随笔分类 -  SPI

摘要:STM32 SPI DMA 的使用 一是想总结一下SPI总线的特点与注意点,二是总结一下SPI DMA的使用一、SPI信号线说明 通常SPI通过4个引脚与外部器件相连:MISO:主设备输入/从设备输出引脚。该引脚在从模式下发送数据,在主模式下接收数据。MOSI:主设备输出/从设备输入引脚。该引脚在... 阅读全文
posted @ 2015-08-25 04:23 IAmAProgrammer 编辑
摘要:The STM32 SPI and FPGA communicationSTM32 spi bus communicationSPI bus in the study, the protocol and hardware description is not to say that the four... 阅读全文
posted @ 2015-08-25 04:16 IAmAProgrammer 编辑
摘要:HOWTO: Use STM32 SPI half duplex modeI’ve got my hands onto some STM32F030F4P6 ARM-Cortex M0 processors.Though touted as “32 cents 32-bit micro”, it i... 阅读全文
posted @ 2015-08-25 04:13 IAmAProgrammer 编辑
摘要:详解SPI中的极性CPOL和相位CPHASPI由于接口相对简单(只需要4根线),用途算是比较广泛,主要应用在 EEPROM,FLASH,实时时钟,AD转换器,还有数字信号处理器和数字信号解码器之间。即一个SPI的Master通过SPI与一个从设备,即上述的那些Flash,ADC等,进行通讯。而主从设... 阅读全文
posted @ 2015-08-23 15:00 IAmAProgrammer 编辑
摘要:#ifndef _W25Q_H_#define _W25Q_H_/*The W25Q16BV array is organized into 8,192 programmable pages of 256-bytes each.Up to 256 bytes can be programmed at a time.Pages can be erased in groups of 16 (sector erase),groups of 128 (32KB block erase),groups of 256 (64KB block erase) orthe entire chip (chip e 阅读全文
posted @ 2013-04-28 18:32 IAmAProgrammer 编辑

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