mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_NUCLEO_F103RB/stm32f10x_cec.c@52:a51c77007319, 2013-12-02 (annotated)
- Committer:
- mbed_official
- Date:
- Mon Dec 02 11:30:05 2013 +0000
- Revision:
- 52:a51c77007319
- Child:
- 70:c1fbde68b492
Synchronized with git revision 49df530ae72ce97ccc773d1f2c13b38e868e6abd
Full URL: https://github.com/mbedmicro/mbed/commit/49df530ae72ce97ccc773d1f2c13b38e868e6abd/
Add STMicroelectronics NUCLEO_F103RB target
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 52:a51c77007319 | 1 | /** |
mbed_official | 52:a51c77007319 | 2 | ****************************************************************************** |
mbed_official | 52:a51c77007319 | 3 | * @file stm32f10x_cec.c |
mbed_official | 52:a51c77007319 | 4 | * @author MCD Application Team |
mbed_official | 52:a51c77007319 | 5 | * @version V3.5.0 |
mbed_official | 52:a51c77007319 | 6 | * @date 11-March-2011 |
mbed_official | 52:a51c77007319 | 7 | * @brief This file provides all the CEC firmware functions. |
mbed_official | 52:a51c77007319 | 8 | ****************************************************************************** |
mbed_official | 52:a51c77007319 | 9 | * @attention |
mbed_official | 52:a51c77007319 | 10 | * |
mbed_official | 52:a51c77007319 | 11 | * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS |
mbed_official | 52:a51c77007319 | 12 | * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE |
mbed_official | 52:a51c77007319 | 13 | * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY |
mbed_official | 52:a51c77007319 | 14 | * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING |
mbed_official | 52:a51c77007319 | 15 | * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE |
mbed_official | 52:a51c77007319 | 16 | * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. |
mbed_official | 52:a51c77007319 | 17 | * |
mbed_official | 52:a51c77007319 | 18 | * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2> |
mbed_official | 52:a51c77007319 | 19 | ****************************************************************************** |
mbed_official | 52:a51c77007319 | 20 | */ |
mbed_official | 52:a51c77007319 | 21 | |
mbed_official | 52:a51c77007319 | 22 | /* Includes ------------------------------------------------------------------*/ |
mbed_official | 52:a51c77007319 | 23 | #include "stm32f10x_cec.h" |
mbed_official | 52:a51c77007319 | 24 | #include "stm32f10x_rcc.h" |
mbed_official | 52:a51c77007319 | 25 | |
mbed_official | 52:a51c77007319 | 26 | /** @addtogroup STM32F10x_StdPeriph_Driver |
mbed_official | 52:a51c77007319 | 27 | * @{ |
mbed_official | 52:a51c77007319 | 28 | */ |
mbed_official | 52:a51c77007319 | 29 | |
mbed_official | 52:a51c77007319 | 30 | /** @defgroup CEC |
mbed_official | 52:a51c77007319 | 31 | * @brief CEC driver modules |
mbed_official | 52:a51c77007319 | 32 | * @{ |
mbed_official | 52:a51c77007319 | 33 | */ |
mbed_official | 52:a51c77007319 | 34 | |
mbed_official | 52:a51c77007319 | 35 | /** @defgroup CEC_Private_TypesDefinitions |
mbed_official | 52:a51c77007319 | 36 | * @{ |
mbed_official | 52:a51c77007319 | 37 | */ |
mbed_official | 52:a51c77007319 | 38 | |
mbed_official | 52:a51c77007319 | 39 | /** |
mbed_official | 52:a51c77007319 | 40 | * @} |
mbed_official | 52:a51c77007319 | 41 | */ |
mbed_official | 52:a51c77007319 | 42 | |
mbed_official | 52:a51c77007319 | 43 | |
mbed_official | 52:a51c77007319 | 44 | /** @defgroup CEC_Private_Defines |
