Vekatech / VK_RZ_A1H_LCD_demo

Lcd companion boards support (VKLCD50RTA & VKLCD70RT)

What is this ?

This is a demo program using Renesas RGA library & USB Camera to demonstrate VK-RZ/A1H's companion boards workability.

Supported companion Boards:

VKLCD50RTA

/media/uploads/tvendov/front_view_hmi_50.png /media/uploads/tvendov/side_view_hmi_50.png

VKLCD70RT

/media/uploads/tvendov/front_view_hmi_70.png/media/uploads/tvendov/side_view_hmi_70.png /media/uploads/tvendov/front_view_lvds.png/media/uploads/tvendov/back_view_lvds.png

How to Configure ?

You can choose which display is installed by altering the lcd_panel.h file

Leave the active one & comment out the others:

#define     LCD_VDC5_CH0_PANEL                  LCD_CH0_PANEL_VKLCD50RTA
//#define     LCD_VDC5_CH0_PANEL                  LCD_CH0_PANEL_VKLCD70RT

You can alter the whole demo with your pictures if you like:

How to compile ?

  • The Demo can be compiled in 3 modes:
    • I. Execution from the internal 10-MB on-chip SRAM.
      • After import in the online compiler just leave only the VKRZA1H_RAM.sct & delete all others linker files in the TOOLCHAIN_ARM_STD folder.
      • Save the result binary in the SD Card (<SD>:\vkrza1\lcd_sample ), altering vkrza1h.ini by this way
    • II. Execution from the on-board serial FALSH in dual (32-MB) mode.
      • After import in the online compiler just leave only the VKRZA1H_DOUBLE.sct & delete all others linker files in the TOOLCHAIN_ARM_STD folder.
      • Drag & drop the result binary in MBED disk, (previously inited in double flash mode)
    • III. Execution from the on-board serial FALSH in single (16-MB) mode.
      • After import in the online compiler just leave only the VKRZA1H_SINGLE.sct & delete all others linker files in the TOOLCHAIN_ARM_STD folder.
      • Drag & drop the result binary in MBED disk, (previously inited in single flash mode )

Quick presentation:

Other demos ?

More demos you can find on our FTP

hal/common/SPI.cpp@0:6435b67ad23c, 2017-02-16 (annotated)

