mira/rtl8710bx-re
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chore: blinky

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Mira
2024-12-07 03:52:01 +06:00
parent 88bffa691d
commit 9e48697f3d
16 changed files with 19200 additions and 87 deletions
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49
src/main.c
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@@ -1,31 +1,42 @@
#include <stdint.h>
#include "rtl8710bx.h"
extern uint32_t DiagPrintf(const char *fmt, ...)
__attribute__((format(printf, 1, 2)));
#define printf DiagPrintf
// GPIO direction register @ 0x1004 (from GPIO_Direction: 12 * port + 0x40000000
// + 0x1000 + 4) For interrupt control: 0x1030: Interrupt enable register
// 0x1038: Interrupt trigger type
// 0x103C: Interrupt polarity
// 0x1048: Interrupt debounce
#define PERIPH_BASE 0x40000000
// 12 * port_number(0) + PERIPH_BASE + 0x1000
#define PORT_A_BASE (PERIPH_BASE + 0x1000)
#define GPIOA_DIR (*(volatile uint32_t *)(PORT_A_BASE + 0x4))
#define GPIOA (*(volatile uint32_t *)(PORT_A_BASE + 0x0))
static inline void delay_cycles(unsigned int count) {
__asm volatile(
"1: \n"
" subs %[count], %[count], #1 \n"
" bne 1b \n"
: [count] "+r"(count)
:
: "cc");
}
static inline void delay_ms(unsigned int ms) {
for (unsigned int i = 0; i < ms; i++) {
delay_cycles(15625); // 62500/4 cycles
}
}
int main(void) {
printf("hello from main\n");
// while (1) {
// __asm("nop");
// }
GPIOA_DIR |= (1 << 0);
PERI_ON->SOC_PERI_FUNC1_EN |= BIT_PERI_GPIO_EN;
PERI_ON->PESOC_CLK_CTRL |= APBPeriph_GPIO_CLOCK;
// branchless
PINMUX_Config_BL(_PA_0, PINMUX_FN_GPIO);
//
PINMUX_Config(_PA_0, PINMUX_FN_GPIO);
PINMUX_ConfigPadPull(_PA_0, GPIO_PuPd_DOWN);
GPIOA->DDR |= (1 << 0);
while (1) {
GPIOA ^= (1 << 0);
for (volatile int i = 0; i < 100000; i++);
GPIOA->DR |= (1 << 0);
delay_ms(2000);
GPIOA->DR &= ~(1 << 0);
delay_ms(2000);
}
}
}