generated from hulk/gd32e23x_template
44 lines
910 B
C
44 lines
910 B
C
/*!
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\file main.c
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\brief led spark with systick, USART print and key example
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\version 2024-02-22, V2.1.0, firmware for GD32E23x
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*/
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#include "main.h"
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/*!
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\brief main function
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\param[in] none
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\param[out] none
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\retval none
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*/
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int main(void)
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{
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/* configure systick */
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systick_config();
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/* configure USART */
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rs485_config();
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/* configure LED */
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led_blink_config();
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/* configure FWDGT */
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watchdog_init();
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printf("system start!\r\n");
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while(1){
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printf("hello world!\r\n");
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delay_ms(500);
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watchdog_reload();
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}
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}
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/* retarget the C library printf function to the USART */
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int _write(int fd, char *pBuffer, int size) {
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for (int i = 0; i < size; i++) {
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usart_data_transmit(USART0, (uint8_t) pBuffer[i]);
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while (RESET == usart_flag_get(USART0, USART_FLAG_TBE));
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}
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return size;
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}
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