ARM MMU详细图解及使用存储器管理,访问权限,异常处理等
ARM MMU detailed diagrams and the use of memory management, access permissions, exception handling, etc. (2006-12-19, Others, 66KB, 下载164次)
国标dmb-t芯片lgs-8813资料及开发包，内含lgs-8813的datasheet
GB dmb-chip lgs t-8813 information and development kits, intron lgs- 8813's datasheet (2007-05-17, C/C++, 697KB, 下载85次)
lcm_uc1701x_lcds，很有用的数字收音机驱动程序
Lcm_uc1701x_lcds, very useful digital radio drive process
(2012-03-21, C/C++, 7KB, 下载46次)
S3C2410A的电路原理图,北京恒丰锐科.
Schematic diagram of the circuit S3C2410A (2009-05-25, C/C++, 212KB, 下载23次)
F2812 adc采样程序，采样结果保存到A0通道
F2812 adc sampling procedures, sample results are saved to the A0-channel (2011-03-22, C/C++, 272KB, 下载21次)
MCU是msp430g2553，用timerA0控制LED的闪烁，闪烁速度由快到慢，循环执行
#include "msp430g2553.h"
unsigned char J,K
void main( void )
{
//unsigned char i
// Stop watchdog timer to prevent time out reset
WDTCTL = WDTPW+ WDTHOLD
P1DIR |= BIT6
/*BCSCTL1 &= ~BIT7
do
{
IFG1 &= ~OFIFG
for(i=0xff i>0 i--)
}
while(IFG1&OFIFG)
BCSCTL2 |= SELS+ DIVS_3 */
CCTL0 |= CCIE
CCR0=65000
TACTL |= TASSEL_2+ MC_1 //+ ID_3
_EINT()
LPM0
}
#pragma vector=TIMER0_A0_VECTOR
__interrupt void key(void)
{
P1OUT ^= BIT6
J++
if(J==16)
{
J=0
K++
if(K==1)
{
TACTL &=~(ID0+ ID1)
TACTL |= ID_0
}
if(K==2)
{
TACTL &=~(ID0+ ID1)
TACTL |= ID_1
}
if(K==3)
{
TACTL &=~(ID0+ ID1)
TACTL |= ID_2
}
if(K==4)
{
TACTL &=~(ID0+ ID1)
TACTL |= ID_3
K=0
}
}
}
(2012-07-09, C++ Builder, 21KB, 下载19次)
MSP430F2274中ADC10 系列通道单次采样,对A0 A1 A2 三个通道进行电压检测,ADC结果存于 ad_value[3] 数组中
ADC10 Series MSP430F2274 in a single-channel sampling, A0 A1 A2 for the three channel voltage detector, ADC results stored in ad_value [3] array (2008-12-26, Others, 1KB, 下载18次)
A7、A8热敏打印机 配合arm7使用 驱动
Printer driver (2009-07-13, C/C++, 1KB, 下载17次)
运用STM32这款ARM 芯片，通过蓝牙控制智能机器人的一段程序源码。
Using the STM32 ARM chip, it controls the source code of the intelligent robot through bluetooth. (2018-03-12, C/C++, 19957KB, 下载14次)
Driver for Audio Codec Audio AC 97 CS4205, Cirrus, with STM32F4
Driver for Audio Codec Audio AC 97 CS4205, Cirrus, with STM32F4 (2012-11-14, C/C++, 6KB, 下载11次)
MSP430控制ADC转换的程序，编程语言是C语言
MSP430 control the ADC conversion process, programming language is C language (2011-11-16, C/C++, 17KB, 下载8次)
本例介绍如何使用ADC3和DMA，从ADC3到存储器不断传输转换后的数据。
该ADC3配置为连续转换ADC_CHANNEL_8。
每次转换结束时的DMA传输，在循环模式下，
从ADC3 DR转换后的数据注册到uhADCxConvertedValue变量。
该uhADCxConvertedValue读值编码为12位，VREF +基准电压连接
在董事会到VDD（+ 3.3V）时，Vref-之间的参考电压连接在电路板到地面。
要转换的电压读取值，这里是方程适用于：
电压= uhADCxConvertedValue *（VREF + - VREF-）/（2 ^ 12）= uhADCxConvertedValue * 3.3 / 4096
在这个例子中，系统时钟是216MHz，APB2 = 108MHz的和ADC时钟= APB2 / 4。
因为ADC3时钟是27MHz和采样时间被设定为3个周期，在转换
时间12bit的数据是12个周期所以总的转换时间为（12 + 3）/ 27 = 0.56us（1.57Msps）。
用户可以通过应用引脚PF10连接到Arduino的CN5针A1的输入电压改变ADC_CHANNEL_8电压。
STM32评估板的LED可用于监控传输状态：
- LED1为ON时，转换完成。
- 当初始化错误发生LED1闪烁。
This example describes how to use the ADC3 and DMA to transfer continuously
converted data ADC3 to memory.
