Hal spi transmit receive. SPI2 is configured with DMA Circular mode /* USER CODE BEGIN 2 */ HAL_GPIO_WritePin( Jan 13, 2021 · HAL_SPI_Transmit函数忽略了接收的数据，HAL_SPI_Receive忽略了发送的数据。 使用方法： 对于主机来说，一次完整的SPI通讯需要1. This f The equator receives equal day and night throughout the year because it does not tilt in relation to the sun’s location. The master would then call HAL_SPI_Receive() to furnish clocks for the slave to do the transmitting of its response. May 29, 2024 · Hi. The communication format depends on the clock phase, clock polarity, and data frame format. I am fairly new to development on STM32 boards. I am using S Feb 26, 2022 · sorry in advance, i am new at this kind of projects. With the increasing use of technology and online platforms, it has become easier than ever for someone to spy on you. Since streams have hardware priority according to inverse of their number (stream0 is Mar 7, 2018 · I have tried HAL_SPI_TransmitReceive_DMA and HAL_SPI_Receive_DMA on a STM32F7 to be sure that there is no technological problem on Cortex-M7. 16 bits) as long as the number of bytes to send/receive is > 1. Blocking mode: The communication is performed in polling mode. This problem is driving me nuts, so hopefully someone might lead me to a solution. Dec 1, 2023 · During SPI Communication, receive and transmit operations are performed simultaneously. Dec 14, 2019 · 今回、読み込みコマンドをHAL_SPI_Transmit関数でデバイスに送信してから値をHAL_SPI_Receive関数で読み込みます。 その際にHAL_SPI_Receive関数でタイムアウトエラーが頻発し、安定して読み込みできない現象が発生しました。 Jul 4, 2023 · I am writing basic SPI loopback example with STM32F103C8T6 with CubeMX( spi1 is master and spi2 is slave). To be able to communicate together, the master and slave devices must follow the same communication format. This mea. HAL_StatusTypeDef HAL_SPI_Transmit_DMA (SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size) Transmit an amount of data in non-blocking mode with DMA. Put the following code into the relevant parts of your main. 4 GHz signal from compatible Bluetooth devices. Whenever I press the user push button on the STM32F4 Master, the Master will send a command byte (0xE1) through SPI and the STM32F3 Slave is expected to respond with 4 particular bytes. Nov 24, 2021 · > hspi1. S. Hence, the configuration isn't compatible with what you're trying to do. In this article, we will introduce you to a fantastic opportunity to In today’s fast-paced digital world, communication has become easier and more convenient than ever before. May 25, 2018 · Background I am trying to make a SPI connection between two STM32F103C8T6's. But HAL_SPI_Transmit_DMA does not send anything and gets stuck in while loop where it checks HAL_SPI_STATE_READY flag. There c In today’s digital age, becoming an influencer has never been more accessible. Nov 23, 2023 · HAL_StatusTypeDef HAL_SPI_Receive_IT (SPI_HandleTypeDef * hspi, uint8_t * pData, uint16_t Size); void HAL_SPI_ErrorCallback (SPI_HandleTypeDef * hspi); void HAL_SPI_RxCpltCallback (SPI_HandleTypeDef * hspi); 参数含义跟HAL_SPI_Receive一样，少了个超时参数，因为中断方式并不轮询rx fifo是否非空，而是收到rx fifo非 Aug 12, 2020 · I am trying to stablish a simple communication between two STM32 boards using SPI (NUCLEO-F401RE board as full duplex master and NUCLE0-L152RE board as full duplex slave). I tried to implement a connection to an ADC (LTC1609) via SPI. Converting this to odd parity adds a zero, which yields 0 01000000. The Earth is tilted at approximately 23. However, there are times when we find ourselves unable to receive ema A Bluetooth receiver is a piece of machinery designed specifically for picking up a 2. Mar 9, 2016 · Posted on March 09, 2016 at 14:21 Hi,I am examining HAL_SPI_Receive(). Jun 10, 2021 · Since HAL_SPI_Receive is already using HAL_SPI_TransmitReceive (github stm32f4 spi driver) to send dummy data to generate clock, you can use that fact and ditch the HAL_SPI_Transmit, and use the receive function like this: rxData[0] = ADDR_WHO_AM_I | 0x80; HAL_SPI_Receive(&hspi2, rxData, 1, HAL_MAX_DELAY); See full list on deepbluembedded. DataSize = SPI Mar 9, 2021 · So first I send 3 bytes using HAL, and then the same 3 bytes using the registers and same SPI. It also takes in the same parameter which is the pointer to the SPI_HandleTypeDef structure. However, like any technology, it is not immune to issues. When I use this algorithm, I am getting always 0xFF values in my ADC buffer. An interesting observation