Committer:
tvendov
Date:
Thu Feb 16 10:23:48 2017 +0000
Revision:
0:6435b67ad23c
Initial lcd support (VKLCD50RTA & VKLCD70RT companion boards)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tvendov 0:6435b67ad23c 1 /* mbed Microcontroller Library
tvendov 0:6435b67ad23c 2 * Copyright (c) 2006-2013 ARM Limited
tvendov 0:6435b67ad23c 3 *
tvendov 0:6435b67ad23c 4 * Licensed under the Apache License, Version 2.0 (the "License");
tvendov 0:6435b67ad23c 5 * you may not use this file except in compliance with the License.
tvendov 0:6435b67ad23c 6 * You may obtain a copy of the License at
tvendov 0:6435b67ad23c 7 *
tvendov 0:6435b67ad23c 8 * http://www.apache.org/licenses/LICENSE-2.0
tvendov 0:6435b67ad23c 9 *
tvendov 0:6435b67ad23c 10 * Unless required by applicable law or agreed to in writing, software
tvendov 0:6435b67ad23c 11 * distributed under the License is distributed on an "AS IS" BASIS,
tvendov 0:6435b67ad23c 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
tvendov 0:6435b67ad23c 13 * See the License for the specific language governing permissions and
tvendov 0:6435b67ad23c 14 * limitations under the License.
tvendov 0:6435b67ad23c 15 */
tvendov 0:6435b67ad23c 16 #include "SPI.h"
tvendov 0:6435b67ad23c 17 #include "critical.h"
tvendov 0:6435b67ad23c 18
tvendov 0:6435b67ad23c 19 #if DEVICE_SPI
tvendov 0:6435b67ad23c 20
tvendov 0:6435b67ad23c 21 namespace mbed {
tvendov 0:6435b67ad23c 22
tvendov 0:6435b67ad23c 23 #if DEVICE_SPI_ASYNCH && TRANSACTION_QUEUE_SIZE_SPI
tvendov 0:6435b67ad23c 24 CircularBuffer<Transaction<SPI>, TRANSACTION_QUEUE_SIZE_SPI> SPI::_transaction_buffer;
tvendov 0:6435b67ad23c 25 #endif
tvendov 0:6435b67ad23c 26
tvendov 0:6435b67ad23c 27 SPI::SPI(PinName mosi, PinName miso, PinName sclk, PinName ssel) :
tvendov 0:6435b67ad23c 28 _spi(),
tvendov 0:6435b67ad23c 29 #if DEVICE_SPI_ASYNCH
tvendov 0:6435b67ad23c 30 _irq(this),
tvendov 0:6435b67ad23c 31 _usage(DMA_USAGE_NEVER),
tvendov 0:6435b67ad23c 32 #endif
tvendov 0:6435b67ad23c 33 _bits(8),
tvendov 0:6435b67ad23c 34 _mode(0),
tvendov 0:6435b67ad23c 35 _hz(1000000) {
tvendov 0:6435b67ad23c 36 // No lock needed in the constructor
tvendov 0:6435b67ad23c 37
tvendov 0:6435b67ad23c 38 spi_init(&_spi, mosi, miso, sclk, ssel);
tvendov 0:6435b67ad23c 39 aquire();
tvendov 0:6435b67ad23c 40 }
tvendov 0:6435b67ad23c 41
tvendov 0:6435b67ad23c 42 void SPI::format(int bits, int mode) {
tvendov 0:6435b67ad23c 43 lock();
tvendov 0:6435b67ad23c 44 _bits = bits;
tvendov 0:6435b67ad23c 45 _mode = mode;
tvendov 0:6435b67ad23c 46 SPI::_owner = NULL; // Not that elegant, but works. rmeyer
tvendov 0:6435b67ad23c 47 aquire();
tvendov 0:6435b67ad23c 48 unlock();
tvendov 0:6435b67ad23c 49 }
tvendov 0:6435b67ad23c 50
tvendov 0:6435b67ad23c 51 void SPI::frequency(int hz) {
tvendov 0:6435b67ad23c 52 lock();
tvendov 0:6435b67ad23c 53 _hz = hz;
tvendov 0:6435b67ad23c 54 SPI::_owner = NULL; // Not that elegant, but works. rmeyer
tvendov 0:6435b67ad23c 55 aquire();
tvendov 0:6435b67ad23c 56 unlock();
tvendov 0:6435b67ad23c 57 }
tvendov 0:6435b67ad23c 58
tvendov 0:6435b67ad23c 59 SPI* SPI::_owner = NULL;
tvendov 0:6435b67ad23c 60 SingletonPtr<PlatformMutex> SPI::_mutex;
tvendov 0:6435b67ad23c 61
tvendov 0:6435b67ad23c 62 // ignore the fact there are multiple physical spis, and always update if it wasnt us last
tvendov 0:6435b67ad23c 63 void SPI::aquire() {
tvendov 0:6435b67ad23c 64 lock();
