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Diffstat (limited to 'CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_spi0.c')
-rw-r--r--CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_spi0.c368
1 files changed, 368 insertions, 0 deletions
diff --git a/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_spi0.c b/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_spi0.c
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index 0000000..7b75bdf
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+++ b/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_spi0.c
@@ -0,0 +1,368 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name : CH58x_SPI0.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 SPI0_MasterDefInit
+ *
+ * @brief 主机模式默认初始化：模式0+3线全双工+8MHz
+ *
+ * @param none
+ *
+ * @return none
+ */
+void SPI0_MasterDefInit(void)
+{
+ R8_SPI0_CLOCK_DIV = 4; // 主频时钟4分频
+ R8_SPI0_CTRL_MOD = RB_SPI_ALL_CLEAR;
+ R8_SPI0_CTRL_MOD = RB_SPI_MOSI_OE | RB_SPI_SCK_OE;
+ R8_SPI0_CTRL_CFG |= RB_SPI_AUTO_IF; // 访问BUFFER/FIFO自动清除IF_BYTE_END标志
+ R8_SPI0_CTRL_CFG &= ~RB_SPI_DMA_ENABLE; // 不启动DMA方式
+}
+
+/*********************************************************************
+ * @fn SPI0_CLKCfg
+ *
+ * @brief SPI0 基准时钟配置，= d*Tsys
+ *
+ * @param c - 时钟分频系数
+ *
+ * @return none
+ */
+void SPI0_CLKCfg(uint8_t c)
+{
+ if(c == 2)
+ {
+ R8_SPI0_CTRL_CFG |= RB_SPI_MST_DLY_EN;
+ }
+ else
+ {
+ R8_SPI0_CTRL_CFG &= ~RB_SPI_MST_DLY_EN;
+ }
+ R8_SPI0_CLOCK_DIV = c;
+}
+
+/*********************************************************************
+ * @fn SPI0_DataMode
+ *
+ * @brief 设置数据流模式
+ *
+ * @param m - 数据流模式 refer to ModeBitOrderTypeDef
+ *
+ * @return none
+ */
+void SPI0_DataMode(ModeBitOrderTypeDef m)
+{
+ switch(m)
+ {
+ case Mode0_LowBitINFront:
+ R8_SPI0_CTRL_MOD &= ~RB_SPI_MST_SCK_MOD;
+ R8_SPI0_CTRL_CFG |= RB_SPI_BIT_ORDER;
+ break;
+ case Mode0_HighBitINFront:
+ R8_SPI0_CTRL_MOD &= ~RB_SPI_MST_SCK_MOD;
+ R8_SPI0_CTRL_CFG &= ~RB_SPI_BIT_ORDER;
+ break;
+ case Mode3_LowBitINFront:
+ R8_SPI0_CTRL_MOD |= RB_SPI_MST_SCK_MOD;
+ R8_SPI0_CTRL_CFG |= RB_SPI_BIT_ORDER;
+ break;
+ case Mode3_HighBitINFront:
+ R8_SPI0_CTRL_MOD |= RB_SPI_MST_SCK_MOD;
+ R8_SPI0_CTRL_CFG &= ~RB_SPI_BIT_ORDER;
+ break;
+ default:
+ break;
+ }
+}
+
+/*********************************************************************
+ * @fn SPI0_MasterSendByte
+ *
+ * @brief 发送单字节 (buffer)
+ *
+ * @param d - 发送字节
+ *
+ * @return none
+ */
+void SPI0_MasterSendByte(uint8_t d)
+{
+ R8_SPI0_CTRL_MOD &= ~RB_SPI_FIFO_DIR;
+ R8_SPI0_BUFFER = d;
+ while(!(R8_SPI0_INT_FLAG & RB_SPI_FREE));
+}
+
+/*********************************************************************
+ * @fn SPI0_MasterRecvByte
+ *
+ * @brief 接收单字节 (buffer)
+ *
+ * @param none
+ *
+ * @return 接收到的字节
+ */
+uint8_t SPI0_MasterRecvByte(void)
+{
+ R8_SPI0_CTRL_MOD &= ~RB_SPI_FIFO_DIR;
+ R8_SPI0_BUFFER = 0xFF; // 启动传输
+ while(!(R8_SPI0_INT_FLAG & RB_SPI_FREE));
