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c8051f340

已有 10160 次阅读| 2008-9-27 12:18 |个人分类:学习

Configuration Wizard 可以为Silicon Laboratories MCU自动生成初始化代码，简化了C8051F的开发，特别适合C8051F的初学者，你不需要再去寄那么多的寄存器名字，一起来跟我做，15分钟就能配置好开发板上的串口，跟PC说“hello”。

Configuration Wizard支持的MCU有：

F00x, F01x, F02x, F04x, F06x, F12x, F13x, F2xx, F30x, F31x, F32x, F33x, F34x, F35x, F36x, F41x, F50x, F52xA, F53xA, F92x, F93x T60x, T61x and T63x

可以从它的官方网站下载到最新版的Configuration Wizard

https://www.silabs.com/products/mcu/Pages/ConfigWizard.aspx

下面我以一个简单的例子来说明Configuration Wizard的使用方法。

试验器材：

C8051F340开发板（使用外部晶振22118400Hz） 1块

U-EC5仿真器 1个

试验目的：

利用C8051F340开发板上的UART1输出“hello”

第一步:打开Configuration Wizard程序，选择“C8051F340”，如下图

然后按“OK”后，自动生成C8051F340的程序框架，如下图

第二步：设置生成C代码，在菜单“Options”中设置，如下图

第三步，配置开发板上的外围设备（如UART，SPI，Timer。。。）都可以在菜单“Peripherals”中完成，如图

1，配置Port I/O,菜单“Peripherals”-“Port I/O”。由于开发板上UART1使用了P0.2和P0.3,所以配置如下：

2，时钟配置，菜单“Peripherals”-“Oscillators”，使用的是外部时钟22118400Hz

3，关闭WDT功能，菜单“Peripherals”-“PCA”

4，UART设置，菜单“Peripherals”-“UART”，波特率设置为9600bps。

第四步，生成代码如下：

/////////////////////////////////////
// Generated Initialization File //
/////////////////////////////////////

#include "C8051F340.h"

// Peripheral specific initialization functions,
// Called from the Init_Device() function
void PCA_Init()
{
PCA0MD &= ~0x40;
PCA0MD = 0x00;
}

void UART_Init()
{
    SBRLL1    = 0x80;
    SBRLH1    = 0xFB;
    SCON1     = 0x10;
    SBCON1    = 0x43;
}

void Port_IO_Init()
{
    // P0.0 - Skipped,     Open-Drain, Digital
    // P0.1 - Skipped,     Open-Drain, Digital
    // P0.2 - TX1 (UART1), Open-Drain, Digital
    // P0.3 - RX1 (UART1), Open-Drain, Digital
    // P0.4 - Unassigned, Open-Drain, Digital
    // P0.5 - Unassigned, Open-Drain, Digital
    // P0.6 - Skipped,     Open-Drain, Analog
    // P0.7 - Skipped,     Open-Drain, Analog

    // P1.0 - Unassigned, Open-Drain, Digital
    // P1.1 - Unassigned, Open-Drain, Digital
    // P1.2 - Unassigned, Open-Drain, Digital
    // P1.3 - Unassigned, Open-Drain, Digital
    // P1.4 - Unassigned, Open-Drain, Digital
    // P1.5 - Unassigned, Open-Drain, Digital
    // P1.6 - Unassigned, Open-Drain, Digital
    // P1.7 - Unassigned, Open-Drain, Digital

    // P2.0 - Unassigned, Open-Drain, Digital
    // P2.1 - Unassigned, Open-Drain, Digital
    // P2.2 - Unassigned, Open-Drain, Digital
    // P2.3 - Unassigned, Open-Drain, Digital
    // P2.4 - Unassigned, Open-Drain, Digital
    // P2.5 - Unassigned, Open-Drain, Digital
    // P2.6 - Unassigned, Open-Drain, Digital
    // P2.7 - Unassigned, Open-Drain, Digital

    // P3.0 - Unassigned, Open-Drain, Digital
    // P3.1 - Unassigned, Open-Drain, Digital
    // P3.2 - Unassigned, Open-Drain, Digital
    // P3.3 - Unassigned, Open-Drain, Digital
    // P3.4 - Unassigned, Open-Drain, Digital
    // P3.5 - Unassigned, Open-Drain, Digital
    // P3.6 - Unassigned, Open-Drain, Digital
    // P3.7 - Unassigned, Open-Drain, Digital

    P0MDIN    = 0x3F;
    P0SKIP    = 0xC3;
    XBR1      = 0x40;
    XBR2      = 0x01;
}

void Oscillator_Init()
{
    int i = 0;
    OSCXCN    = 0x67;
    for (i = 0; i < 3000; i++); // Wait 1ms for initialization
    while ((OSCXCN & 0x80) == 0);
    CLKSEL    = 0x01;
}

// Initialization function for device,
// Call Init_Device() from your main program
void Init_Device(void)
{
    PCA_Init();
    UART_Init();
    Port_IO_Init();
    Oscillator_Init();
}