mbed_official | 52:a51c77007319 | 45 | * @{ |
mbed_official | 52:a51c77007319 | 46 | */ |
mbed_official | 52:a51c77007319 | 47 | |
mbed_official | 52:a51c77007319 | 48 | /* ------------ CEC registers bit address in the alias region ----------- */ |
mbed_official | 52:a51c77007319 | 49 | #define CEC_OFFSET (CEC_BASE - PERIPH_BASE) |
mbed_official | 52:a51c77007319 | 50 | |
mbed_official | 52:a51c77007319 | 51 | /* --- CFGR Register ---*/ |
mbed_official | 52:a51c77007319 | 52 | |
mbed_official | 52:a51c77007319 | 53 | /* Alias word address of PE bit */ |
mbed_official | 52:a51c77007319 | 54 | #define CFGR_OFFSET (CEC_OFFSET + 0x00) |
mbed_official | 52:a51c77007319 | 55 | #define PE_BitNumber 0x00 |
mbed_official | 52:a51c77007319 | 56 | #define CFGR_PE_BB (PERIPH_BB_BASE + (CFGR_OFFSET * 32) + (PE_BitNumber * 4)) |
mbed_official | 52:a51c77007319 | 57 | |
mbed_official | 52:a51c77007319 | 58 | /* Alias word address of IE bit */ |
mbed_official | 52:a51c77007319 | 59 | #define IE_BitNumber 0x01 |
mbed_official | 52:a51c77007319 | 60 | #define CFGR_IE_BB (PERIPH_BB_BASE + (CFGR_OFFSET * 32) + (IE_BitNumber * 4)) |
mbed_official | 52:a51c77007319 | 61 | |
mbed_official | 52:a51c77007319 | 62 | /* --- CSR Register ---*/ |
mbed_official | 52:a51c77007319 | 63 | |
mbed_official | 52:a51c77007319 | 64 | /* Alias word address of TSOM bit */ |
mbed_official | 52:a51c77007319 | 65 | #define CSR_OFFSET (CEC_OFFSET + 0x10) |
mbed_official | 52:a51c77007319 | 66 | #define TSOM_BitNumber 0x00 |
mbed_official | 52:a51c77007319 | 67 | #define CSR_TSOM_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TSOM_BitNumber * 4)) |
mbed_official | 52:a51c77007319 | 68 | |
mbed_official | 52:a51c77007319 | 69 | /* Alias word address of TEOM bit */ |
mbed_official | 52:a51c77007319 | 70 | #define TEOM_BitNumber 0x01 |
mbed_official | 52:a51c77007319 | 71 | #define CSR_TEOM_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (TEOM_BitNumber * 4)) |
mbed_official | 52:a51c77007319 | 72 | |
mbed_official | 52:a51c77007319 | 73 | #define CFGR_CLEAR_Mask (uint8_t)(0xF3) /* CFGR register Mask */ |
mbed_official | 52:a51c77007319 | 74 | #define FLAG_Mask ((uint32_t)0x00FFFFFF) /* CEC FLAG mask */ |
mbed_official | 52:a51c77007319 | 75 | |
mbed_official | 52:a51c77007319 | 76 | /** |
mbed_official | 52:a51c77007319 | 77 | * @} |
mbed_official | 52:a51c77007319 | 78 | */ |
mbed_official | 52:a51c77007319 | 79 | |
mbed_official | 52:a51c77007319 | 80 | |
mbed_official | 52:a51c77007319 | 81 | /** @defgroup CEC_Private_Macros |
mbed_official | 52:a51c77007319 | 82 | * @{ |
mbed_official | 52:a51c77007319 | 83 | */ |
mbed_official | 52:a51c77007319 | 84 | |
mbed_official | 52:a51c77007319 | 85 | /** |
mbed_official | 52:a51c77007319 | 86 | * @} |
mbed_official | 52:a51c77007319 | 87 | */ |
mbed_official | 52:a51c77007319 | 88 | |
mbed_official | 52:a51c77007319 | 89 | |
mbed_official | 52:a51c77007319 | 90 | /** @defgroup CEC_Private_Variables |
mbed_official | 52:a51c77007319 | 91 | * @{ |
mbed_official | 52:a51c77007319 | 92 | */ |
mbed_official | 52:a51c77007319 | 93 | |
mbed_official | 52:a51c77007319 | 94 | /** |
mbed_official | 52:a51c77007319 | 95 | * @} |
mbed_official | 52:a51c77007319 | 96 | */ |
mbed_official | 52:a51c77007319 | 97 | |
mbed_official | 52:a51c77007319 | 98 | |
mbed_official | 52:a51c77007319 | 99 | /** @defgroup CEC_Private_FunctionPrototypes |
mbed_official | 52:a51c77007319 | 100 | * @{ |