The ADC3 is configured to convert continuously ADC_CHANNEL_8.
Each time an end of conversion occurs the DMA transfers, in circular mode, the
converted data ADC3 DR register to the uhADCxConvertedValue variable.
The uhADCxConvertedValue read value is coded on 12 bits, the Vref+ reference voltage is connected
on the board to VDD (+3.3V), the Vref- reference voltage is connected on the board to the ground.
To convert the read value in volts, here is the equation to apply :
Voltage = uhADCxConvertedValue* (Vref+- Vref-)/(2^12) = uhADCxConvertedValue* 3.3/4096
In this example, the system clock is 216MHz, APB2 = 108MHz and ADC clock = APB2/4.
Since ADC3 clock is 27 MHz and sampling time is set to 3 cycles, the conversion
time to 12bit data is 12 cycles so the total conversion time is (12+3)/27 = 0.56us(1.57Msps).
User can vary the ADC_CHANNEL_8 voltage by app (2015-10-28, C/C++, 52KB, 下载6次)
ADS1100模数转换；单片机是ATC12C5410AD；两个ADS1100模块，两路AD；P1.0接SCA-A1；P1.1接SDA-A1；P1.2接SCA-A2；P1.3接SDA-A2；测试成功
about AD of ADS1100；two channel (2013-10-09, C/C++, 400KB, 下载6次)
瞄准全高清平板市场，全志推出最新A83T八核处理器
全志A83T采用台积电28nm HPC制造工艺，基于ARM Cortex-A7构架，八个核心，主频最高可达2GHz，支持领先的big.LITTLE架构。而在GPU方面，A83T采用Imagination Technology旗下的PowerVR系列GPU，提供最均衡的图像处理性能和功耗。 (2014-10-25, HTML, 12KB, 下载5次)
当/CS变为低电平后， TLC549芯片被选中， 同时前次转换结果的最高有效位MSB （A7）自 DATA OUT 端输出，接着要求自 I/O CLOCK 端输入8个外部时钟信号，前7个 I/O CLOCK信号的作用，是配合 TLC549 输出前次转换结果的 A6-A0 位，并为本次转换做准备：在第4个 I/O CLOCK 信号由高至低的跳变之后，片内采样/保持电路对输入模拟量采样开始，第8个 I/O CLOCK 信号的下降沿使片内采样/保持电路进入保持状态并启动 A/D开始转换。转换时间为 36 个系统时钟周期，最大为 17us。直到 A/D转换完成前的这段时间内，TLC549 的控制逻辑要求：或者/CS保持高电平，或者 I/O CLOCK 时钟端保持36个系统时钟周期的低电平。由此可见，在自 TLC549的 I/O CLOCK 端输入8个外部时钟信号期间需要完成以下工作：读入前次A/D转换结果；对本次转换的输入模拟信号采样并保持；启动本次 A/D转换开始。
TLC549 is TI company a low price, high performance 8 bit A/D converter, it takes 8 switched capacitor successive approximation method to realize A/D conversion, the conversion speed is less than 17us, the maximum conversion rate of 40000HZ, 4MHZ typical internal system clock, the power of 3V to 6V. It is convenient to use three line serial interface mode and a variety of microprocessor is connected, a variety of inexpensive measure and control system. (2011-11-15, C++ Builder, 262KB, 下载5次)
FM Tranceiver QN8000 A1 test program
FM Tranceiver QN8000 A1 test program (2011-10-18, C/C++, 877KB, 下载5次)
FM Receiver QN8000 test program
FM Receiver QN8000 test program (2011-10-18, C/C++, 877KB, 下载5次)
// Description: A single sample is made on A0 with reference to AVcc.
// Software sets ADC10SC to start sample and conversion - ADC12SC
// automatically cleared at EOC. ADC12 internal oscillator times sample (16x)
// and conversion. In Mainloop MSP430 waits in LPM0 to save power until ADC12
// conversion complete, ADC12_ISR will force exit from LPM0 in Mainloop on
// reti. If A0 > 0.5*AVcc, P1.0 set, else reset.
// Description: A single sample is made on A0 with reference to AVcc.
// Software sets ADC10SC to start sample and conversion- ADC12SC
// automatically cleared at EOC. ADC12 internal oscillator times sample (16x)
// and conversion. In Mainloop MSP430 waits in LPM0 to save power until ADC12
// conversion complete, ADC12_ISR will force exit from LPM0 in Mainloop on
// reti. If A0 > 0.5*AVcc, P1.0 set, else reset. (2011-07-28, Visual C++, 904KB, 下载3次)
mini2440的裸机MMU驱动程序，希望对大家有用。。。。。。。。。。。。。。。
mini2440 program (2014-07-04, C/C++, 4KB, 下载3次)
you can use this code to read/write the stm32 internal flash.
you can use this code to read/write the stm32 internal flash. (2018-01-26, C/C++, 305KB, 下载3次)