From 7d7389cac55952fcb794d2632747a8adc1e119ee Mon Sep 17 00:00:00 2001 From: Dien-Nhung Nguyen-Phu Date: Wed, 15 May 2024 12:43:35 +0700 Subject: init blink project generated project from EVT --- .../StdPeriphDriver/CH58x_i2c.c | 672 +++++++++++++++++++++ 1 file changed, 672 insertions(+) create mode 100644 CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_i2c.c (limited to 'CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_i2c.c') diff --git a/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_i2c.c b/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_i2c.c new file mode 100644 index 0000000..48d3355 --- /dev/null +++ b/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_i2c.c @@ -0,0 +1,672 @@ +/********************************** (C) COPYRIGHT ******************************* + * File Name : CH58x_i2c.c + * Author : WCH + * Version : V1.0 + * Date : 2021/03/15 + * 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 I2C_Init + * + * @brief Initializes the I2Cx peripheral according to the specified + * parameters in the I2C_InitStruct. + * + * @param I2C_Mode - refer to I2C_ModeTypeDef + * @param I2C_ClockSpeed - Specifies the clock frequency(Hz). + * This parameter must be set to a value lower than 400kHz + * @param I2C_DutyCycle - Specifies the I2C fast mode duty cycle.refer to I2C_DutyTypeDef + * @param I2C_Ack - Enables or disables the acknowledgement.refer to I2C_AckTypeDef + * @param I2C_AckAddr - Specifies if 7-bit or 10-bit address is acknowledged.refer to I2C_AckAddrTypeDef + * @param I2C_OwnAddress1 - Specifies the first device own address. + * This parameter can be a 7-bit or 10-bit address. + * + * @return none + */ +void I2C_Init(I2C_ModeTypeDef I2C_Mode, UINT32 I2C_ClockSpeed, I2C_DutyTypeDef I2C_DutyCycle, + I2C_AckTypeDef I2C_Ack, I2C_AckAddrTypeDef I2C_AckAddr, UINT16 I2C_OwnAddress1) +{ + uint32_t sysClock; + uint16_t tmpreg; + + I2C_SoftwareResetCmd(ENABLE); + I2C_SoftwareResetCmd(DISABLE); + + sysClock = GetSysClock(); + + R16_I2C_CTRL2 &= ~RB_I2C_FREQ; + R16_I2C_CTRL2 |= (sysClock / 1000000); + + R16_I2C_CTRL1 &= ~RB_I2C_PE; + + if(I2C_ClockSpeed <= 100000) + { + tmpreg = (sysClock / (I2C_ClockSpeed << 1)) & RB_I2C_CCR; + + if(tmpreg < 0x04) + tmpreg = 0x04; + + R16_I2C_RTR = (((sysClock / 1000000) + 1) > 0x3F) ? 0x3F : ((sysClock / 1000000) + 1); + } + else + { + if(I2C_DutyCycle == I2C_DutyCycle_2) + { + tmpreg = (sysClock / (I2C_ClockSpeed * 3)) & RB_I2C_CCR; + } + else + { + tmpreg = (sysClock / (I2C_ClockSpeed * 25)) & RB_I2C_CCR; + tmpreg |= I2C_DutyCycle_16_9; + } + + if(tmpreg == 0) + { + tmpreg |= (uint16_t)0x0001; + } + + tmpreg |= RB_I2C_F_S; + R16_I2C_RTR = (uint16_t)((((sysClock / 1000000) * (uint16_t)300) / (uint16_t)1000) + (uint16_t)1); + } + R16_I2C_CKCFGR = tmpreg; + + R16_I2C_CTRL1 |= RB_I2C_PE; + + R16_I2C_CTRL1 &= ~(RB_I2C_SMBUS | RB_I2C_SMBTYPE | RB_I2C_ACK); + R16_I2C_CTRL1 |= I2C_Mode | I2C_Ack; + + R16_I2C_OADDR1 &= ~0xFFFF; + R16_I2C_OADDR1 |= I2C_AckAddr | I2C_OwnAddress1; +} + +/********************************************************************* + * @fn I2C_Cmd + * + * @brief Enables or disables the specified I2C