This post was last edited by DavidZH on 2016-12-11 17:39 The previous post compared the onboard resources of STM32F769 and STM32F746 Discovery. This post focuses on the comparison of MCU and the use of different peripherals:
Master MCU: First, let's take a look at the summary of the internal resources of the master MCU. By comparing them, we can clearly see the gap between the two; The differences are as follows: (The five-pointed stars in the following figure indicate the differences) 1. The FLASH and SRAM space are increased; the STM32F69 can be increased to 2Mb at most; 2. Added MIPI-DSI LCD interface and hardware JPEG decoding; 3. Added DFSDM internal resources; 4. The number of communication interface methods has increased to 28; In other words, STM32F69 can better reflect the support for LCD screen and has better performance;
STM32F769IG.pdf
(3.3 MB, downloads: 7)
QSPI-FLASH comparison: STM32F769's QSPI is 512Mb Maxim MX25L51245G Chip; 4 times that used in F746; larger capacity;
【MAXIM 512Mb QSPI-FLASH】MX25L51245G.pdf
(1.65 MB, downloads: 12)
PoE-PD chip: (PMA8800A) and RJ45 function form PoE-PD circuit; the chip integrates PoE-PD interface, with a withstand voltage of 100V, controlled by MOSFET, and can withstand up to 800mA; reference materials are as follows:
【PoE-PD 集成芯片】PM8800A.pdf
(217.82 KB, downloads: 14)
【Microchip 10&100以太网收发器】LAN8742A.pdf
(1.01 MB, downloads: 11)
MEMS interface: The number and functions of ST MEMS used in F769 and F746 are different; the MEMS in F769 is equipped with DFSDM (Digital filter for Sigma-Delta Modulators); STM32F769 STM32F746
Let’s take a look at the functional description of DFSDM:
That is to say, ST MEMS in F769 The functions will be much more powerful, which will be reflected in the subsequent comparison with Record Audio;271270[/attach] USB interface: The number of USB interfaces has been reduced from 2 in F746 to 1; only the UBS_OTG HS interface is retained, with a transmission speed of 480Mbit/s; the driver chip used is USB3320C-EZK;271264[/attach]
【MICROCHIP 高速USB2.0收发器 】USB3320C-EZK.pdf
(1.28 MB, downloads: 15)
【USB 接口】en.STM32F7_Peripheral_USB_OTG_FS_HS.pdf
(1.16 MB, downloads: 13)
Other peripheral information:
【16MB SDRAM】MT48LC4M32B2B5-6A .pdf
(4.49 MB, downloads: 8)
Click here to view the official resources of the STM32F769I development board. [/url]
提升卡
变色卡
千斤顶
京公网安备 11010802033920号
