Programmer Think

This article refers to cc253x system on chip solution for 2.4-GHz. If it is difficult to read English, a company has issued a Chinese translation, but some may be wrong. The English version is mainly used. This article mainly describes the timing function of cc2530 timer 1. More functions are being updated 1. Timer 1 Introduction Tim ...

①.   First, choose not to use PLL. Let the external 24MHz raw clock pass directly and bypass the APLL path .global clock_init clock_init: ldr r0, =ELFIN_CLOCK_POWER_BASE // 1 set various clock switches and do not use PLL for the time being ldr r1, =0x0 // Chip manual P378 register CLK_SRC: Select clock source 0 (Main) str r1, [r0 ...

1, Understanding registers (1) What is a register          Registers are some small storage areas used to store data in the CPU. They are used to temporarily store instructions, data and addresses involved in operations. Is a common sequential logic circuit, but this sequential logic circuit only includ ...

1, Design ideas This experiment uses GPIOB, GPIOC and GPIOD to control LED lights. GPIO is the abbreviation of general input and output port. In short, it is the STM32 controllable pin, STM32 chip The GPIO pin of is connected with external devices to realize the functions of external communication, control and data acquisition. 1.GPIO mode C ...

1, Address and register mapping In STM32F103 chip, the controlled units including peripherals such as FLASH, RAM and other functional components are arranged in a 4GB address space. We can find them through their addresses during programming, and then operate them to read and write data. The memory itself does not have address information. It ...

catalogue 1, Experimental preparation 2, Find address 3, Programming 1. Open keil5 to create a project selection chip (stm32F103c8 I use here)   2. Set chip parameters 3. Add function file 4. Write code   5. Compile and generate hex file 4, Burning and achievements 1. Connection 2. Start the burning procedure   3. E ...

preface This design mainly introduces the single chip microcomputer program design idea and circuit design of intersection traffic lights circuit design Generally speaking, the circuit design of traffic lights is relatively simple. It mainly depends on whether the designer wants to realize more functional intelligent traffic lights. If it is si ...

Disclaimer: This article is my notes on learning "teach you the program framework of single chip microcomputer hand in hand - Wu Jianhong" Original link: Section 8: execute independent key scanning program in timing interrupt function. original text Section 8: execute independent key scanning program in timing interrupt fun ...

Disclaimer: This article is my notes on learning "teach you the program framework of single chip microcomputer hand in hand - Wu Jianhong" Original link: Section II: delay to realize the flashing of LED lights. original text Section II: delay to realize the flashing of LED lights. Opening remarks: In the last section, broth ...

Tip: after the article is written, the directory can be generated automatically. Please refer to the help document on the right for how to generate it preface At present, I am playing the college students' embedded competition. My responsibility is to develop the Hi3861 development board. Because I used to play more STM32, the generated ...