peripheral. + * + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_Cmd(FunctionalState NewState) +{ + if(NewState != DISABLE) + R16_I2C_CTRL1 |= RB_I2C_PE; + else + R16_I2C_CTRL1 &= ~RB_I2C_PE; +} + +/********************************************************************* + * @fn I2C_GenerateSTART + * + * @brief Generates I2Cx communication START condition. + * + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_GenerateSTART(FunctionalState NewState) +{ + if(NewState != DISABLE) + R16_I2C_CTRL1 |= RB_I2C_START; + else + R16_I2C_CTRL1 &= ~RB_I2C_START; +} + +/********************************************************************* + * @fn I2C_GenerateSTOP + * + * @brief Generates I2Cx communication STOP condition. + * + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_GenerateSTOP(FunctionalState NewState) +{ + if(NewState != DISABLE) + R16_I2C_CTRL1 |= RB_I2C_STOP; + else + R16_I2C_CTRL1 &= ~RB_I2C_STOP; +} + +/********************************************************************* + * @fn I2C_AcknowledgeConfig + * + * @brief Enables or disables the specified I2C acknowledge feature. + * + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_AcknowledgeConfig(FunctionalState NewState) +{ + if(NewState != DISABLE) + R16_I2C_CTRL1 |= RB_I2C_ACK; + else + R16_I2C_CTRL1 &= ~RB_I2C_ACK; +} + +/********************************************************************* + * @fn I2C_OwnAddress2Config + * + * @brief Configures the specified I2C own address2. + * + * @param Address - specifies the 7bit I2C own address2. + * + * @return none + */ +void I2C_OwnAddress2Config(uint8_t Address) +{ + R16_I2C_OADDR2 &= ~RB_I2C_ADD2; + R16_I2C_OADDR2 |= (uint16_t)(Address & RB_I2C_ADD2); +} + +/********************************************************************* + * @fn I2C_DualAddressCmd + * + * @brief Enables or disables the specified I2C dual addressing mode. + * + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_DualAddressCmd(FunctionalState NewState) +{ + if(NewState != DISABLE) + R16_I2C_OADDR2 |= RB_I2C_ENDUAL; + else + R16_I2C_OADDR2 &= ~RB_I2C_ENDUAL; +} + +/********************************************************************* + * @fn I2C_GeneralCallCmd + * + * @brief Enables or disables the specified I2C general call feature. + * + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_GeneralCallCmd(FunctionalState NewState) +{ + if(NewState != DISABLE) + R16_I2C_CTRL1 |= RB_I2C_ENGC; + else + R16_I2C_CTRL1 &= ~RB_I2C_ENGC; +} + +/********************************************************************* + * @fn I2C_ITConfig + * + * @brief Enables or disables the specified I2C interrupts. + * + * @param I2C_IT - specifies the I2C interrupts sources to be enabled or disabled. + * I2C_IT_BUF - Buffer interrupt mask. + * I2C_IT_EVT - Event interrupt mask. + * I2C_IT_ERR - Error interrupt mask. + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_ITConfig(I2C_ITTypeDef I2C_IT, FunctionalState NewState) +{ + if(NewState != DISABLE) + R16_I2C_CTRL2 |= I2C_IT; + else + R16_I2C_CTRL2 &= (uint16_t)~I2C_IT; +} + +/********************************************************************* + * @fn I2C_SendData + * + * @brief