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212 lines
6.5 KiB
212 lines
6.5 KiB
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#include "../../../inc/MarlinConfig.h"
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#if HAS_SPI_TFT
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#include "tft_spi.h"
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#include "pinconfig.h"
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SPI_HandleTypeDef TFT_SPI::SPIx;
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DMA_HandleTypeDef TFT_SPI::DMAtx;
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void TFT_SPI::Init() {
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SPI_TypeDef *spiInstance;
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#if PIN_EXISTS(TFT_RESET)
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OUT_WRITE(TFT_RESET_PIN, HIGH);
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HAL_Delay(100);
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#endif
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#if PIN_EXISTS(TFT_BACKLIGHT)
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OUT_WRITE(TFT_BACKLIGHT_PIN, HIGH);
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#endif
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OUT_WRITE(TFT_A0_PIN, HIGH);
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OUT_WRITE(TFT_CS_PIN, HIGH);
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if ((spiInstance = (SPI_TypeDef *)pinmap_peripheral(digitalPinToPinName(TFT_SCK_PIN), PinMap_SPI_SCLK)) == NP) return;
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if (spiInstance != (SPI_TypeDef *)pinmap_peripheral(digitalPinToPinName(TFT_MOSI_PIN), PinMap_SPI_MOSI)) return;
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#if PIN_EXISTS(TFT_MISO) && (TFT_MISO_PIN != TFT_MOSI_PIN)
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if (spiInstance != (SPI_TypeDef *)pinmap_peripheral(digitalPinToPinName(TFT_MISO_PIN), PinMap_SPI_MISO)) return;
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#endif
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SPIx.Instance = spiInstance;
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SPIx.State = HAL_SPI_STATE_RESET;
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SPIx.Init.NSS = SPI_NSS_SOFT;
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SPIx.Init.Mode = SPI_MODE_MASTER;
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SPIx.Init.Direction =
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#if TFT_MISO_PIN == TFT_MOSI_PIN
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SPI_DIRECTION_1LINE;
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#else
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SPI_DIRECTION_2LINES;
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#endif
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SPIx.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
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SPIx.Init.CLKPhase = SPI_PHASE_1EDGE;
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SPIx.Init.CLKPolarity = SPI_POLARITY_LOW;
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SPIx.Init.DataSize = SPI_DATASIZE_8BIT;
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SPIx.Init.FirstBit = SPI_FIRSTBIT_MSB;
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SPIx.Init.TIMode = SPI_TIMODE_DISABLE;
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SPIx.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
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SPIx.Init.CRCPolynomial = 10;
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pinmap_pinout(digitalPinToPinName(TFT_SCK_PIN), PinMap_SPI_SCLK);
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pinmap_pinout(digitalPinToPinName(TFT_MOSI_PIN), PinMap_SPI_MOSI);
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#if PIN_EXISTS(TFT_MISO) && (TFT_MISO_PIN != TFT_MOSI_PIN)
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pinmap_pinout(digitalPinToPinName(TFT_MISO_PIN), PinMap_SPI_MISO);
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#endif
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pin_PullConfig(get_GPIO_Port(STM_PORT(digitalPinToPinName(TFT_SCK_PIN))), STM_LL_GPIO_PIN(digitalPinToPinName(TFT_SCK_PIN)), GPIO_PULLDOWN);
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#ifdef SPI1_BASE
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if (SPIx.Instance == SPI1) {
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__HAL_RCC_SPI1_CLK_ENABLE();
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__HAL_RCC_DMA1_CLK_ENABLE();
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SPIx.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4;
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DMAtx.Instance = DMA1_Channel3;
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}
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#endif
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#ifdef SPI2_BASE
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if (SPIx.Instance == SPI2) {
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__HAL_RCC_SPI2_CLK_ENABLE();
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__HAL_RCC_DMA1_CLK_ENABLE();
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DMAtx.Instance = DMA1_Channel5;
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}
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#endif
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#ifdef SPI3_BASE
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if (SPIx.Instance == SPI3) {
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__HAL_RCC_SPI3_CLK_ENABLE();
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__HAL_RCC_DMA2_CLK_ENABLE();
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DMAtx.Instance = DMA2_Channel2;
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}
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#endif
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HAL_SPI_Init(&SPIx);
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DMAtx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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DMAtx.Init.PeriphInc = DMA_PINC_DISABLE;
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DMAtx.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
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DMAtx.Init.MemDataAlignment = DMA_MDATAALIGN_HALFWORD;
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DMAtx.Init.Mode = DMA_NORMAL;
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DMAtx.Init.Priority = DMA_PRIORITY_LOW;