mbed_official | 52:a51c77007319 | 101 | */ |
mbed_official | 52:a51c77007319 | 102 | |
mbed_official | 52:a51c77007319 | 103 | /** |
mbed_official | 52:a51c77007319 | 104 | * @} |
mbed_official | 52:a51c77007319 | 105 | */ |
mbed_official | 52:a51c77007319 | 106 | |
mbed_official | 52:a51c77007319 | 107 | |
mbed_official | 52:a51c77007319 | 108 | /** @defgroup CEC_Private_Functions |
mbed_official | 52:a51c77007319 | 109 | * @{ |
mbed_official | 52:a51c77007319 | 110 | */ |
mbed_official | 52:a51c77007319 | 111 | |
mbed_official | 52:a51c77007319 | 112 | /** |
mbed_official | 52:a51c77007319 | 113 | * @brief Deinitializes the CEC peripheral registers to their default reset |
mbed_official | 52:a51c77007319 | 114 | * values. |
mbed_official | 52:a51c77007319 | 115 | * @param None |
mbed_official | 52:a51c77007319 | 116 | * @retval None |
mbed_official | 52:a51c77007319 | 117 | */ |
mbed_official | 52:a51c77007319 | 118 | void CEC_DeInit(void) |
mbed_official | 52:a51c77007319 | 119 | { |
mbed_official | 52:a51c77007319 | 120 | /* Enable CEC reset state */ |
mbed_official | 52:a51c77007319 | 121 | RCC_APB1PeriphResetCmd(RCC_APB1Periph_CEC, ENABLE); |
mbed_official | 52:a51c77007319 | 122 | /* Release CEC from reset state */ |
mbed_official | 52:a51c77007319 | 123 | RCC_APB1PeriphResetCmd(RCC_APB1Periph_CEC, DISABLE); |
mbed_official | 52:a51c77007319 | 124 | } |
mbed_official | 52:a51c77007319 | 125 | |
mbed_official | 52:a51c77007319 | 126 | |
mbed_official | 52:a51c77007319 | 127 | /** |
mbed_official | 52:a51c77007319 | 128 | * @brief Initializes the CEC peripheral according to the specified |
mbed_official | 52:a51c77007319 | 129 | * parameters in the CEC_InitStruct. |
mbed_official | 52:a51c77007319 | 130 | * @param CEC_InitStruct: pointer to an CEC_InitTypeDef structure that |
mbed_official | 52:a51c77007319 | 131 | * contains the configuration information for the specified |
mbed_official | 52:a51c77007319 | 132 | * CEC peripheral. |
mbed_official | 52:a51c77007319 | 133 | * @retval None |
mbed_official | 52:a51c77007319 | 134 | */ |
mbed_official | 52:a51c77007319 | 135 | void CEC_Init(CEC_InitTypeDef* CEC_InitStruct) |
mbed_official | 52:a51c77007319 | 136 | { |
mbed_official | 52:a51c77007319 | 137 | uint16_t tmpreg = 0; |
mbed_official | 52:a51c77007319 | 138 | |
mbed_official | 52:a51c77007319 | 139 | /* Check the parameters */ |
mbed_official | 52:a51c77007319 | 140 | assert_param(IS_CEC_BIT_TIMING_ERROR_MODE(CEC_InitStruct->CEC_BitTimingMode)); |
mbed_official | 52:a51c77007319 | 141 | assert_param(IS_CEC_BIT_PERIOD_ERROR_MODE(CEC_InitStruct->CEC_BitPeriodMode)); |
mbed_official | 52:a51c77007319 | 142 | |
mbed_official | 52:a51c77007319 | 143 | /*---------------------------- CEC CFGR Configuration -----------------*/ |
mbed_official | 52:a51c77007319 | 144 | /* Get the CEC CFGR value */ |
mbed_official | 52:a51c77007319 | 145 | tmpreg = CEC->CFGR; |
mbed_official | 52:a51c77007319 | 146 | |
mbed_official | 52:a51c77007319 | 147 | /* Clear BTEM and BPEM bits */ |
mbed_official | 52:a51c77007319 | 148 | tmpreg &= CFGR_CLEAR_Mask; |
mbed_official | 52:a51c77007319 | 149 | |
mbed_official | 52:a51c77007319 | 150 | /* Configure CEC: Bit Timing Error and Bit Period Error */ |
mbed_official | 52:a51c77007319 | 151 | tmpreg |= (uint16_t)(CEC_InitStruct->CEC_BitTimingMode | CEC_InitStruct->CEC_BitPeriodMode); |
mbed_official | 52:a51c77007319 | 152 | |
mbed_official | 52:a51c77007319 | 153 | /* Write to CEC CFGR register*/ |
