From 7d7389cac55952fcb794d2632747a8adc1e119ee Mon Sep 17 00:00:00 2001
From: Dien-Nhung Nguyen-Phu <kein@kienlab.com>
Date: Wed, 15 May 2024 12:43:35 +0700
Subject: init blink project

generated project from EVT
---
 .../StdPeriphDriver/CH58x_uart0.c                  | 151 +++++++++++++++++++++
 1 file changed, 151 insertions(+)
 create mode 100644 CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_uart0.c

(limited to 'CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_uart0.c')

diff --git a/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_uart0.c b/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_uart0.c
new file mode 100644
index 0000000..546da00
--- /dev/null
+++ b/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_uart0.c
@@ -0,0 +1,151 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : CH58x_uart0.c
+ * Author             : WCH
+ * Version            : V1.2
+ * Date               : 2021/11/17
+ * Description
+ *********************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * Attention: This software (modified or not) and binary are used for 
+ * microcontroller manufactured by Nanjing Qinheng Microelectronics.
+ *******************************************************************************/
+
+#include "CH58x_common.h"
+
+/*********************************************************************
+ * @fn      UART0_DefInit
+ *
+ * @brief   串口默认初始化配置
+ *
+ * @param   none
+ *
+ * @return  none
+ */
+void UART0_DefInit(void)
+{
+    UART0_BaudRateCfg(115200);
+    R8_UART0_FCR = (2 << 6) | RB_FCR_TX_FIFO_CLR | RB_FCR_RX_FIFO_CLR | RB_FCR_FIFO_EN; // FIFO打开，触发点4字节
+    R8_UART0_LCR = RB_LCR_WORD_SZ;
+    R8_UART0_IER = RB_IER_TXD_EN;
+    R8_UART0_DIV = 1;
+}
+
+/*********************************************************************
+ * @fn      UART0_BaudRateCfg
+ *
+ * @brief   串口波特率配置
+ *
+ * @param   baudrate    - 波特率
+ *
+ * @return  none
+ */
+void UART0_BaudRateCfg(uint32_t baudrate)
+{
+    uint32_t x;
+
+    x = 10 * GetSysClock() / 8 / baudrate;
+    x = (x + 5) / 10;
+    R16_UART0_DL = (uint16_t)x;
+}
+
+/*********************************************************************
+ * @fn      UART0_ByteTrigCfg
+ *
+ * @brief   串口字节触发中断配置
+ *
+ * @param   b       - 触发字节数 refer to UARTByteTRIGTypeDef
+ *
+ * @return  none
+ */
+void UART0_ByteTrigCfg(UARTByteTRIGTypeDef b)
+{
+    R8_UART0_FCR = (R8_UART0_FCR & ~RB_FCR_FIFO_TRIG) | (b << 6);
+}
+
+/*********************************************************************
+ * @fn      UART0_INTCfg
+ *
+ * @brief   串口中断配置
+ *
+ * @param   s       - 中断控制状态，是否使能相应中断
+ * @param   i       - 中断类型
+ *                    RB_IER_MODEM_CHG  - 调制解调器输入状态变化中断使能位（仅 UART0 支持）
+ *                    RB_IER_LINE_STAT  - 接收线路状态中断
+ *                    RB_IER_THR_EMPTY  - 发送保持寄存器空中断
+ *                    RB_IER_RECV_RDY   - 接收数据中断
+ *
+ * @return  none
+ */
+void UART0_INTCfg(FunctionalState s, uint8_t i)
+{
+    if(s)
+    {
+        R8_UART0_IER |= i;
+        R8_UART0_MCR |= RB_MCR_INT_OE;
+    }
+    else
+    {
+        R8_UART0_IER &= ~i;
+    }
+}
+
+/*********************************************************************
+ * @fn      UART0_Reset
+ *
+ * @brief   串口软件复位
+ *
+ * @param   none
+ *
+ * @return  none
+ */
+void UART0_Reset(void)
+{
+    R8_UART0_IER = RB_IER_RESET;
+}
+
+/*********************************************************************
+ * @fn      UART0_SendString
+ *
+ * @brief   串口多字节发送
+ *
+ * @param   buf     - 待发送的数据内容首地址
+ * @param   l       - 待发送的数据长度
+ *
+ * @return  none
+ */
+void UART0_SendString(uint8_t *buf, uint16_t l)
+{
+    uint16_t len = l;
+
+    while(len)
+    {
+        if(R8_UART0_TFC != UART_FIFO_SIZE)
+        {
+            R8_UART0_THR = *buf++;
+            len--;
+        }
+    }
+}
+
+/*********************************************************************
+ * @fn      UART0_RecvString
+ *
+ * @brief   串口读取多字节
+ *
+ * @param   buf     - 读取数据存放缓存区首地址
+ *
+ * @return  读取数据长度
+ */
+uint16_t UART0_RecvString(uint8_t *buf)
+{
+    uint16_t len = 0;
+
+    while(R8_UART0_RFC)
+    {
+        *buf++ = R8_UART0_RBR;
+        len++;
+    }
+
+    return (len);
+}
+
-- 
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