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}
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void TFT_SPI::DataTransferBegin(uint16_t DataSize) {
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SPIx.Init.DataSize = DataSize == DATASIZE_8BIT ? SPI_DATASIZE_8BIT : SPI_DATASIZE_16BIT;
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HAL_SPI_Init(&SPIx);
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WRITE(TFT_CS_PIN, LOW);
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}
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uint32_t TFT_SPI::GetID() {
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uint32_t id;
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id = ReadID(LCD_READ_ID);
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if ((id & 0xFFFF) == 0 || (id & 0xFFFF) == 0xFFFF)
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id = ReadID(LCD_READ_ID4);
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return id;
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}
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uint32_t TFT_SPI::ReadID(uint16_t Reg) {
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#if !PIN_EXISTS(TFT_MISO)
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return 0;
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#else
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uint32_t BaudRatePrescaler = SPIx.Init.BaudRatePrescaler;
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uint32_t i, Data = 0;
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SPIx.Init.BaudRatePrescaler = SPIx.Instance == SPI1 ? SPI_BAUDRATEPRESCALER_8 : SPI_BAUDRATEPRESCALER_4;
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DataTransferBegin(DATASIZE_8BIT);
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WriteReg(Reg);
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if (SPIx.Init.Direction == SPI_DIRECTION_1LINE) SPI_1LINE_RX(&SPIx);
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__HAL_SPI_ENABLE(&SPIx);
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for (i = 0; i < 4; i++) {
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#if TFT_MISO_PIN != TFT_MOSI_PIN
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//if (hspi->Init.Direction == SPI_DIRECTION_2LINES) {
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while ((SPIx.Instance->SR & SPI_FLAG_TXE) != SPI_FLAG_TXE) {}
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SPIx.Instance->DR = 0;
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//}
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#endif
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while ((SPIx.Instance->SR & SPI_FLAG_RXNE) != SPI_FLAG_RXNE) {}
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Data = (Data << 8) | SPIx.Instance->DR;
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}
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__HAL_SPI_DISABLE(&SPIx);
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DataTransferEnd();
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SPIx.Init.BaudRatePrescaler = BaudRatePrescaler;
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return Data >> 7;
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#endif
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}
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bool TFT_SPI::isBusy() {
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if (DMAtx.Instance->CCR & DMA_CCR_EN)
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if (__HAL_DMA_GET_FLAG(&DMAtx, __HAL_DMA_GET_TC_FLAG_INDEX(&DMAtx)) != 0 || __HAL_DMA_GET_FLAG(&DMAtx, __HAL_DMA_GET_TE_FLAG_INDEX(&DMAtx)) != 0)
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Abort();
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return DMAtx.Instance->CCR & DMA_CCR_EN;
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}
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void TFT_SPI::Abort() {
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__HAL_DMA_DISABLE(&DMAtx);
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DataTransferEnd();
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}
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void TFT_SPI::Transmit(uint16_t Data) {
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#if TFT_MISO_PIN == TFT_MOSI_PIN
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SPI_1LINE_TX(&SPIx);
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#endif
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__HAL_SPI_ENABLE(&SPIx);
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SPIx.Instance->DR = Data;
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while ((SPIx.Instance->SR & SPI_FLAG_TXE) != SPI_FLAG_TXE) {}
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while ((SPIx.Instance->SR & SPI_FLAG_BSY) == SPI_FLAG_BSY) {}
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#if TFT_MISO_PIN != TFT_MOSI_PIN
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__HAL_SPI_CLEAR_OVRFLAG(&SPIx); /* Clear overrun flag in 2 Lines communication mode because received is not read */
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#endif
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}
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void TFT_SPI::TransmitDMA(uint32_t MemoryIncrease, uint16_t *Data, uint16_t Count) {
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DMAtx.Init.MemInc = MemoryIncrease;
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HAL_DMA_Init(&DMAtx);
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DataTransferBegin();
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#if TFT_MISO_PIN == TFT_MOSI_PIN
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SPI_1LINE_TX(&SPIx);
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#endif
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DMAtx.DmaBaseAddress->IFCR = (DMA_ISR_GIF1 << DMAtx.ChannelIndex);
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DMAtx.Instance->CNDTR = Count;
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DMAtx.Instance->CPAR = (uint32_t)&(SPIx.Instance->DR);
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DMAtx.Instance->CMAR = (uint32_t)Data;
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__HAL_DMA_ENABLE(&DMAtx);
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__HAL_SPI_ENABLE(&SPIx);
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SET_BIT(SPIx.Instance->CR2, SPI_CR2_TXDMAEN); /* Enable Tx DMA Request */
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}
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#endif // HAS_SPI_TFT
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