from STM32Cube created HAL files for stm32f103: if SPI is configured as Master, HAL_SPI_Receive itself uses HAL_SPI_TransmitReceive. Aug 28, 2017 · Posted on August 28, 2017 at 18:08 Hello everyone, I am having a bit of trouble with the SPI communication between two STM32L053R8 boards. These devices eliminate the need for bulky cab Telephones began as large, clunky devices capable of transmitting and receiving voice messages over short distances, then evolved to lighter, transportable cellular devices capable Global Positioning System or GPS signals are blocked by using GPS jamming gadgets, metal shields, GPS spoofing gadgets and mobile phone jammers. Sometimes, you will come across devices that only support half-duplex mode in order to save pins. However, it can be frustrating when you’re not receiving important messages in your inbox. Jul 5, 2023 · Hello STM32 community, I'm currently working with the Discovery board and trying to implement SPI communication using the HAL library. This includes upgrading your Shaw receiver to take advantage of the many benefits i Weekly ads are distributed by the U. If anyone can help, it would be much appreciated and I'd owe you a beer at least. While there are countless resou Email communication plays a crucial role in both personal and professional lives. HAL_SPI_Transmit_DMA works OK, but HAL_SPI_Receive_DMA returns HAL_BUSY, so even the first reading process seams OK, it actually doesn't and I cannot read the bytes that I wrote just before the reading operation. Provider that spi_dma_tx is your MOSI message. c 5 years, 9 months ago. The other device is an SPI Slave that will receive the incoming SPI data and send it out over the UART port to a PC. In HAL_SPI_TxCpltCallback function, trigger HAL_SPI_Receive_DMA() In HAL_SPI_RxCpltCallback function, buffer received ADC data and make chip select pin high to terminate communication. Direction = SPI_DIRECTION_2LINES_RXONLY; > Status = HAL_SPI_Transmit(&hspi1, Data, 1,1); The code you posted doesn't use HAL_SPI_Receive. Modems convert digital signals to analog signals, transmit them and then convert the The Microsoft Notebook Receiver is a small device that plugs into the USB port of a notebook or laptop and receives signals from a wireless mouse. Before d RF transmitters and receivers are essential components in wireless communication systems. 5 degrees. With more than 600 microcontrollers, STM32 is probably the most complete ARM Cortex-M platform on the market. I use a logic Oct 18, 2018 · I have some trouble to handle ADS7953 with HAL_SPI_TransmitReceive_DMA api, if using HAL_SPI_TransmitReceive api, it takes long time and impact other operations, so I hope to reduce the communication time with HAL_SPI_TransmitReceive_DMA in the communication of SPI, please help to let me know the method if possible, with detailed example, Dec 22, 2017 · The SPI HAL driver can be used as follows: (#) Declare a SPI_HandleTypeDef handle structure, for example: SPI_HandleTypeDef hspi; (#)Initialize the SPI low level resources by implementing the HAL_SPI_MspInit() API: (##) Enable the SPIx interface clock (##) SPI pins configuration (+++) Enable the clock for the SPI GPIOs (+++) Configure these SPI Aug 10, 2023 · I am trying to implement an EEPROM driver which uses DMA. First time I have posted here. Measurements According to my logic analyzer I get a signal that looks ok (sending 10 bytes with values 0x55): Result Jun 22, 2021 · When the master calls HAL_SPI_Transmit(), the nature of SPI means that while it clocks out the first byte over the MOSI line, it is simultaneously clocking in a byte over the MISO line. SPI and DMA configuration was generated using CubeMX. Check your memory map if spi_dma_tx is allocated just after spi_dma_rx_. These documents play a vital role in tracking and verifying the quali In today’s digital age, the boundaries between different devices are becoming increasingly blurred. The slave must also return 15 Bytes. Whether it’s for two-factor authentication, verifying your identity, or receiving important notif Are you a Shaw subscriber looking to enhance your television viewing experience? Upgrading your Shaw receiver can be a great way to unlock new features and improve the overall perf To reset a Samsung washer after receiving an error code, turn the Power switch OFF and then back ON. TLDR: Replace. HAL_SPI_Transmit() HAL_SPI_Receive() HAL_SPI Jan 28, 2022 · ポーリングモードで関数 HAL_SPI_Transmit および HAL_SPI_Receive を使う場合もこの方法で実現できます。 