发现了C*Core国芯芯片中SCI发送与接受方波特率误差导致数据不匹配问题,分析了发送与接受方数据传输丢帧、误帧现象出现的根本原因,总结了SCI容限值与芯片主频及标准波特率之间规律,提出了解决问题的优化方案并通过C*Core C语言编写程序实现。实验证明,优化后的SCI初始化程序可确保SCI发送与接收方不受波特率设置值、芯片主频大小影响,使数据传输过程中不丢帧、不误帧。
上传时间: 2013-10-09
上传用户:685
SL811开发资料_包含源程序_电路图_芯片资料:SL811HS Embedded USB Host/Slave Controller.The SL811HS is an Embedded USB Host/Slave Controller capable of communicate with either full-speed or low-speed USB peripherals. The SL811HS can interface to devices such as microprocessors, microcontrollers, DSPs, or directly to a variety of buses such as ISA, PCMCIA, and others. The SL811HS USB Host Controller conforms to USB Specification 1.1.The SL811HS USB Host/Slave Controller incorporates USB Serial Interface functionality along with internal full-/low-speed transceivers.The SL811HS supports and operates in USB full-speed mode at 12 Mbps, or at low-speed 1.5-Mbps mode.The SL811HS data port and microprocessor interface provide an 8-bit data path I/O or DMA bidirectional, with interrupt support to allow easy interface to standard microprocessors or microcontrollers such as Motorola or Intel CPUs and many others. Internally,the SL811HS contains a 256-byte RAM data buffer which is used for control registers and data buffer.The available package types offered are a 28-pin PLCC (SL811HS) and a 48-pin TQFP package (SL811HST-AC). Both packages operate at 3.3 VDC. The I/O interface logic is 5V-tolerant.
上传时间: 2013-12-22
上传用户:a82531317
摘要:介绍了CYPRESS公司生产的主/从双工作模式USB接口芯片SL811HS的性能与内部结构,给出了SL811HS芯片在单片机系统中扩展USB接口的硬件电路,同时给出了该系统的USB驱动程序及实现U盘读写功能的应用程序。关键词:SL811HS;USB接口;驱动程序;U盘读写
上传时间: 2014-01-17
上传用户:qimingxing130
指纹识别芯片fps200(富士通)在linux下的驱动程序(for arm7(ep7312) linux,其他芯片需要修改映射内存地址)
上传时间: 2014-12-02
上传用户:kiklkook
AD芯片TLC2543的转换例程。
上传时间: 2015-01-09
上传用户:zhuyibin
64和弦芯片资料
上传时间: 2015-01-11
上传用户:zsjinju
H.261图像压缩芯片控制软件
上传时间: 2015-01-12
上传用户:gundamwzc
基于ARM芯片的代码烧录程序文件
上传时间: 2015-01-13
上传用户:pkkkkp
这是在C5000系列DSP上实现UART(异步串口)TL16c550芯片的汇编语言实现代码,可直接在CCS上运行,在PC机上用串口精灵或超级终端接收
上传时间: 2015-01-13
上传用户:ve3344
STV0297的QAM解码芯片的 Linux 驱动程序
上传时间: 2013-11-29
上传用户:ikemada