A use for absolute addressing is to simulate bit-addressable variables. In the following example, we choose to define the variable n_byte at the last byte location in bit-addressable memory. Next, we define n_bit0 to n_bit7 in the last 8 bit locations of...
DS80C400包含一个提供网络栈、内存管理和进程调度的ROM,可以灵活地用于由Java、C和8051汇编编程的应用中。SDCC为8051器件提供了一个免费、开放源码的编译器,并兼容DS80C400的24位寻址模式。用C编写的复杂应用程序在Dallas Semiconductor提供的库的帮助下,可以很容易地使用DS80C400 ROM功能创建。
在编译之前,需要使用cd命令调整目录至/contiki/example/cc2530dk cd ~/contiki/examples/cc2530dk 【技巧提示】 ''~"为home,其实为/home/user。(2014年4月,我当时真的纠结好久,的确不明白~波浪线的用处,好囧) 接着便是编译文件,例如编译blink-hello make blink-hello 初次编译时间可能比较长,下图为编译结果和...
1. Absolute Addressing of xdata variables:Each xdata variable can be initialized at a specific address using the__at keyword. Choose theso that there is no overlap with the code area. Example:__xdata __at (0x3000) unsigned int testVar; This should be done...
In the following example, we choose to define the variable n_byte at the last byte location in bit-addressable memory. Next, we define n_bit0 to n_bit7 in the last 8 bit locations of bit-addressable memory in the 8051-core. As these overlap, the n_byte variable can be bit ...
The processor that I am using is based on the Intel 8051 but a lot of its registers do have new addresses. So, is there a way to tell the SDCC to tell the ASXXXX to ignore the predefined SFR and to use mine instead? The answer I don't think you can without editing the ASXXXX ...
该步骤的主要作用使得SDCC仅支持8051,而禁止对其他MCU的支持。输入以下指令,由于指令较长建议使用paste。 指令: sudo ./configure --disable-gbz80-port --disable-z80-port --disable-ds390-port \ --disable-ds400-port --disable-pic14-port --disable-pic16-port \ ...
The sfr storage class defines a specific Special Function Register (SFR) in the 8051-core. The definition file presented in Appendix A defines all the SFRs in the DS89C430/450 microcontrollers using the sfr identifier. Note that the following example defines the SFRs. Including the definition ...
vscodeconfigurationsdcc8051c51 UpdatedNov 8, 2019 C A small vi clone text editor clone for the MSX 8-bit home computer z80msxsdccvi8bit UpdatedAug 19, 2018 C Example codes using sdcc to target STM8S MCUs. embeddedserialledsdccuartstm8sinterrupt ...
UART1/stdlibstdio example using UART1in progress WatchdogWatchdog timer configurationnot started IAPJump from user program to the bootloadercomplete PWMPulse Width modulation peripheralcomplete SPISerial Peripheral Interfacenot started Timer8051-style Timers 0 and 1not started ...