ただしこのように1回の通信中（トランザクション）でNSSが切り替わるのはSPIデバイスとしては特殊ケースで、当然ながらマスタ側もこれを承知で実装する必要 Aug 2, 2017 · void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi) { volatile uint8_t y = 5; } Before my question: Using the "normal" SPI_Transmit&Receive functions, I transmit & receive correctly. The defining characteristic of shingles is that In the world of wireless communication, radio antennas play a crucial role. Nov 23, 2016 · void __initialize_hardware(void) { // Initialise the HAL Library; it must be the first function // to be executed before the call of any HAL function. One popular method of communication is through SMS or Short Message Service. DataSize = SPI_DATASIZE_16BIT). AIS enables vessels to transmit and rece During the American Civil War, federal scouts served as Union spies who traveled ahead of the other troops to gather information about Confederate troops. Let’s use our new library. e. One of th In today’s digital age, receiving SMS messages has become an integral part of our daily lives. Specifically, I am attempting to write data from the MOSI line and simultaneously read data from the MISO line using the HAL_SPI_TransmitReceive() function on SPI1. : Oct 14, 2018 · I don't know about the L08 HAL lib, but on the L4, HAL_SPI_TransmitReceive() uses 16-bit transfers even if you set it for 8-bit mode. Tha master works properly and I confirmed it with a l Transmit and Receive an amount of data in non-blocking mode with Interrupt. It ensures that the materials meet the required s Here’s an example of odd parity. I am attempting to implement SPI communciation between the two boards. HAL_SPI_Transmit() HAL_SPI_Receive() HAL_SPI Jan 10, 2023 · When using the HAL_SPI_Transmit () or HAL_SPI_Receive () functions on the STM32, the MOSI and MISO lines are both active. I receive an EXTI interrupt when the sensor indicates that data is ready, and in response to this I call HAL_SPI_TransmitReceive_DMA to retrieve 15 bytes of data from the sensor, as follows: HAL_S Dec 16, 2001 · Mastering STM32. My problem is that I dont understand how I should use this functions. The data can be seen on the line to properly get clocked out over SPI. And using registers - 1. At some point it calls return HAL_SPI_TransmitReceive(hspi, pData, pData, Size, Timeout);where pDatais the pointer to the rx buffer and Sizeis its size passed to HAL_SPI_Receive(). ) for 16 bit data transmission. 拉高片选脚CS Dec 5, 2023 · Yes, i understand that. The first one is a Master SPI that will send out a buffer of data “Sine Table”. Bluetooth receivers can be built into devices, Are you a proud owner of a Denon receiver and looking to set it up for the ultimate home audio experience? Look no further. Init. It is easier to block the signal of When light passes through glass, the photons in the light interact with the electrons in the glass. But for 3-wire SPI, which means only one wire for DIN/DOUT, then you should use HAL_SPI_Transmit and HAL_SPI_Receive seperately, because the data transmitting and receiving are at different time frame. Many people don’t realize that they can get STDs Do you have what it takes to be a modern day spy? Can you handle keeping your job top secret and going on life-threatening missions? We’ve gathered some of the confessions of forme Shingles is an extremely painful, localized skin rash caused by the varicella zoster virus — the same virus that causes chickenpox. The term can refer to a v If you’re facing issues with not receiving emails, it can be frustrating and cause disruptions in your personal or professional life. Apr 12, 2024 · Based on the STM32Cube HAL functions, SPI data transfer can be performed in three modes: blocking mode, interrupt mode, or DMA mode. e. HAL_StatusTypeDef HAL_SPI_Transmit(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout) To use non-blocking transfer, you use API HAL_SPI_Transmit_IT() Nov 28, 2023 · Additionally, you have wrong cast in HAL_SPI_TransmitReceive call. HAL_SPI_Transmit_DMA returns Feb 26, 2019 · I have a HAL_SPI_TransmitReceive_DMA() transaction that I am performing. This cutting-edge device is desig In the material receiving process of pipes, it is crucial to ensure that all necessary documents are in place. HAL library provides the following functions to transmit and receive in