The solution presented in this paper and in the attached source files emulates the mostimportant SSC functions by using SW routines implemented in C. The code is focused onthe SAB C513, but will fit to all C500 derivatives.Beyond the low level software drivers a test shell is delivered. This shell allows a quicktest of the software drivers by an emulator or a starter kit demo board.
上傳時(shí)間： 2013-11-24
上傳用戶：363186
AT91SAM7X系A(chǔ)RM系統(tǒng)開發(fā)功能測(cè)試程序,如果你著手用AT91SAM來進(jìn)行系統(tǒng)開發(fā),這是確實(shí)是個(gè)很好的資料,有了他,會(huì)助你一臂之力.本源碼是ADS1.2下的源碼,用于同步串口SSC功能測(cè)試
上傳時(shí)間： 2016-08-18
上傳用戶：bruce5996
AT91SAM7S64的SSC功能應(yīng)用，用于控制音頻解碼芯片CS4330，在IAR下編譯運(yùn)行。
上傳時(shí)間： 2013-12-26
上傳用戶：笨小孩
SSC Algorithm - competitive for data quantization
標(biāo)簽： quantization competitive Algorithm data
上傳時(shí)間： 2013-12-20
上傳用戶：lijinchuan
modular office SSC modular office typical workstation with table FINAL
標(biāo)簽： modular office workstation typical
上傳時(shí)間： 2013-12-14
上傳用戶：thinode
Synchronous Serial Communications (SSC) is a synchronous serial communications protocol between a target PICmicro microcontroller unit and the PICkit 1 or 2.
標(biāo)簽： Communications communications Synchronous synchronous
上傳時(shí)間： 2013-12-18
上傳用戶：
: Interface definition for driver code for I2C (SSC) interface
標(biāo)簽： definition Interface for interface
上傳時(shí)間： 2017-09-24
上傳用戶：firstbyte
電力線載波通訊是一種低價(jià)方便、并可免除裝設(shè)專用通信線路的通信技術(shù), 文中介紹了利用Chirps 掃描頻率進(jìn)行載波的擴(kuò)頻通訊技術(shù)和CEBUS 總線的有關(guān)協(xié)議, 給出了由SSC P300 芯片構(gòu)成的電力線載波通訊電路在電表自動(dòng)抄收系統(tǒng)中的應(yīng)用設(shè)計(jì)實(shí)例。
標(biāo)簽： 電力線 擴(kuò)頻 載波 設(shè)計(jì)方案
上傳時(shí)間： 2013-11-16
上傳用戶：hanwu
The C500 microcontroller family usually provides only one on-chip synchronous serialchannel (SSC). If a second SSC is required, an emulation of the missing interface mayhelp to avoid an external hardware solution with additional electronic components.The solution presented in this paper and in the attached source files emulates the mostimportant SSC functions by using optimized SW routines with a performance up to 25KBaud in Slave Mode with half duplex transmission and an overhead less than 60% atSAB C513 with 12 MHz. Due to the implementation in C this performance is not the limitof the chip. A pure implementation in assembler will result in a strong reduction of theCPU load and therefore increase the maximum speed of the interface. In addition,microcontrollers like the SAB C505 will speed up the interface by a factor of two becauseof an optimized architecture compared with the SAB C513.Moreover, this solution lays stress on using as few on-chip hardware resources aspossible. A more excessive consumption of those resources will result in a highermaximum speed of the emulated interface.Due to the restricted performance of an 8 bit microcontroller a pin compatible solution isprovided only; the internal register based programming interface is replaced by a set ofsubroutine calls.The attached source files also contain a test shell, which demonstrates how to exchangeinformation between an on-chip HW-SSC and the emulated SW-SSC via 5 external wiresin different operation modes. It is based on the SAB C513 (Siemens 8 bit microcontroller).A table with load measurements is presented to give an indication for the fraction of CPUperformance required by software for emulating the SSC.
標(biāo)簽： synchronous Emulating serial
上傳時(shí)間： 2014-01-31
上傳用戶：z1191176801
Internal Interrupts are used to respond to asynchronous requests from a certain part of themicrocontroller that needs to be serviced. Each peripheral in the TriCore as well as theBus Control Unit, the Debug Unit, the Peripheral Control Processor (PCP) and the CPUitself can generate an Interrupt Request.So what is an external Interrupt?An external Interrupt is something alike as the internal Interrupt. The difference is that anexternal Interrupt request is caused by an external event. Normally this would be a pulseon Port0 or Port1, but it can be even a signal from the input buffer of the SSC, indicatingthat a service is requested.The User’s Manual does not explain this aspect in detail so this ApNote will explain themost common form of an external Interrupt request. This ApNote will show that there is aneasy way to react on a pulse on Port0 or Port1 and to create with this impulse an InterruptService Request. Later in the second part of the document, you can find hints on how todebounce impulses to enable the use of a simple switch as the input device.Note: You will find additional information on how to setup the Interrupt System in theApNote “First steps through the TriCore Interrupt System” (AP3222xx)1. It would gobeyond the scope of this document to explain this here, but you will find selfexplanatoryexamples later on.
標(biāo)簽： Exter easy work with
上傳時(shí)間： 2013-10-27
上傳用戶：zhangyigenius
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