mbed_official | 52:a51c77007319 | 154 | CEC->CFGR = tmpreg; |
mbed_official | 52:a51c77007319 | 155 | |
mbed_official | 52:a51c77007319 | 156 | } |
mbed_official | 52:a51c77007319 | 157 | |
mbed_official | 52:a51c77007319 | 158 | /** |
mbed_official | 52:a51c77007319 | 159 | * @brief Enables or disables the specified CEC peripheral. |
mbed_official | 52:a51c77007319 | 160 | * @param NewState: new state of the CEC peripheral. |
mbed_official | 52:a51c77007319 | 161 | * This parameter can be: ENABLE or DISABLE. |
mbed_official | 52:a51c77007319 | 162 | * @retval None |
mbed_official | 52:a51c77007319 | 163 | */ |
mbed_official | 52:a51c77007319 | 164 | void CEC_Cmd(FunctionalState NewState) |
mbed_official | 52:a51c77007319 | 165 | { |
mbed_official | 52:a51c77007319 | 166 | /* Check the parameters */ |
mbed_official | 52:a51c77007319 | 167 | assert_param(IS_FUNCTIONAL_STATE(NewState)); |
mbed_official | 52:a51c77007319 | 168 | |
mbed_official | 52:a51c77007319 | 169 | *(__IO uint32_t *) CFGR_PE_BB = (uint32_t)NewState; |
mbed_official | 52:a51c77007319 | 170 | |
mbed_official | 52:a51c77007319 | 171 | if(NewState == DISABLE) |
mbed_official | 52:a51c77007319 | 172 | { |
mbed_official | 52:a51c77007319 | 173 | /* Wait until the PE bit is cleared by hardware (Idle Line detected) */ |
mbed_official | 52:a51c77007319 | 174 | while((CEC->CFGR & CEC_CFGR_PE) != (uint32_t)RESET) |
mbed_official | 52:a51c77007319 | 175 | { |
mbed_official | 52:a51c77007319 | 176 | } |
mbed_official | 52:a51c77007319 | 177 | } |
mbed_official | 52:a51c77007319 | 178 | } |
mbed_official | 52:a51c77007319 | 179 | |
mbed_official | 52:a51c77007319 | 180 | /** |
mbed_official | 52:a51c77007319 | 181 | * @brief Enables or disables the CEC interrupt. |
mbed_official | 52:a51c77007319 | 182 | * @param NewState: new state of the CEC interrupt. |
mbed_official | 52:a51c77007319 | 183 | * This parameter can be: ENABLE or DISABLE. |
mbed_official | 52:a51c77007319 | 184 | * @retval None |
mbed_official | 52:a51c77007319 | 185 | */ |
mbed_official | 52:a51c77007319 | 186 | void CEC_ITConfig(FunctionalState NewState) |
mbed_official | 52:a51c77007319 | 187 | { |
mbed_official | 52:a51c77007319 | 188 | /* Check the parameters */ |
mbed_official | 52:a51c77007319 | 189 | assert_param(IS_FUNCTIONAL_STATE(NewState)); |
mbed_official | 52:a51c77007319 | 190 | |
mbed_official | 52:a51c77007319 | 191 | *(__IO uint32_t *) CFGR_IE_BB = (uint32_t)NewState; |
mbed_official | 52:a51c77007319 | 192 | } |
mbed_official | 52:a51c77007319 | 193 | |
mbed_official | 52:a51c77007319 | 194 | /** |
mbed_official | 52:a51c77007319 | 195 | * @brief Defines the Own Address of the CEC device. |
mbed_official | 52:a51c77007319 | 196 | * @param CEC_OwnAddress: The CEC own address |
mbed_official | 52:a51c77007319 | 197 | * @retval None |
mbed_official | 52:a51c77007319 | 198 | */ |
mbed_official | 52:a51c77007319 | 199 | void CEC_OwnAddressConfig(uint8_t CEC_OwnAddress) |
mbed_official | 52:a51c77007319 | 200 | { |
mbed_official | 52:a51c77007319 | 201 | /* Check the parameters */ |
mbed_official | 52:a51c77007319 | 202 | assert_param(IS_CEC_ADDRESS(CEC_OwnAddress)); |
mbed_official | 52:a51c77007319 | 203 | |
mbed_official | 52:a51c77007319 | 204 | /* Set the CEC own address */ |
mbed_official | 52:a51c77007319 | 205 | CEC->OAR = CEC_OwnAddress; |
mbed_official | 52:a51c77007319 | 206 | } |
mbed_official | 52:a51c77007319 | 207 | |