polling mode: HAL_SPI_Receive(SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size, uint32_t Timeout) Sep 30, 2021 · If I understood your query correctly, the data is not being transmitted and sometimes the LED is not triggering, right? Can you print the data at the time you are receiving the interrupt on the slave side? Oct 7, 2024 · You can use HAL_SPI_GetState() I2C In Master Receive Mode, STM32F446 SPI SLAVE IN DMA RECEIVES DATA BUT DOES NOT TRANSMIT in STM32 MCUs Products 2024-10-18; Top. HAL_SPI_TransmitReceive transmits and receive data at the same time, if you transmit two bytes, both buffers must be of size 2. Postal Service by providing discounted marketing services to advertisers. For this, I'm using the HAL function HAL_SPI_Receive_IT(), which as its name suggests doesn't use DMA, but is non-blocking and calls HAL_SPI_RxCpltCallback() when it's done and my buffer holds the number of bytes Mar 22, 2018 · Send read command to External ADC with HAL_SPI_Transmit_DMA() function. The s HAL_SPI_Receive_DMA(&hspi1, RX_Data, DATA_SIZE); The HAL_SPI_RxCpItCallback() function is the Rx transfer completed callback function. Sep 30, 2021 · If I understood your query correctly, the data is not being transmitted and sometimes the LED is not triggering, right? Can you print the data at the time you are receiving the interrupt on the slave side? Oct 7, 2024 · You can use HAL_SPI_GetState() I2C In Master Receive Mode, STM32F446 SPI SLAVE IN DMA RECEIVES DATA BUT DOES NOT TRANSMIT in STM32 MCUs Products 2024-10-18; Top. The stm32 is l071, 32 Mhz, SPI is 16Mhz. Apr 23, 2024 · hey every one so i'm trying to understand HAL_SPI_TransmitReceive behavior. The problem is that in the receive interrupt, we kick off the next transaction (a DMA SPI write). I am under extreme time pressure with this project and need to solve this very quickly. Function name HAL_StatusTypeDef HAL_SPI_Transmit (SPI_HandleTypeDef * hspi, uint8_t * pData, uint16_t Size, uint32_t Timeout) Function description Transmit an amount of data in blocking mode. The user may disconnect the power to the unit for a couple seconds, and then re Are you interested in learning Python but don’t want to spend a fortune on expensive courses? Look no further. hspi1. Inside this callback, the HAL_SPI_Receive_DMA() function is called to receive the data. It kind of works the first time, but Jun 13, 2018 · Both transmit (TX) and receive (RX) channels are available as separate streams. They are responsible for transmitting and receiving radio signals, allowing us to enjoy various forms of The maritime industry has long relied on the Automatic Identification System (AIS) to enhance safety, efficiency, and communication at sea. HAL_StatusTypeDef HAL_SPI_Receive_DMA (SPI_HandleTypeDef *hspi, uint8_t *pData, uint16_t Size) Jul 3, 2020 · It's called buffer overflow. 卒論発表を偵察しに行ったら、他学部の学生がずっと質問している 修羅場 場面に遭遇した中の人です。 前回 はポーリングでMPU9250とSPIでお話ししていました。実はHALでは割り込みとDMAによるSPI通信が実装されており、今回はDMAを使ってみたいと Oct 8, 2020 · Hi all-- I am using HAL_SPI_TransmitReceive_DMA to retrieve data periodically from an inertial sensor. Rather, it uses HAL_SPI_Transmit. I have not been able to a Aug 28, 2017 · I have a difficulty with ST32F030 and Slave SPI I'm trying to have it respond to an spi command:- Master sends 0x05, slave responds with an array of 7 bytes. 192ms . His work as a scientist earned him a teaching position at the University of Padua, one of the most p The process of receiving and inspecting materials, such as pipes, is a critical step in any construction or manufacturing project. g. 拉低片选脚CS 2. One area where this can be particul In today’s fast-paced and ever-changing professional landscape, receiving the best career advice can make all the difference in shaping your future. The first step in receiving local channels on In today’s fast-paced business world, effective and efficient communication is key to success. I have configured the SPI using STM32Cube as 16 bit data size (with hspi2. The MOSI line is used to send data from the STM32 to the slave device, while the MISO line is used to receive data from the slave device. If fact the behaviour is strange: like 80% of the time the reception will be ok (0x12, 0x34, 0x56, 0x78), but then during 2 receptions some data will be flipped (egz. Since you arrays are of uint8_t type you do not need cast at all. 0 of the device comes w In today’s digital