STM32L010とGPIOで800khz(1.25us)を作る (Keil)
x Mbed2
目的
GPIOのテスト
WS2812Bの前段階
Mbedの時のMbed2とKeilのMbed2とほぼ同じ
約801khz
//h800khz_010_1
#include "mbed.h"
//myled 1.827Mhz 010
//GPIOA->ODR 7,995Mhz 010
#define on1 0b0000000000010000
#define off1 0b0000000000000000
DigitalOut myled(PA_4);
int main() {
__disable_irq(); // disable interrupt
//__enable_irq(); // enable interrupt
//GPIO bkup
int ii = GPIOA->ODR;
// // 1234567890123456
// int on1 = GPIOA->ODR | 0b0000000000010000;
// int off1 = GPIOA->ODR & 0b1111111111101111;
//1:1
while(1) {
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
}//while
// 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3
/*
//0.3us 800khz
while(1) {
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
}//while
*/
// 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
/*
//1us 800khz
while(1) {
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = on1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
GPIOA->ODR = off1;
}//while
*/
}//main
Author And Source
この問題について(STM32L010とGPIOで800khz(1.25us)を作る (Keil)), 我々は、より多くの情報をここで見つけました https://qiita.com/caa45040/items/536eb42856baab83227b著者帰属:元の著者の情報は、元のURLに含まれています。著作権は原作者に属する。
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