mbed_official | 52:a51c77007319 | 208 | /** |
mbed_official | 52:a51c77007319 | 209 | * @brief Sets the CEC prescaler value. |
mbed_official | 52:a51c77007319 | 210 | * @param CEC_Prescaler: CEC prescaler new value |
mbed_official | 52:a51c77007319 | 211 | * @retval None |
mbed_official | 52:a51c77007319 | 212 | */ |
mbed_official | 52:a51c77007319 | 213 | void CEC_SetPrescaler(uint16_t CEC_Prescaler) |
mbed_official | 52:a51c77007319 | 214 | { |
mbed_official | 52:a51c77007319 | 215 | /* Check the parameters */ |
mbed_official | 52:a51c77007319 | 216 | assert_param(IS_CEC_PRESCALER(CEC_Prescaler)); |
mbed_official | 52:a51c77007319 | 217 | |
mbed_official | 52:a51c77007319 | 218 | /* Set the Prescaler value*/ |
mbed_official | 52:a51c77007319 | 219 | CEC->PRES = CEC_Prescaler; |
mbed_official | 52:a51c77007319 | 220 | } |
mbed_official | 52:a51c77007319 | 221 | |
mbed_official | 52:a51c77007319 | 222 | /** |
mbed_official | 52:a51c77007319 | 223 | * @brief Transmits single data through the CEC peripheral. |
mbed_official | 52:a51c77007319 | 224 | * @param Data: the data to transmit. |
mbed_official | 52:a51c77007319 | 225 | * @retval None |
mbed_official | 52:a51c77007319 | 226 | */ |
mbed_official | 52:a51c77007319 | 227 | void CEC_SendDataByte(uint8_t Data) |
mbed_official | 52:a51c77007319 | 228 | { |
mbed_official | 52:a51c77007319 | 229 | /* Transmit Data */ |
mbed_official | 52:a51c77007319 | 230 | CEC->TXD = Data ; |
mbed_official | 52:a51c77007319 | 231 | } |
mbed_official | 52:a51c77007319 | 232 | |
mbed_official | 52:a51c77007319 | 233 | |
mbed_official | 52:a51c77007319 | 234 | /** |
mbed_official | 52:a51c77007319 | 235 | * @brief Returns the most recent received data by the CEC peripheral. |
mbed_official | 52:a51c77007319 | 236 | * @param None |
mbed_official | 52:a51c77007319 | 237 | * @retval The received data. |
mbed_official | 52:a51c77007319 | 238 | */ |
mbed_official | 52:a51c77007319 | 239 | uint8_t CEC_ReceiveDataByte(void) |
mbed_official | 52:a51c77007319 | 240 | { |
mbed_official | 52:a51c77007319 | 241 | /* Receive Data */ |
mbed_official | 52:a51c77007319 | 242 | return (uint8_t)(CEC->RXD); |
mbed_official | 52:a51c77007319 | 243 | } |
mbed_official | 52:a51c77007319 | 244 | |
mbed_official | 52:a51c77007319 | 245 | /** |
mbed_official | 52:a51c77007319 | 246 | * @brief Starts a new message. |
mbed_official | 52:a51c77007319 | 247 | * @param None |
mbed_official | 52:a51c77007319 | 248 | * @retval None |
mbed_official | 52:a51c77007319 | 249 | */ |
mbed_official | 52:a51c77007319 | 250 | void CEC_StartOfMessage(void) |
mbed_official | 52:a51c77007319 | 251 | { |
mbed_official | 52:a51c77007319 | 252 | /* Starts of new message */ |
mbed_official | 52:a51c77007319 | 253 | *(__IO uint32_t *) CSR_TSOM_BB = (uint32_t)0x1; |
mbed_official | 52:a51c77007319 | 254 | } |
mbed_official | 52:a51c77007319 | 255 | |
mbed_official | 52:a51c77007319 | 256 | /** |
mbed_official | 52:a51c77007319 | 257 | * @brief Transmits message with or without an EOM bit. |
mbed_official | 52:a51c77007319 | 258 | * @param NewState: new state of the CEC Tx End Of Message. |
mbed_official | 52:a51c77007319 | 259 | * This parameter can be: ENABLE or DISABLE. |
mbed_official | 52:a51c77007319 | 260 | * @retval None |
mbed_official | 52:a51c77007319 | 261 | */ |
mbed_official | 52:a51c77007319 | 262 | void CEC_EndOfMessageCmd(FunctionalState NewState) |
mbed_official | 52:a51c77007319 | 263 | { |