tvendov 0:6435b67ad23c 65 if (_owner != this) {
tvendov 0:6435b67ad23c 66 spi_format(&_spi, _bits, _mode, 0);
tvendov 0:6435b67ad23c 67 spi_frequency(&_spi, _hz);
tvendov 0:6435b67ad23c 68 _owner = this;
tvendov 0:6435b67ad23c 69 }
tvendov 0:6435b67ad23c 70 unlock();
tvendov 0:6435b67ad23c 71 }
tvendov 0:6435b67ad23c 72
tvendov 0:6435b67ad23c 73 int SPI::write(int value) {
tvendov 0:6435b67ad23c 74 lock();
tvendov 0:6435b67ad23c 75 aquire();
tvendov 0:6435b67ad23c 76 int ret = spi_master_write(&_spi, value);
tvendov 0:6435b67ad23c 77 unlock();
tvendov 0:6435b67ad23c 78 return ret;
tvendov 0:6435b67ad23c 79 }
tvendov 0:6435b67ad23c 80
tvendov 0:6435b67ad23c 81 void SPI::lock() {
tvendov 0:6435b67ad23c 82 _mutex->lock();
tvendov 0:6435b67ad23c 83 }
tvendov 0:6435b67ad23c 84
tvendov 0:6435b67ad23c 85 void SPI::unlock() {
tvendov 0:6435b67ad23c 86 _mutex->unlock();
tvendov 0:6435b67ad23c 87 }
tvendov 0:6435b67ad23c 88
tvendov 0:6435b67ad23c 89 #if DEVICE_SPI_ASYNCH
tvendov 0:6435b67ad23c 90
tvendov 0:6435b67ad23c 91 int SPI::transfer(const void *tx_buffer, int tx_length, void *rx_buffer, int rx_length, unsigned char bit_width, const event_callback_t& callback, int event)
tvendov 0:6435b67ad23c 92 {
tvendov 0:6435b67ad23c 93 if (spi_active(&_spi)) {
tvendov 0:6435b67ad23c 94 return queue_transfer(tx_buffer, tx_length, rx_buffer, rx_length, bit_width, callback, event);
tvendov 0:6435b67ad23c 95 }
tvendov 0:6435b67ad23c 96 start_transfer(tx_buffer, tx_length, rx_buffer, rx_length, bit_width, callback, event);
tvendov 0:6435b67ad23c 97 return 0;
tvendov 0:6435b67ad23c 98 }
tvendov 0:6435b67ad23c 99
tvendov 0:6435b67ad23c 100 void SPI::abort_transfer()
tvendov 0:6435b67ad23c 101 {
tvendov 0:6435b67ad23c 102 spi_abort_asynch(&_spi);
tvendov 0:6435b67ad23c 103 #if TRANSACTION_QUEUE_SIZE_SPI
tvendov 0:6435b67ad23c 104 dequeue_transaction();
tvendov 0:6435b67ad23c 105 #endif
tvendov 0:6435b67ad23c 106 }
tvendov 0:6435b67ad23c 107
tvendov 0:6435b67ad23c 108
tvendov 0:6435b67ad23c 109 void SPI::clear_transfer_buffer()
tvendov 0:6435b67ad23c 110 {
tvendov 0:6435b67ad23c 111 #if TRANSACTION_QUEUE_SIZE_SPI
tvendov 0:6435b67ad23c 112 _transaction_buffer.reset();
tvendov 0:6435b67ad23c 113 #endif
tvendov 0:6435b67ad23c 114 }
tvendov 0:6435b67ad23c 115
tvendov 0:6435b67ad23c 116 void SPI::abort_all_transfers()
tvendov 0:6435b67ad23c 117 {
tvendov 0:6435b67ad23c 118 clear_transfer_buffer();
tvendov 0:6435b67ad23c 119 abort_transfer();
tvendov 0:6435b67ad23c 120 }
tvendov 0:6435b67ad23c 121
tvendov 0:6435b67ad23c 122 int SPI::set_dma_usage(DMAUsage usage)
tvendov 0:6435b67ad23c 123 {
tvendov 0:6435b67ad23c 124 if (spi_active(&_spi)) {
tvendov 0:6435b67ad23c 125 return -1;
tvendov 0:6435b67ad23c 126 }
tvendov 0:6435b67ad23c 127 _usage = usage;
tvendov 0:6435b67ad23c 128 return 0;
tvendov 0:6435b67ad23c 129 }
tvendov 0:6435b67ad23c 130
tvendov 0:6435b67ad23c 131 int SPI::queue_transfer(const void *tx_buffer, int tx_length, void *rx_buffer, int rx_length, unsigned char bit_width, const event_callback_t& callback, int event)
tvendov 0:6435b67ad23c 132 {
tvendov 0:6435b67ad23c 133 #if TRANSACTION_QUEUE_SIZE_SPI
tvendov 0:6435b67ad23c 134 transaction_t t;
tvendov 0:6435b67ad23c 135
tvendov 0:6435b67ad23c 136 t.tx_buffer = const_cast<void *>(tx_buffer);
tvendov 0:6435b67ad23c 137 t.tx_length = tx_length;
tvendov 0:6435b67ad23c 138 t.rx_buffer = rx_buffer;
