001 //500 KHz
#define SPI_CLOCK_DIV64 0x04fc1001 //250 KHz
#endif
const uint8_t SPI_MODE0 = 0x00; ///< CPOL: 0 CPHA: 0
const uint8_t SPI_MODE1 = 0x01; ///< CPOL: 0 CPHA: 1
const uint8_t SPI_MODE2 = 0x10; ///< CPOL: 1 CPHA: 0