mbed_official | 52:a51c77007319 | 264 | /* Check the parameters */ |
mbed_official | 52:a51c77007319 | 265 | assert_param(IS_FUNCTIONAL_STATE(NewState)); |
mbed_official | 52:a51c77007319 | 266 | |
mbed_official | 52:a51c77007319 | 267 | /* The data byte will be transmitted with or without an EOM bit*/ |
mbed_official | 52:a51c77007319 | 268 | *(__IO uint32_t *) CSR_TEOM_BB = (uint32_t)NewState; |
mbed_official | 52:a51c77007319 | 269 | } |
mbed_official | 52:a51c77007319 | 270 | |
mbed_official | 52:a51c77007319 | 271 | /** |
mbed_official | 52:a51c77007319 | 272 | * @brief Gets the CEC flag status |
mbed_official | 52:a51c77007319 | 273 | * @param CEC_FLAG: specifies the CEC flag to check. |
mbed_official | 52:a51c77007319 | 274 | * This parameter can be one of the following values: |
mbed_official | 52:a51c77007319 | 275 | * @arg CEC_FLAG_BTE: Bit Timing Error |
mbed_official | 52:a51c77007319 | 276 | * @arg CEC_FLAG_BPE: Bit Period Error |
mbed_official | 52:a51c77007319 | 277 | * @arg CEC_FLAG_RBTFE: Rx Block Transfer Finished Error |
mbed_official | 52:a51c77007319 | 278 | * @arg CEC_FLAG_SBE: Start Bit Error |
mbed_official | 52:a51c77007319 | 279 | * @arg CEC_FLAG_ACKE: Block Acknowledge Error |
mbed_official | 52:a51c77007319 | 280 | * @arg CEC_FLAG_LINE: Line Error |
mbed_official | 52:a51c77007319 | 281 | * @arg CEC_FLAG_TBTFE: Tx Block Transfer Finished Error |
mbed_official | 52:a51c77007319 | 282 | * @arg CEC_FLAG_TEOM: Tx End Of Message |
mbed_official | 52:a51c77007319 | 283 | * @arg CEC_FLAG_TERR: Tx Error |
mbed_official | 52:a51c77007319 | 284 | * @arg CEC_FLAG_TBTRF: Tx Byte Transfer Request or Block Transfer Finished |
mbed_official | 52:a51c77007319 | 285 | * @arg CEC_FLAG_RSOM: Rx Start Of Message |
mbed_official | 52:a51c77007319 | 286 | * @arg CEC_FLAG_REOM: Rx End Of Message |
mbed_official | 52:a51c77007319 | 287 | * @arg CEC_FLAG_RERR: Rx Error |
mbed_official | 52:a51c77007319 | 288 | * @arg CEC_FLAG_RBTF: Rx Byte/Block Transfer Finished |
mbed_official | 52:a51c77007319 | 289 | * @retval The new state of CEC_FLAG (SET or RESET) |
mbed_official | 52:a51c77007319 | 290 | */ |
mbed_official | 52:a51c77007319 | 291 | FlagStatus CEC_GetFlagStatus(uint32_t CEC_FLAG) |
mbed_official | 52:a51c77007319 | 292 | { |
mbed_official | 52:a51c77007319 | 293 | FlagStatus bitstatus = RESET; |
mbed_official | 52:a51c77007319 | 294 | uint32_t cecreg = 0, cecbase = 0; |
mbed_official | 52:a51c77007319 | 295 | |
mbed_official | 52:a51c77007319 | 296 | /* Check the parameters */ |
mbed_official | 52:a51c77007319 | 297 | assert_param(IS_CEC_GET_FLAG(CEC_FLAG)); |
mbed_official | 52:a51c77007319 | 298 | |
mbed_official | 52:a51c77007319 | 299 | /* Get the CEC peripheral base address */ |
mbed_official | 52:a51c77007319 | 300 | cecbase = (uint32_t)(CEC_BASE); |
mbed_official | 52:a51c77007319 | 301 | |
mbed_official | 52:a51c77007319 | 302 | /* Read flag register index */ |
mbed_official | 52:a51c77007319 | 303 | cecreg = CEC_FLAG >> 28; |
mbed_official | 52:a51c77007319 | 304 | |
mbed_official | 52:a51c77007319 | 305 | /* Get bit[23:0] of the flag */ |
mbed_official | 52:a51c77007319 | 306 | CEC_FLAG &= FLAG_Mask; |
mbed_official | 52:a51c77007319 | 307 | |
mbed_official | 52:a51c77007319 | 308 | if(cecreg != 0) |
mbed_official | 52:a51c77007319 | 309 | { |
mbed_official | 52:a51c77007319 | 310 | /* Flag in CEC ESR Register */ |