tvendov 0:6435b67ad23c 139 t.rx_length = rx_length;
tvendov 0:6435b67ad23c 140 t.event = event;
tvendov 0:6435b67ad23c 141 t.callback = callback;
tvendov 0:6435b67ad23c 142 t.width = bit_width;
tvendov 0:6435b67ad23c 143 Transaction<SPI> transaction(this, t);
tvendov 0:6435b67ad23c 144 if (_transaction_buffer.full()) {
tvendov 0:6435b67ad23c 145 return -1; // the buffer is full
tvendov 0:6435b67ad23c 146 } else {
tvendov 0:6435b67ad23c 147 core_util_critical_section_enter();
tvendov 0:6435b67ad23c 148 _transaction_buffer.push(transaction);
tvendov 0:6435b67ad23c 149 if (!spi_active(&_spi)) {
tvendov 0:6435b67ad23c 150 dequeue_transaction();
tvendov 0:6435b67ad23c 151 }
tvendov 0:6435b67ad23c 152 core_util_critical_section_exit();
tvendov 0:6435b67ad23c 153 return 0;
tvendov 0:6435b67ad23c 154 }
tvendov 0:6435b67ad23c 155 #else
tvendov 0:6435b67ad23c 156 return -1;
tvendov 0:6435b67ad23c 157 #endif
tvendov 0:6435b67ad23c 158 }
tvendov 0:6435b67ad23c 159
tvendov 0:6435b67ad23c 160 void SPI::start_transfer(const void *tx_buffer, int tx_length, void *rx_buffer, int rx_length, unsigned char bit_width, const event_callback_t& callback, int event)
tvendov 0:6435b67ad23c 161 {
tvendov 0:6435b67ad23c 162 aquire();
tvendov 0:6435b67ad23c 163 _callback = callback;
tvendov 0:6435b67ad23c 164 _irq.callback(&SPI::irq_handler_asynch);
tvendov 0:6435b67ad23c 165 spi_master_transfer(&_spi, tx_buffer, tx_length, rx_buffer, rx_length, bit_width, _irq.entry(), event , _usage);
tvendov 0:6435b67ad23c 166 }
tvendov 0:6435b67ad23c 167
tvendov 0:6435b67ad23c 168 #if TRANSACTION_QUEUE_SIZE_SPI
tvendov 0:6435b67ad23c 169
tvendov 0:6435b67ad23c 170 void SPI::start_transaction(transaction_t *data)
tvendov 0:6435b67ad23c 171 {
tvendov 0:6435b67ad23c 172 start_transfer(data->tx_buffer, data->tx_length, data->rx_buffer, data->rx_length, data->width, data->callback, data->event);
tvendov 0:6435b67ad23c 173 }
tvendov 0:6435b67ad23c 174
tvendov 0:6435b67ad23c 175 void SPI::dequeue_transaction()
tvendov 0:6435b67ad23c 176 {
tvendov 0:6435b67ad23c 177 Transaction<SPI> t;
tvendov 0:6435b67ad23c 178 if (_transaction_buffer.pop(t)) {
tvendov 0:6435b67ad23c 179 SPI* obj = t.get_object();
tvendov 0:6435b67ad23c 180 transaction_t* data = t.get_transaction();
tvendov 0:6435b67ad23c 181 obj->start_transaction(data);
tvendov 0:6435b67ad23c 182 }
tvendov 0:6435b67ad23c 183 }
tvendov 0:6435b67ad23c 184
tvendov 0:6435b67ad23c 185 #endif
tvendov 0:6435b67ad23c 186
tvendov 0:6435b67ad23c 187 void SPI::irq_handler_asynch(void)
tvendov 0:6435b67ad23c 188 {
tvendov 0:6435b67ad23c 189 int event = spi_irq_handler_asynch(&_spi);
tvendov 0:6435b67ad23c 190 if (_callback && (event & SPI_EVENT_ALL)) {
tvendov 0:6435b67ad23c 191 _callback.call(event & SPI_EVENT_ALL);
tvendov 0:6435b67ad23c 192 }
tvendov 0:6435b67ad23c 193 #if TRANSACTION_QUEUE_SIZE_SPI
tvendov 0:6435b67ad23c 194 if (event & (SPI_EVENT_ALL | SPI_EVENT_INTERNAL_TRANSFER_COMPLETE)) {
tvendov 0:6435b67ad23c 195 // SPI peripheral is free (event happend), dequeue transaction
tvendov 0:6435b67ad23c 196 dequeue_transaction();
tvendov 0:6435b67ad23c 197 }
tvendov 0:6435b67ad23c 198 #endif
tvendov 0:6435b67ad23c 199 }
tvendov 0:6435b67ad23c 200
tvendov 0:6435b67ad23c 201 #endif
tvendov 0:6435b67ad23c 202
tvendov 0:6435b67ad23c 203 } // namespace mbed
tvendov 0:6435b67ad23c 204
tvendov 0:6435b67ad23c 205 #endif
tvendov 0:6435b67ad23c 206