Arduino IDE中编译、上传代码到开发板中,然后需要手动Reset开发板重启; 2、CPU Frequency 该选项顾名思义就是让你设置CPU的时钟频率,有6个频率可供选择。 想让CPU性能拉满,肯定是全速的240MHz,这时候耗能也就越多,所以假如想降低功耗,那得降低CPU主频,这里选择的依据就要看你的使用场景。学习时,不考虑耗能,直...
//#define TFT_RST -1 // Set TFT_RST to -1 if the display RESET is connected to processor reset // Use an Arduino pin for initial testing as connecting to processor reset // may not work (pulse too short at power up?) // ### // // Section 3. Define the fonts that are to ...
//#define TFT_RST -1 // Set TFT_RST to -1 if the display RESET is connected to processor reset // Use an Arduino pin for initial testing as connecting to processor reset // may not work (pulse too short at power up?) // ### // // Section 3. Define the fonts that are to ...
Use U8X8_PIN_NONE if the reset pin is not connected //U8G2_NULL u8g2(U8G2_R0); // null device, a 8x8 pixel display which does nothing //U8G2_SSD1306_128X64_NONAME_F_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* ...
When the logic state of an external interrupt pin changes, it fires an interrupt signal to the CPU. So, the CPU suspends the main program execution and goes to handle a specific routine (or function) usually referred to as interrupt service routine (ISR). ...
Connect a .1uf capacitor from pin 4 of the DB9 to the AVR reset line to be able to download sketches without hitting the reset button. scharkalvin May 6, 2012 at 10:11 am BTW, When programming the boot loader onto the atmega1284p I would leave the JTAG fuse enabled (don’t ...
struct rst_info resetInfo; /* Not static, used in core_esp8266_postmortem.c and other places. * Placed into noinit section because we assign value to this variable * before .bss is zero-filled, and need to preserve the value.
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模块采用电压为3.3V,通过SPI接口简单的几条线就可以直接与用户任何CPU主板相连接通信,可以保证模块稳定...
开发板管理器中,搜索esp32,安装2.0.13版本(需要安装2.0.16之前版本,不然不匹配tft_eSPI库,程序会重启)。 img 2. 安装tft_eSPI库 2.1. 驱动库安装 库管理中,搜索tft_eSPI,安装最新版本2.5.43。 img 2.2. 库代码修改 这里需要修改引脚代码,适配st7789驱动。