Sends a data byte through the I2Cx peripheral. + * + * @param Data - Byte to be transmitted. + * + * @return none + */ +void I2C_SendData(uint8_t Data) +{ + R16_I2C_DATAR = Data; +} + +/********************************************************************* + * @fn I2C_ReceiveData + * + * @brief Returns the most recent received data by the I2Cx peripheral. + * + * @return The value of the received data. + */ +uint8_t I2C_ReceiveData(void) +{ + return (uint8_t)R16_I2C_DATAR; +} + +/********************************************************************* + * @fn I2C_Send7bitAddress + * + * @brief Transmits the address byte to select the slave device. + * + * @param Address - specifies the slave address which will be transmitted. + * @param I2C_Direction - specifies whether the I2C device will be a Transmitter or a Receiver. + * I2C_Direction_Transmitter - Transmitter mode. + * I2C_Direction_Receiver - Receiver mode. + * + * @return none + */ +void I2C_Send7bitAddress(uint8_t Address, uint8_t I2C_Direction) +{ + if(I2C_Direction != I2C_Direction_Transmitter) + Address |= OADDR1_ADD0_Set; + else + Address &= OADDR1_ADD0_Reset; + + R16_I2C_DATAR = Address; +} + +/********************************************************************* + * @fn I2C_SoftwareResetCmd + * + * @brief Enables or disables the specified I2C software reset. + * + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_SoftwareResetCmd(FunctionalState NewState) +{ + if(NewState != DISABLE) + R16_I2C_CTRL1 |= RB_I2C_SWRST; + else + R16_I2C_CTRL1 &= ~RB_I2C_SWRST; +} + +/********************************************************************* + * @fn I2C_NACKPositionConfig + * + * @brief Selects the specified I2C NACK position in master receiver mode. + * + * @param I2C_NACKPosition - specifies the NACK position. + * I2C_NACKPosition_Next - indicates that the next byte will be the last received byte. + * I2C_NACKPosition_Current - indicates that current byte is the last received byte. + * + * @return none + */ +void I2C_NACKPositionConfig(uint16_t I2C_NACKPosition) +{ + if(I2C_NACKPosition == I2C_NACKPosition_Next) + R16_I2C_CTRL1 |= I2C_NACKPosition_Next; + else + R16_I2C_CTRL1 &= I2C_NACKPosition_Current; +} + +/********************************************************************* + * @fn I2C_SMBusAlertConfig + * + * @brief Drives the SMBusAlert pin high or low for the specified I2C. + * + * @param I2C_SMBusAlert - specifies SMBAlert pin level. + * I2C_SMBusAlert_Low - SMBAlert pin driven low. + * I2C_SMBusAlert_High - SMBAlert pin driven high. + * + * @return none + */ +void I2C_SMBusAlertConfig(uint16_t I2C_SMBusAlert) +{ + if(I2C_SMBusAlert == I2C_SMBusAlert_Low) + R16_I2C_CTRL1 |= I2C_SMBusAlert_Low; + else + R16_I2C_CTRL1 &= I2C_SMBusAlert_High; +} + +/********************************************************************* + * @fn I2C_TransmitPEC + * + * @brief Enables or disables the specified I2C PEC transfer. + * + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_TransmitPEC(FunctionalState NewState) +{ + if(NewState != DISABLE) + R16_I2C_CTRL1 |= RB_I2C_PEC; + else + R16_I2C_CTRL1 &= ~RB_I2C_PEC; +} + +/********************************************************************* + * @fn I2C_PECPositionConfig + * + * @brief Selects the specified I2C PEC position. + * + * @param I2C_PECPosition - specifies the PEC position. + * I2C_PECPosition_Next - indicates that the next byte is PEC. + * I2C_PECPosition_Current - indicates that current byte is PEC. + * + * @return none + */ +void I2C_PECPositionConfig(uint16_t I2C_PECPosition) +{ + if(I2C_PECPosition == I2C_PECPosition_Next) + R16_I2C_CTRL1 |= I2C_PECPosition_Next; + else + R16_I2C_CTRL1 &= I2C_PECPosition_Current; +} + +/********************************************************************* + * @fn I2C_CalculatePEC + * + * @brief Enables or disables the PEC value calculation of the transferred bytes. + * + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_CalculatePEC(FunctionalState NewState) +{ + if(NewState != DISABLE) + R16_I2C_CTRL1 |= RB_I2C_ENPEC; + else + R16_I2C_CTRL1 &= ~RB_I2C_ENPEC; +} + +/********************************************************************* + * @fn I2C_GetPEC + * + * @brief Returns the PEC value for the specified I2C. + * + * @return The PEC value. + */ +uint8_t I2C_GetPEC(void) +{ + return (R16_I2C_STAR2 >> 8); +} + +/********************************************************************* + * @fn I2C_ARPCmd + * + * @brief Enables or disables the specified I2C ARP. + * + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_ARPCmd(FunctionalState NewState) +{ + if(NewState != DISABLE) + R16_I2C_CTRL1 |= RB_I2C_EBARP; + else + R16_I2C_CTRL1 &= ~RB_I2C_EBARP; +} + +/********************************************************************* + * @fn I2C_StretchClockCmd + * + * @brief Enables or disables the specified I2C Clock stretching. + * + * @param NewState - ENABLE or DISABLE. + * + * @return none + */ +void I2C_StretchClockCmd(FunctionalState NewState) +{ + if(NewState == DISABLE) + R16_I2C_CTRL1 |= RB_I2C_NOSTRETCH; + else + R16_I2C_CTRL1 &= ~RB_I2C_NOSTRETCH; +} + +/********************************************************************* + * @fn I2C_FastModeDutyCycleConfig + * + * @brief Selects the specified I2C fast mode duty cycle. + * + * @param I2C_DutyCycle - specifies the fast mode duty cycle. + * I2C_DutyCycle_2 - I2C fast mode Tlow/Thigh = 2. + * I2C_DutyCycle_16_9 - I2C fast mode Tlow/Thigh = 16/9. + * + * @return none + */ +void I2C_FastModeDutyCycleConfig(uint16_t I2C_DutyCycle) +{ + if(I2C_DutyCycle != I2C_DutyCycle_16_9) + R16_I2C_CKCFGR &= ~I2C_DutyCycle_16_9; + else + R16_I2C_CKCFGR |= I2C_DutyCycle_16_9; +} + +/********************************************************************* + * @fn I2C_CheckEvent + * + * @brief Checks whether the last I2Cx Event is equal to the one passed as parameter. + * + * @param I2C_EVENT - specifies the event to be checked. + * I2C_EVENT_SLAVE_TRANSMITTER_ADDRESS_MATCHED : EV1. + * I2C_EVENT_SLAVE_RECEIVER_ADDRESS_MATCHED : EV1. + * I2C_EVENT_SLAVE_TRANSMITTER_SECONDADDRESS_MATCHED : EV1. + * I2C_EVENT_SLAVE_RECEIVER_SECONDADDRESS_MATCHED : EV1. + * I2C_EVENT_SLAVE_GENERALCALLADDRESS_MATCHED : EV1. + * I2C_EVENT_SLAVE_BYTE_RECEIVED : EV2. + * (I2C_EVENT_SLAVE_BYTE_RECEIVED | I2C_FLAG_DUALF) : EV2. + * (I2C_EVENT_SLAVE_BYTE_RECEIVED | I2C_FLAG_GENCALL) : EV2. + * I2C_EVENT_SLAVE_BYTE_TRANSMITTED : EV3. + * (I2C_EVENT_SLAVE_BYTE_TRANSMITTED | I2C_FLAG_DUALF) : EV3. + * (I2C_EVENT_SLAVE_BYTE_TRANSMITTED | I2C_FLAG_GENCALL) : EV3. + * I2C_EVENT_SLAVE_ACK_FAILURE : EV3_2. + * I2C_EVENT_SLAVE_STOP_DETECTED : EV4. + * I2C_EVENT_MASTER_MODE_SELECT : EV5. + * I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED : EV6. + * I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED : EV6. + * I2C_EVENT_MASTER_BYTE_RECEIVED : EV7. + * I2C_EVENT_MASTER_BYTE_TRANSMITTING : EV8. + * I2C_EVENT_MASTER_BYTE_TRANSMITTED : EV8_2. + * I2C_EVENT_MASTER_MODE_ADDRESS10 : EV9. + * + * @return 1 - SUCCESS or 0 - ERROR. + */ +uint8_t I2C_CheckEvent(uint32_t I2C_EVENT) +{ + uint32_t lastevent = 0; + uint32_t flag1 = 0, flag2 = 0; + uint8_t status = 0; + + flag1 = R16_I2C_STAR1; + flag2 = R16_I2C_STAR2; + flag2 = flag2 << 16; + + lastevent = (flag1 | flag2) & FLAG_Mask; + + if((lastevent & I2C_EVENT) == I2C_EVENT) + { + status = !0; + } + else + { + status = 0; + } + + return status; +} + +/********************************************************************* + * @fn I2C_GetLastEvent + * + * @brief Returns the last I2Cx Event. + * + * @return The last event. + */ +uint32_t I2C_GetLastEvent(void) +{ + uint32_t lastevent = 0; + uint32_t flag1 = 0, flag2 = 0; + + flag1 = R16_I2C_STAR1; + flag2 = R16_I2C_STAR2; + flag2 = flag2 << 16; + lastevent = (flag1 | flag2) & FLAG_Mask; + + return lastevent; +} + +/********************************************************************* + * @fn I2C_GetFlagStatus + * + * @brief Checks whether the last I2Cx Event is equal to the one passed as parameter. + * + * @param I2C_FLAG - specifies the flag to check. + * I2C_FLAG_DUALF - Dual flag (Slave mode). + * I2C_FLAG_SMBHOST - SMBus host header (Slave mode). + * I2C_FLAG_SMBDEFAULT - SMBus default header (Slave mode). + * I2C_FLAG_GENCALL - General call header flag (Slave mode). + * I2C_FLAG_TRA - Transmitter/Receiver flag. + * I2C_FLAG_BUSY - Bus busy flag. + * I2C_FLAG_MSL - Master/Slave flag. + * I2C_FLAG_SMBALERT - SMBus Alert flag. + * I2C_FLAG_TIMEOUT - Timeout or Tlow error flag. + * I2C_FLAG_PECERR - PEC error in reception flag. + * I2C_FLAG_OVR - Overrun/Underrun flag (Slave mode). + * I2C_FLAG_AF - Acknowledge failure flag. + * I2C_FLAG_ARLO - Arbitration lost flag (Master mode). + * I2C_FLAG_BERR - Bus error flag. + * I2C_FLAG_TXE - Data register empty flag (Transmitter). + * I2C_FLAG_RXNE - Data register not empty (Receiver) flag. + * I2C_FLAG_STOPF - Stop detection flag (Slave mode). + * I2C_FLAG_ADD10 - 10-bit header sent flag (Master mode). + * I2C_FLAG_BTF - Byte transfer finished flag. + * I2C_FLAG_ADDR - Address sent flag (Master mode) "ADSL" + * Address matched flag (Slave mode)"ENDA". + * I2C_FLAG_SB - Start bit flag (Master mode). + * + * @return FlagStatus - SET or RESET. + */ +FlagStatus I2C_GetFlagStatus(uint32_t I2C_FLAG) +{ + FlagStatus bitstatus = RESET; + __IO uint32_t i2creg = 0, i2cxbase = 0; + + i2cxbase = (uint32_t)BA_I2C; + i2creg = I2C_FLAG >> 28; + I2C_FLAG &= FLAG_Mask; + + if(i2creg != 