71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
#include "reset.h"
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#include "clock.h"
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#include "sio.h"
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#include "gpio.h"
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#include "uart.h"
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#include "stdio.h"
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#include "RP2040.h"
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struct gpio_cfg_s gpio_led_cfg = {
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.pin = 25,
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.sio_dir = GPIO_SIO_DIR_OUT,
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.funcsel = GPIO_FUNC_SIO,
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.over_out = GPIO_OVER_OUT_PERIPHERAL,
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.over_oe = GPIO_OVER_OE_PERIPHERAL,
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.over_in = GPIO_OVER_IN_PERIPHERAL,
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.over_irq = GPIO_OVER_IRQ_NORMAL,
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.slew_rate = GPIO_PADS_SLEW_RATE_SLOW, /* slew rate control, slow or fast */
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.schmitt = ENABLE, /* enable or disable schmitt */
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.pull_down = DISABLE, /* enable or disable pull down */
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.pull_up = DISABLE, /* enable or disable pull up */
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.drive = GPIO_PADS_DRIVE_STRENGTH_4MA, /* drive strength */
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.ie = DISABLE, /* enable or disable input */
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.od = DISABLE, /* output disable, has priority over output enable from peripherals */
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};
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struct uart_cfg_s uart_cfg = {
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.baudrate = 6 * 1000 * 1000,
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.mode = UART_MODE_TX_RX,
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.data_bits = UART_DATABITS_8,
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.parity = UART_PARITY_NONE,
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.stop_bits = UART_STOPBITS_1,
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.fifo_enable = ENABLE,
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.tx_fifo_level = UART_FIFO_LEVEL_1_2,
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.rx_fifo_level = UART_FIFO_LEVEL_1_2,
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};
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extern volatile uint32_t tick_1ms;
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void isr_uart0(void)
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{
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uint32_t status = uart_int_get_mask_status(UART_ID_0);
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printf("sts = 0x%08lX\t\n", status);
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}
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int main(void)
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{
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reset_enable(RESET_IO_BANK0 | RESET_PADS_BANK0 | RESET_UART0);
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reset_disable(RESET_IO_BANK0 | RESET_PADS_BANK0 | RESET_UART0);
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gpio_init(&gpio_led_cfg);
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gpio_init_simple(0, GPIO_FUNC_UART, DISABLE, ENABLE);
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__enable_irq();
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while (!reset_get_state(RESET_UART0));
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uart_init(UART_ID_0, &uart_cfg);
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uart_int_enable(UART_ID_0, UART_INT_ALL);
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// NVIC_EnableIRQ(UART0_IRQ_IRQn);
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while (1) {
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static uint32_t tick_led = 0;
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if (tick_1ms > (tick_led + 500)) {
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tick_led = tick_1ms;
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gpio_toggle(gpio_led_cfg.pin);
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printf("tick_led = %ld\r\n", tick_led);
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}
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}
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return 0;
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}
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