mbed_official | 52:a51c77007319 | 311 | CEC_FLAG = (uint32_t)(CEC_FLAG >> 16); |
mbed_official | 52:a51c77007319 | 312 | |
mbed_official | 52:a51c77007319 | 313 | /* Get the CEC ESR register address */ |
mbed_official | 52:a51c77007319 | 314 | cecbase += 0xC; |
mbed_official | 52:a51c77007319 | 315 | } |
mbed_official | 52:a51c77007319 | 316 | else |
mbed_official | 52:a51c77007319 | 317 | { |
mbed_official | 52:a51c77007319 | 318 | /* Get the CEC CSR register address */ |
mbed_official | 52:a51c77007319 | 319 | cecbase += 0x10; |
mbed_official | 52:a51c77007319 | 320 | } |
mbed_official | 52:a51c77007319 | 321 | |
mbed_official | 52:a51c77007319 | 322 | if(((*(__IO uint32_t *)cecbase) & CEC_FLAG) != (uint32_t)RESET) |
mbed_official | 52:a51c77007319 | 323 | { |
mbed_official | 52:a51c77007319 | 324 | /* CEC_FLAG is set */ |
mbed_official | 52:a51c77007319 | 325 | bitstatus = SET; |
mbed_official | 52:a51c77007319 | 326 | } |
mbed_official | 52:a51c77007319 | 327 | else |
mbed_official | 52:a51c77007319 | 328 | { |
mbed_official | 52:a51c77007319 | 329 | /* CEC_FLAG is reset */ |
mbed_official | 52:a51c77007319 | 330 | bitstatus = RESET; |
mbed_official | 52:a51c77007319 | 331 | } |
mbed_official | 52:a51c77007319 | 332 | |
mbed_official | 52:a51c77007319 | 333 | /* Return the CEC_FLAG status */ |
mbed_official | 52:a51c77007319 | 334 | return bitstatus; |
mbed_official | 52:a51c77007319 | 335 | } |
mbed_official | 52:a51c77007319 | 336 | |
mbed_official | 52:a51c77007319 | 337 | /** |
mbed_official | 52:a51c77007319 | 338 | * @brief Clears the CEC's pending flags. |
mbed_official | 52:a51c77007319 | 339 | * @param CEC_FLAG: specifies the flag to clear. |
mbed_official | 52:a51c77007319 | 340 | * This parameter can be any combination of the following values: |
mbed_official | 52:a51c77007319 | 341 | * @arg CEC_FLAG_TERR: Tx Error |
mbed_official | 52:a51c77007319 | 342 | * @arg CEC_FLAG_TBTRF: Tx Byte Transfer Request or Block Transfer Finished |
mbed_official | 52:a51c77007319 | 343 | * @arg CEC_FLAG_RSOM: Rx Start Of Message |
mbed_official | 52:a51c77007319 | 344 | * @arg CEC_FLAG_REOM: Rx End Of Message |
mbed_official | 52:a51c77007319 | 345 | * @arg CEC_FLAG_RERR: Rx Error |
mbed_official | 52:a51c77007319 | 346 | * @arg CEC_FLAG_RBTF: Rx Byte/Block Transfer Finished |
mbed_official | 52:a51c77007319 | 347 | * @retval None |
mbed_official | 52:a51c77007319 | 348 | */ |
mbed_official | 52:a51c77007319 | 349 | void CEC_ClearFlag(uint32_t CEC_FLAG) |
mbed_official | 52:a51c77007319 | 350 | { |
mbed_official | 52:a51c77007319 | 351 | uint32_t tmp = 0x0; |
mbed_official | 52:a51c77007319 | 352 | |
mbed_official | 52:a51c77007319 | 353 | /* Check the parameters */ |
mbed_official | 52:a51c77007319 | 354 | assert_param(IS_CEC_CLEAR_FLAG(CEC_FLAG)); |
mbed_official | 52:a51c77007319 | 355 | |
mbed_official | 52:a51c77007319 | 356 | tmp = CEC->CSR & 0x2; |
mbed_official | 52:a51c77007319 | 357 | |
mbed_official | 52:a51c77007319 | 358 | /* Clear the selected CEC flags */ |
mbed_official | 52:a51c77007319 | 359 | CEC->CSR &= (uint32_t)(((~(uint32_t)CEC_FLAG) & 0xFFFFFFFC) | tmp); |
mbed_official | 52:a51c77007319 | 360 | } |
mbed_official | 52:a51c77007319 | 361 | |
mbed_official | 52:a51c77007319 | 362 | /** |
mbed_official | 52:a51c77007319 | 363 | * @brief Checks whether the specified CEC interrupt has occurred or not. |
mbed_official | 52:a51c77007319 | 364 | * @param CEC_IT: specifies the CEC interrupt source to check. |
