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https://github.com/espruino/Espruino.git
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99222ee989
Extended to support both SPI channel (HSPI and VSPI) Todo: More testing with other SPI based hardware Testing with two or more devices on same SPI channel (using seperate CE pins) Input from SPI device Find a faster solution. Each byte has a lot of overhead in Espruino.
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/*
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* This file is designed to support spi functions in Espruino for ESP32,
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* a JavaScript interpreter for Microcontrollers designed by Gordon Williams
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*
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* Copyright (C) 2016 by Rhys Williams (wilberforce)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* ----------------------------------------------------------------------------
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* This file is designed to be parsed during the build process
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*
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* Contains ESP32 board specific functions.
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* ----------------------------------------------------------------------------
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*/
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#include "jspininfo.h"
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#include "jshardware.h"
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#include "driver/gpio.h"
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#include "driver/spi_master.h"
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// Convert an Espruino pin to an ESP32 pin number.
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gpio_num_t pinToESP32Pin(Pin pin);
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#define SPIMax 2
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struct SPIChannel{
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spi_device_handle_t spi;
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bool spi_read;
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uint32_t g_lastSPIRead;
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spi_host_device_t HOST;
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};
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struct SPIChannel SPIChannels[SPIMax];
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void SPIChannelsInit();
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void jshSPISetup( IOEventFlags device, JshSPIInfo *inf );
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int jshSPISend( IOEventFlags device, int data );
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void jshSPISend16( IOEventFlags device, int data );
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void jshSPISet16( IOEventFlags device, bool is16 );
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void jshSPIWait( IOEventFlags device );
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void jshSPISetReceive(IOEventFlags device, bool isReceive);
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