0) + { + i2cxbase += 0x14; + } + else + { + I2C_FLAG = (uint32_t)(I2C_FLAG >> 16); + i2cxbase += 0x18; + } + + if(((*(__IO uint32_t *)i2cxbase) & I2C_FLAG) != (uint32_t)RESET) + { + bitstatus = SET; + } + else + { + bitstatus = RESET; + } + + return bitstatus; +} + +/********************************************************************* + * @fn I2C_ClearFlag + * + * @brief Clears the I2Cx's pending flags. + * + * @param I2C_FLAG - specifies the flag to clear. + * I2C_FLAG_SMBALERT - SMBus Alert flag. + * I2C_FLAG_TIMEOUT - Timeout or Tlow error flag. + * I2C_FLAG_PECERR - PEC error in reception flag. + * I2C_FLAG_OVR - Overrun/Underrun flag (Slave mode). + * I2C_FLAG_AF - Acknowledge failure flag. + * I2C_FLAG_ARLO - Arbitration lost flag (Master mode). + * I2C_FLAG_BERR - Bus error flag. + * + * @return none + */ +void I2C_ClearFlag(uint32_t I2C_FLAG) +{ + uint32_t flagpos = 0; + + flagpos = I2C_FLAG & FLAG_Mask; + R16_I2C_STAR1 = (uint16_t)~flagpos; +} + +/********************************************************************* + * @fn I2C_GetITStatus + * + * @brief Checks whether the specified I2C interrupt has occurred or not. + * + * @param II2C_IT - specifies the interrupt source to check. + * I2C_FLAG_SMBALERT - SMBus Alert flag. + * I2C_FLAG_TIMEOUT - Timeout or Tlow error flag. + * I2C_FLAG_PECERR - PEC error in reception flag. + * I2C_FLAG_OVR - Overrun/Underrun flag (Slave mode). + * I2C_FLAG_AF - Acknowledge failure flag. + * I2C_FLAG_ARLO - Arbitration lost flag (Master mode). + * I2C_FLAG_BERR - Bus error flag. + * I2C_FLAG_TXE - Data register empty flag (Transmitter). + * I2C_FLAG_RXNE - Data register not empty (Receiver) flag. + * I2C_FLAG_STOPF - Stop detection flag (Slave mode). + * I2C_FLAG_ADD10 - 10-bit header sent flag (Master mode). + * I2C_FLAG_BTF - Byte transfer finished flag. + * I2C_FLAG_ADDR - Address sent flag (Master mode) "ADSL" + * Address matched flag (Slave mode)"ENDA". + * I2C_FLAG_SB - Start bit flag (Master mode). + * + * @return none + */ +ITStatus I2C_GetITStatus(uint32_t I2C_IT) +{ + ITStatus bitstatus = RESET; + uint32_t enablestatus = 0; + + enablestatus = (uint32_t)(((I2C_IT & ITEN_Mask) >> 16) & (R16_I2C_CTRL2)); + I2C_IT &= FLAG_Mask; + + if(((R16_I2C_STAR1 & I2C_IT) != (uint32_t)RESET) && enablestatus) + { + bitstatus = SET; + } + else + { + bitstatus = RESET; + } + + return bitstatus; +} + +/********************************************************************* + * @fn I2C_ClearITPendingBit + * + * @brief Clears the I2Cx interrupt pending bits. + * + * @param I2C_IT - specifies the interrupt pending bit to clear. + * I2C_IT_SMBALERT - SMBus Alert interrupt. + * I2C_IT_TIMEOUT - Timeout or Tlow error interrupt. + * I2C_IT_PECERR - PEC error in reception interrupt. + * I2C_IT_OVR - Overrun/Underrun interrupt (Slave mode). + * I2C_IT_AF - Acknowledge failure interrupt. + * I2C_IT_ARLO - Arbitration lost interrupt (Master mode). + * I2C_IT_BERR - Bus error interrupt. + * + * @return none + */ +void I2C_ClearITPendingBit(uint32_t I2C_IT) +{ + uint32_t flagpos = 0; + + flagpos = I2C_IT & FLAG_Mask; + R16_I2C_STAR1 = (uint16_t)~flagpos; +} -- cgit v1.2.3