+ return (R8_SPI0_BUFFER);
+}
+
+/*********************************************************************
+ * @fn SPI0_MasterTrans
+ *
+ * @brief 使用FIFO连续发送多字节
+ *
+ * @param pbuf - 待发送的数据内容首地址
+ * @param len - 请求发送的数据长度，最大4095
+ *
+ * @return none
+ */
+void SPI0_MasterTrans(uint8_t *pbuf, uint16_t len)
+{
+ uint16_t sendlen;
+
+ sendlen = len;
+ R8_SPI0_CTRL_MOD &= ~RB_SPI_FIFO_DIR; // 设置数据方向为输出
+ R16_SPI0_TOTAL_CNT = sendlen; // 设置要发送的数据长度
+ R8_SPI0_INT_FLAG = RB_SPI_IF_CNT_END;
+ while(sendlen)
+ {
+ if(R8_SPI0_FIFO_COUNT < SPI_FIFO_SIZE)
+ {
+ R8_SPI0_FIFO = *pbuf;
+ pbuf++;
+ sendlen--;
+ }
+ }
+ while(R8_SPI0_FIFO_COUNT != 0); // 等待FIFO中的数据全部发送完成
+}
+
+/*********************************************************************
+ * @fn SPI0_MasterRecv
+ *
+ * @brief 使用FIFO连续接收多字节
+ *
+ * @param pbuf - 待接收的数据首地址
+ * @param len - 待接收的数据长度，最大4095
+ *
+ * @return none
+ */
+void SPI0_MasterRecv(uint8_t *pbuf, uint16_t len)
+{
+ uint16_t readlen;
+
+ readlen = len;
+ R8_SPI0_CTRL_MOD |= RB_SPI_FIFO_DIR; // 设置数据方向为输入
+ R16_SPI0_TOTAL_CNT = len; // 设置需要接收的数据长度，FIFO方向为输入长度不为0则会启动传输 */
+ R8_SPI0_INT_FLAG = RB_SPI_IF_CNT_END;
+ while(readlen)
+ {
+ if(R8_SPI0_FIFO_COUNT)
+ {
+ *pbuf = R8_SPI0_FIFO;
+ pbuf++;
+ readlen--;
+ }
+ }
+}
+
+/*********************************************************************
+ * @fn SPI0_MasterDMATrans
+ *
+ * @brief DMA方式连续发送数据
+ *
+ * @param pbuf - 待发送数据起始地址,需要四字节对其
+ * @param len - 待发送数据长度
+ *
+ * @return none
+ */
+void SPI0_MasterDMATrans(uint8_t *pbuf, uint16_t len)
+{
+ R8_SPI0_CTRL_MOD &= ~RB_SPI_FIFO_DIR;
+ R16_SPI0_DMA_BEG = (uint32_t)pbuf;
+ R16_SPI0_DMA_END = (uint32_t)(pbuf + len);
+ R16_SPI0_TOTAL_CNT = len;
+ R8_SPI0_INT_FLAG = RB_SPI_IF_CNT_END | RB_SPI_IF_DMA_END;
+ R8_SPI0_CTRL_CFG |= RB_SPI_DMA_ENABLE;
+ while(!(R8_SPI0_INT_FLAG & RB_SPI_IF_CNT_END));
+ R8_SPI0_CTRL_CFG &= ~RB_SPI_DMA_ENABLE;
+}
+
+/*********************************************************************
+ * @fn SPI0_MasterDMARecv
+ *
+ * @brief DMA方式连续接收数据
+ *
+ * @param pbuf - 待接收数据存放起始地址,需要四字节对其
+ * @param len - 待接收数据长度
+ *
+ * @return none
+ */
+void SPI0_MasterDMARecv(uint8_t *pbuf, uint16_t len)
+{
+ R8_SPI0_CTRL_MOD |= RB_SPI_FIFO_DIR;
+ R16_SPI0_DMA_BEG = (uint32_t)pbuf;
+ R16_SPI0_DMA_END = (uint32_t)(pbuf + len);
+ R16_SPI0_TOTAL_CNT = len;
+ R8_SPI0_INT_FLAG = RB_SPI_IF_CNT_END | RB_SPI_IF_DMA_END;
+ R8_SPI0_CTRL_CFG |= RB_SPI_DMA_ENABLE;
+ while(!(R8_SPI0_INT_FLAG & RB_SPI_IF_CNT_END));
+ R8_SPI0_CTRL_CFG &= ~RB_SPI_DMA_ENABLE;
+}
+
+/*********************************************************************
+ * @fn SPI0_SlaveInit
+ *
+ * @brief 设备模式默认初始化，建议设置MISO的GPIO对应为输入模式
+ *
+ * @return none
+ */
+void SPI0_SlaveInit(void)
+{
+ R8_SPI0_CTRL_MOD = RB_SPI_ALL_CLEAR;
+ R8_SPI0_CTRL_MOD = RB_SPI_MISO_OE | RB_SPI_MODE_SLAVE;
+ R8_SPI0_CTRL_CFG |= RB_SPI_AUTO_IF;
+}
+
+/*********************************************************************
