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52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
#ifndef HSPI_H
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#define HSPI_H
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#include "SPIImpl.h"
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#include "SPIdef.h"
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extern "C" {
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#include "spi_register.h"
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#include "ets_sys.h"
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#include "osapi.h"
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#include "os_type.h"
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}
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class HSPI : public SPIImpl
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{
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public:
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virtual void begin();
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virtual void end();
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virtual void setBitOrder(uint8_t bitOrder);
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virtual void setDataMode(uint8_t dataMode);
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virtual void setClockDivider(uint8_t clockDiv);
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virtual uint8_t transfer(uint8_t data);
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virtual uint16_t transfer16(uint16_t data);
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virtual void transfer(void *buf, size_t count);
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private:
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uint32_t _clkDiv;
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uint32_t *spi_fifo;
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const uint32_t hspi_port = 1;
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const uint32_t hspi_fifo_size = 16;
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private:
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inline void hspi_wait_ready(void){while (READ_PERI_REG(SPI_FLASH_CMD(hspi_port))&SPI_FLASH_USR);}
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inline void hspi_start_tx(){SET_PERI_REG_MASK(SPI_FLASH_CMD(hspi_port), SPI_FLASH_USR);}
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inline void hspi_prepare_tx(uint32_t bytecount)
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{
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uint32_t bitcount = bytecount * 8 - 1;
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WRITE_PERI_REG(SPI_FLASH_USER1(hspi_port), (bitcount & SPI_USR_OUT_BITLEN) << SPI_USR_OUT_BITLEN_S);
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}
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inline void hspi_prepare_txrx(uint32_t bytecount)
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{
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uint32_t bitcount = bytecount * 8 - 1;
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WRITE_PERI_REG(SPI_FLASH_USER1(hspi_port), ((bitcount & SPI_USR_OUT_BITLEN) << SPI_USR_OUT_BITLEN_S) |
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((bitcount & SPI_USR_DIN_BITLEN) << SPI_USR_DIN_BITLEN_S));
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}
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};
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#endif//HSPI_H
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