age, communication has become faster and more convenient than ever before. It sets the FIFIO interrupt to 1/2 full (i. Using HAL_SPI_Transmit function SPI works great. How come? Isn't doing things with registers supposed to be quicker? P. Whether it’s for personal or professional use, having the ability to receive text mes In today’s fast-paced business environment, organizations are constantly looking for ways to streamline their operations and improve efficiency. However, to truly maximize the performanc Family caregivers are often faced with the challenge of providing care for their loved ones while also managing their own financial responsibilities. However, photons in visible light don’t have enough energy in them to change the Sexually transmitted diseases (STDs) or sexually transmitted infections (STIs) are infections that can spread with sexual contact. One common problem that many Gma Modems provide point-to-point communication between two digital devices using analog circuits. com Dec 26, 2018 · HAL_SPI_TransmitReceive(&hspi1,txData,rxData,12,TIMEOUTVALUE); (12 = 4 + 7 + one byte which is the first received byte, which is a dummy one because the Slave starts transmitting after the 1st byte is sent by the Master). You have the SPI set up in RX only mode. In spi 1 , I want to continuously read Ad7606 data via spi in dma mode in one thread . Hi Vasileios , For 4-wire SPI, which means basic SPI, HAL_SPI_TransmitReceive() is the one you should use. Internet technology is important in many different indust Are you in the market for a high-precision Global Navigation Satellite System (GNSS) receiver? Look no further than the Trimble R8s GNSS receiver. One of the perks that comes with this status is the opportunity to receive free products for reviewin In today’s digital age, communication plays a vital role in the success of any business. Nov 13, 2023 · I am using CubeMx and CubeIde with two nucleo-F042K6 boards. However, there are several common reasons why Have you ever experienced the frustration of not receiving important emails in your Gmail inbox? It can be a major inconvenience, especially if you rely on your email for work or p Are you experiencing the frustrating issue of not receiving emails? Whether you’re using a personal or business email account, this problem can disrupt your communication and cause In today’s fast-paced business world, organizations are constantly looking for ways to improve efficiency and streamline their operations. One innovative solution that can streamline your business communication is a virtual In today’s fast-paced digital world, staying up to date with the latest technology is essential. May 24, 2017 · This tutorial shows how to use the SPI interface of the STM32 devices using the STM32CubeMX HAL API. 调用HAL_SPI_TransmitReceive (函数调用结束即SPI通讯完成)3. They play a crucial role in transmitting and receiving radio frequency signals, allowing f Wireless HDMI transmitters and receivers have revolutionized the way we connect and transmit high-definition audio and video signals. All DMA functions are working perfectly with F7. i created a program which send 1 byte every 12s master while loop Request = 0x5a; HAL_GPIO_WritePin(GPIOB,GPIO_PIN_1, Dec 13, 2016 · So I do not know if there anything else wrong, but you certainly should wait after the SPI transmit as follows: HAL_SPI_Transmit(&hspi1, &xy, 1, 1); while(HAL_SPI_GetState(&hspi1) != HAL_SPI_STATE_READY); You should wait for the end of the transmission, before moving on. Version 2. So far, I can implement polling and interrupt version. Aug 24, 2017 · I am trying to use HAL_SPI_Transmit(. Jul 17, 2022 · To use blocking transfer, you use API HAL_SPI_Transmit() which accepts a spi handler, pointer to data buffer, data length and a timeout parameter. So, pDatais used as tx buffer and rx buffer in Nov 27, 2021 · Using the SPI in Polling Mode is the easiest way, but it is the least efficient way as the CPU will remain in a waiting state for a long time. It performs a few essential functions, su If you’re a Roku user, you’ve probably already taken advantage of the vast selection of streaming services available on the platform. Using the HAL it is not possible to reach all supported SPI frequency with the different SPI Modes, In today’s digital age, privacy is a growing concern. In this step-by-step guide, we will walk you through eve Gmail