spi

Posted on by Jean-Luc Aufranc (CNXSoft) - 7 Comments on Youyeetoo X1 x86 SBC Review – Part 2: GPIO, UART, I2C, SPI, NFC, PoE module, and power consumption

Youyeetoo X1 x86 SBC Review – Part 2: GPIO, UART, I2C, SPI, NFC, PoE module, and power consumption

Youyeetoo X1 GPIO review

The Youyeetoo X1 x86 single board computer (SBC) with an Intel Celeron N5105 Jasper Lake CPU differs from a typical Intel or AMD mini PC by its range of IOs including SPI, I2C, UART, NFC connectivity, and support for PoE module that you won’t find in a typical computer, and that’s what we will test in the second part of the X1 SBC review along with power consumption. The Youyeetoo X1 SBC is also different from Arm-based single board computers since we can just install any x86-compatible operating system by ourselves, and w don’t need to flash a board-specific image like we would do with Arm SBCs and peripherals such as SPI, I2C or UART may be or may not usable immediately due to lack of supported drivers. We’ve already installed Ubuntu 22.04 on the Youyeetoo X1 in the first part of the review, so in the second part, we’ll […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 7 Comments on Gigadevice GD25LE128EXH is a tiny 3x3mm 128Mbit SPI NOR flash

Gigadevice GD25LE128EXH is a tiny 3x3mm 128Mbit SPI NOR flash

GigaDevice 3x3mm SPI flash

GigaDevice Semiconductor has just launched the GD25LE128EXH 128Mbit SPI NOR Flash in a tiny ultra-compact 3x3x0.4mm FO-USON8 package designed for IoT, wearables, healthcare, and networking products. The GD25LE128EXH supports up to 133MHz frequency with four channels delivering up to 532Mbit/s data throughput. GigaDevice also highlights the low power consumption of just 6mA when reading, or a reduction of power consumption by 45% compared to previous devices. GD25LE128EXH specifications: Density – 128Mb I/O Bus – Single I/O, Dual I/O, Quad I/O, QPI Frequency  – 133 MHz (x1 x2 x4) Features H/W RESET WP# Security Registers with OTP Locks Suspend Unique ID HOLD# Voltage – 1.65V~2.0V Package – FO-USON8 3x3mm Temperature Range – -40°C~85°C; -40°C~105°C, or -40°C~125°C The GD25LE128E SPI flash is also available in SOP8 208mil, USON8 4x4mm, WSON8 6x5mm, WSON8 8x6mm, and WLCSP (4-4 ball array) packages, which means the GD25LE128EXH’s FO-USON8 package reduces area by 70% and thickness by […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 13 Comments on $5 CH347 board is a USB 2.0 bridge to I2C, SPI, UART, JTAG, and GPIO

$5 CH347 board is a USB 2.0 bridge to I2C, SPI, UART, JTAG, and GPIO

small CH347 development board

MuseLab USB-HS-Bridge is an inexpensive ($5) board based on WCH CH347 chip with a USB 2.0 Type-C interface that acts as a bridge for I2C, SPI, UART, and JTAG interfaces, as well as GPIOs. It’s notably useful to debug and download bitstreams to FPGA development boards, but it can also be used to connect various peripherals such as I2C sensors, SPI flash devices, UART devices to basically any host with a spare USB 2.0 host port. USB-HS-Bridge specifications: Chip – WCH CH347 high-speed USB to UART, I2C, SPI and JTAG chip (See link to the datasheet for details) USB – 1x USB 2.0 Type-C port with up to 480 Mbps data rate I/Os – 2x 16-pin header with 2x UART interfaces up to 9 Mbps baudrate 1x I2C for EEPROM or sensors 1x SPI master interface with 2 chip select signals to control up to 2x SPI slave devices. The […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on HiPo batteryless NFC-powered 3.52-inch e-Paper display also comes with an SPI interface (Crowdfunding)

HiPo batteryless NFC-powered 3.52-inch e-Paper display also comes with an SPI interface (Crowdfunding)

HiPo display NFC reader

HiPo is a 3.52-inch black and white e-Paper Display that can be updated through NFC without the need for external power and offers an alternative to the 4.2-inch and 7.5-inch NFC-powered e-Paper displays from Wareshare that also operate without battery only using the data and power from NFC to update the image. Alternatively, Guangdong SID Technology’s HiPo display can also be connected to an SPI adapter board allowing the users to connect it to an STM32 board provided by the company, but it could also be used with Arduino boards, ESP8266 & ESP32 hardware platforms, Raspberry Pi SBCs and MCU boards, or any platform with an SPI interface. HiPo specifications: Controller – Ultrachip UC8251 all-in-one driver IC with timing controller for E-tag applications Display 3.52-inch B&W e-Paper display with 360 x 240 resolution (model name: SE0352N01-MNG-A0) 3 seconds refresh time On-chip display RAM White reflectance above 30% Contrast ratio above […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on xSPI MRAM provides an alternative to SPI NOR/NAND flash with up to 400MB/s R/W bandwidth

xSPI MRAM provides an alternative to SPI NOR/NAND flash with up to 400MB/s R/W bandwidth

Everspin xSPI MRAM block diagram

Everspin has unveiled the EMxxLX xSPI MRAM (Magnetoresistive Random Access Memory) non-volatile memory solution for industrial IoT and embedded systems providing an alternative to SPI NOR/NAND flash with much faster R/W data rates of up to 400MB/s and densities between 8Mbit and 64Mbit. The higher speed is made possible by the new JEDEC expanded Serial Peripheral Interface (xSPI) standard interface and a clock frequency of up to 200 MHz, the maximum supported by the xSPI standard. All chips operate at 1.8V, and the family is offered in 24-ball BGA and 8-pin DFN packages. EMxxLX xSPI MRAM key features and specifications: Density – 8Mb, 16Mb, 32Mb, 64Mb 400MBps sustained throughput with OSPI at 200MHz, DTR, for reads and writes Expanded SPI (xSPI) bus interface supporting Octal, Quad, Dual, and Single SPI protocol Up to 200MHz single and double transfer rate (STR/DTR) for Octal SPI Up to 133MHz, SPI, DSPI, QSPI Data […]