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53 lines
1.2 KiB
53 lines
1.2 KiB
3 months ago
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#include "uart.h"
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#include "delay.h"
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#include "r_cg_adc.h"
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#include <string.h>
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volatile uint8_t g_uart1_tx_done = 1;
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extern volatile uint16_t g_uart1_tx_count;
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/* UART1 송신용 내부 버퍼 */
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static uint8_t s_uart1_txbuf[1024];
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static void UART1_WaitTxIdle(void)
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{
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unsigned long guard = 0;
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while (g_uart1_tx_count != 0U) {
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if (guard++ > 3000000UL) {
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break;
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}
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}
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}
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void uart1_send_string(const char *str)
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{
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uint16_t len = 0;
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if (str == 0) return;
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while (str[len] != '\0') len++;
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UART1_WaitTxIdle();
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g_uart1_tx_done = 0;
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if (len >= (uint16_t)sizeof(s_uart1_txbuf)) {
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len = (uint16_t)(sizeof(s_uart1_txbuf) - 1);
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}
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memcpy(s_uart1_txbuf, str, len);
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R_UART1_Send(s_uart1_txbuf, len);
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}
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void uart1_send_hex(uint8_t val)
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{
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static uint8_t hex[2];
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uint8_t high = (uint8_t)((val >> 4) & 0x0F);
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uint8_t low = (uint8_t)(val & 0x0F);
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hex[0] = (high < 10U) ? (uint8_t)('0' + high) : (uint8_t)('A' + (high - 10U));
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hex[1] = (low < 10U) ? (uint8_t)('0' + low ) : (uint8_t)('A' + (low - 10U));
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UART1_WaitTxIdle();
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g_uart1_tx_done = 0;
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R_UART1_Send(hex, 2);
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}
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