is one of the most popular email services used by individuals and businesses alike. One such example is the ability to make and receive calls on your laptop. Jan 16, 2021 · HAL_SPI_TransmitReceive() is the function you would need to send and receive data simultaneously. Jun 14, 2019 · Im using stm32f429zi mcu and would like to implement SPI DMA with MOSI only, I dont need MISO. We will configure the SPI in several different modes, show how they affect the generated signal and setup the double-buffered mode to demonstrate continuous uninterrupted mode. But the thing is that at the beginning the devices are synchronized. Aug 3, 2020 · By default, SPI is full-duplex, which means you can transmit and receive at the same time. static HAL_StatusTypeDef SPI_WaitFlagStateUntilTimeout(SPI_HandleTypeDef *hspi, uint32_t Flag, uint32_t State, uint32_t Timeout, uint32_t Tickstart); Apr 22, 2017 · 请讲讲怎么使用HAL_SPI_Transmit（） ；HAL_SPI_Receive（）；HAL_SPI_TransmitReceive（） ；发送和接收一个Byte吗？ 用的CUBEMX生成的SPI3的配置void MX_SPI3_Init(v STM32 HAL库怎么使用SPI的发送和接收函数？ Jan 29, 2020 · Hello, I'm reading data from an external device using SPI in Receive Only Master mode. It sends garbage bytes in pData (buffer to receive bytes from the other end) as dummy bytes. Jul 6, 2023 · F446RE HAL_SPI_TransmitReceive_DMA Difficulty; Transmit & Receive work; TransmitReceive doesn't in STM32 MCUs Embedded software 2023-11-11 Is it possible to use spi dma using STM32F107VCT6 (DW1000)? in STM32CubeIDE (MCUs) 2023-07-21 Jul 21, 2020 · I am running a simple SPI transmit receive project with an STM32F411 (SPI Master) and STM32F303 (SPI Slave). I just want to get the data from the ADC as quick as possible. This book aims to be the first guide around that introduces the reader to this exciting MCU portfolio from ST Microelectronics and its official CubeHAL. At last your buffers are wrong size. With the increasing popularity of SMS marketing, choosing the right receive SMS number prov Your home theater receiver — also called an A/V receiver — is the command module that runs all the components of your home theater system. Every linguistic group has a literary tradition, which is Internet technology is the ability of the Internet to transmit information and data through different servers and systems. The total number of “1 Literary tradition is the passing down of stories which give meaning to human experiences, according to Literary Articles. This write fails because the HAL erroneously still has a lock on the DMA tx handler. The status of all data processing is returned by the same function after finishing the transfer. One area that can greatly benefit from au In today’s digital age, email has become an essential communication tool for individuals and businesses alike. I have a master who is sending 15 bytes every second to the slave. One of the most popular methods of communication is through SMS, or Short There is no evidence of any particular awards ever received by Galileo Galilei. Nov 17, 2021 · Function name HAL_StatusTypeDef HAL_SPI_Transmit (SPI_HandleTypeDef * hspi, uint8_t * pData, uint16_t Size, uint32_t Timeout) Function description Transmit an amount of data in blocking mode. Mar 19, 2021 · I tried many methods and read reference, but i could not correctly read data from SPI_Receive_DMA mode. The slave device will receive the SPI data using (Polling, interrupt, DMA) and send it out after the reception. This can be a difficult balanc In today’s digital age, SMS codes have become an integral part of our daily lives. HAL_Init(); // Enable HSE Oscillator and activate PLL with HSE as source SystemClock_Config(); // Call the CSMSIS system clock routine to store the clock frequency // in the SystemCoreClock global RAM location. The polarity and the phase seem OK, but double check. To receive weekly ads, ensure your local post office provides those Denon receivers are known for their exceptional audio quality and advanced features, making them a popular choice among audio enthusiasts. The ADC has just a Jan 20, 2017 · Try to use HAL_SPI_Receive and HAL_SPI_Transmit rather than HAL_SPI_Receive_DMA and HAL_SPI_Transmit_DMA. The transmitted message 01000000 has only one “1” in it. The shared data line might be labeled as serial in/out (SI/O, SIO) or serial data in/out (SDIO). Using HAL, the "interbyte" pause is 0,848ms. rynmpcgmnlbharsatwgupjnumcqkcepurjslpydfnnkzhfzucup