+ * @fn SPI0_SlaveRecvByte
+ *
+ * @brief 从机模式，接收一字节数据
+ *
+ * @return 接收到数据
+ */
+uint8_t SPI0_SlaveRecvByte(void)
+{
+ R8_SPI0_CTRL_MOD |= RB_SPI_FIFO_DIR;
+ while(R8_SPI0_FIFO_COUNT == 0);
+ return R8_SPI0_FIFO;
+}
+
+/*********************************************************************
+ * @fn SPI0_SlaveSendByte
+ *
+ * @brief 从机模式，发送一字节数据
+ *
+ * @param d - 待发送数据
+ *
+ * @return none
+ */
+void SPI0_SlaveSendByte(uint8_t d)
+{
+ R8_SPI0_CTRL_MOD &= ~RB_SPI_FIFO_DIR;
+ R8_SPI0_FIFO = d;
+ while(R8_SPI0_FIFO_COUNT != 0); // 等待发送完成
+}
+
+/*********************************************************************
+ * @fn SPI0_SlaveRecv
+ *
+ * @brief 从机模式，接收多字节数据
+ *
+ * @param pbuf - 接收收数据存放起始地址
+ * @param len - 请求接收数据长度
+ *
+ * @return none
+ */
+void SPI0_SlaveRecv(uint8_t *pbuf, uint16_t len)
+{
+ uint16_t revlen;
+
+ revlen = len;
+ R8_SPI0_CTRL_MOD |= RB_SPI_FIFO_DIR;
+ R8_SPI0_INT_FLAG = RB_SPI_IF_CNT_END;
+ while(revlen)
+ {
+ if(R8_SPI0_FIFO_COUNT)
+ {
+ *pbuf = R8_SPI0_FIFO;
+ pbuf++;
+ revlen--;
+ }
+ }
+}
+
+/*********************************************************************
+ * @fn SPI0_SlaveTrans
+ *
+ * @brief 从机模式，发送多字节数据
+ *
+ * @param pbuf - 待发送的数据内容首地址
+ * @param len - 请求发送的数据长度，最大4095
+ *
+ * @return none
+ */
+void SPI0_SlaveTrans(uint8_t *pbuf, uint16_t len)
+{
+ uint16_t sendlen;
+
+ sendlen = len;
+ R8_SPI0_CTRL_MOD &= ~RB_SPI_FIFO_DIR; // 设置数据方向为输出
+ R8_SPI0_INT_FLAG = RB_SPI_IF_CNT_END;
+ while(sendlen)
+ {
+ if(R8_SPI0_FIFO_COUNT < SPI_FIFO_SIZE)
+ {
+ R8_SPI0_FIFO = *pbuf;
+ pbuf++;
+ sendlen--;
+ }
+ }
+ while(R8_SPI0_FIFO_COUNT != 0); // 等待FIFO中的数据全部发送完成
+}
+
+/*********************************************************************
+ * @fn SPI0_SlaveDMARecv
+ *
+ * @brief DMA方式连续接收数据
+ *
+ * @param pbuf - 待接收数据存放起始地址,需要四字节对其
+ * @param len - 待接收数据长度
+ *
+ * @return none
+ */
+void SPI0_SlaveDMARecv(uint8_t *pbuf, uint16_t len)
+{
+ R8_SPI0_CTRL_MOD |= RB_SPI_FIFO_DIR;
+ R16_SPI0_DMA_BEG = (uint32_t)pbuf;
+ R16_SPI0_DMA_END = (uint32_t)(pbuf + len);
+ R16_SPI0_TOTAL_CNT = len;
+ R8_SPI0_INT_FLAG = RB_SPI_IF_CNT_END | RB_SPI_IF_DMA_END;
+ R8_SPI0_CTRL_CFG |= RB_SPI_DMA_ENABLE;
+ while(!(R8_SPI0_INT_FLAG & RB_SPI_IF_CNT_END));
+ R8_SPI0_CTRL_CFG &= ~RB_SPI_DMA_ENABLE;
+}
+
+/*********************************************************************
+ * @fn SPI0_SlaveDMATrans
+ *
+ * @brief DMA方式连续发送数据
+ *
+ * @param pbuf - 待发送数据起始地址,需要四字节对其
+ * @param len - 待发送数据长度
+ *
+ * @return none
+ */
+void SPI0_SlaveDMATrans(uint8_t *pbuf, uint16_t len)
+{
+ R8_SPI0_CTRL_MOD &= ~RB_SPI_FIFO_DIR;
+ R16_SPI0_DMA_BEG = (uint32_t)pbuf;
+ R16_SPI0_DMA_END = (uint32_t)(pbuf + len);
+ R16_SPI0_TOTAL_CNT = len;
+ R8_SPI0_INT_FLAG = RB_SPI_IF_CNT_END | RB_SPI_IF_DMA_END;
+ R8_SPI0_CTRL_CFG |= RB_SPI_DMA_ENABLE;
+ while(!(R8_SPI0_INT_FLAG & RB_SPI_IF_CNT_END));
+ R8_SPI0_CTRL_CFG &= ~RB_SPI_DMA_ENABLE;
+}
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