mbed_official | 52:a51c77007319 | 365 | * This parameter can be one of the following values: |
mbed_official | 52:a51c77007319 | 366 | * @arg CEC_IT_TERR: Tx Error |
mbed_official | 52:a51c77007319 | 367 | * @arg CEC_IT_TBTF: Tx Block Transfer Finished |
mbed_official | 52:a51c77007319 | 368 | * @arg CEC_IT_RERR: Rx Error |
mbed_official | 52:a51c77007319 | 369 | * @arg CEC_IT_RBTF: Rx Block Transfer Finished |
mbed_official | 52:a51c77007319 | 370 | * @retval The new state of CEC_IT (SET or RESET). |
mbed_official | 52:a51c77007319 | 371 | */ |
mbed_official | 52:a51c77007319 | 372 | ITStatus CEC_GetITStatus(uint8_t CEC_IT) |
mbed_official | 52:a51c77007319 | 373 | { |
mbed_official | 52:a51c77007319 | 374 | ITStatus bitstatus = RESET; |
mbed_official | 52:a51c77007319 | 375 | uint32_t enablestatus = 0; |
mbed_official | 52:a51c77007319 | 376 | |
mbed_official | 52:a51c77007319 | 377 | /* Check the parameters */ |
mbed_official | 52:a51c77007319 | 378 | assert_param(IS_CEC_GET_IT(CEC_IT)); |
mbed_official | 52:a51c77007319 | 379 | |
mbed_official | 52:a51c77007319 | 380 | /* Get the CEC IT enable bit status */ |
mbed_official | 52:a51c77007319 | 381 | enablestatus = (CEC->CFGR & (uint8_t)CEC_CFGR_IE) ; |
mbed_official | 52:a51c77007319 | 382 | |
mbed_official | 52:a51c77007319 | 383 | /* Check the status of the specified CEC interrupt */ |
mbed_official | 52:a51c77007319 | 384 | if (((CEC->CSR & CEC_IT) != (uint32_t)RESET) && enablestatus) |
mbed_official | 52:a51c77007319 | 385 | { |
mbed_official | 52:a51c77007319 | 386 | /* CEC_IT is set */ |
mbed_official | 52:a51c77007319 | 387 | bitstatus = SET; |
mbed_official | 52:a51c77007319 | 388 | } |
mbed_official | 52:a51c77007319 | 389 | else |
mbed_official | 52:a51c77007319 | 390 | { |
mbed_official | 52:a51c77007319 | 391 | /* CEC_IT is reset */ |
mbed_official | 52:a51c77007319 | 392 | bitstatus = RESET; |
mbed_official | 52:a51c77007319 | 393 | } |
mbed_official | 52:a51c77007319 | 394 | /* Return the CEC_IT status */ |
mbed_official | 52:a51c77007319 | 395 | return bitstatus; |
mbed_official | 52:a51c77007319 | 396 | } |
mbed_official | 52:a51c77007319 | 397 | |
mbed_official | 52:a51c77007319 | 398 | /** |
mbed_official | 52:a51c77007319 | 399 | * @brief Clears the CEC's interrupt pending bits. |
mbed_official | 52:a51c77007319 | 400 | * @param CEC_IT: specifies the CEC interrupt pending bit to clear. |
mbed_official | 52:a51c77007319 | 401 | * This parameter can be any combination of the following values: |
mbed_official | 52:a51c77007319 | 402 | * @arg CEC_IT_TERR: Tx Error |
mbed_official | 52:a51c77007319 | 403 | * @arg CEC_IT_TBTF: Tx Block Transfer Finished |
mbed_official | 52:a51c77007319 | 404 | * @arg CEC_IT_RERR: Rx Error |
mbed_official | 52:a51c77007319 | 405 | * @arg CEC_IT_RBTF: Rx Block Transfer Finished |
mbed_official | 52:a51c77007319 | 406 | * @retval None |
mbed_official | 52:a51c77007319 | 407 | */ |
mbed_official | 52:a51c77007319 | 408 | void CEC_ClearITPendingBit(uint16_t CEC_IT) |
mbed_official | 52:a51c77007319 | 409 | { |
mbed_official | 52:a51c77007319 | 410 | uint32_t tmp = 0x0; |
mbed_official | 52:a51c77007319 | 411 | |
mbed_official | 52:a51c77007319 | 412 | /* Check the parameters */ |
mbed_official | 52:a51c77007319 | 413 | assert_param(IS_CEC_GET_IT(CEC_IT)); |
mbed_official | 52:a51c77007319 | 414 | |
mbed_official | 52:a51c77007319 | 415 | tmp = CEC->CSR & 0x2; |
mbed_official | 52:a51c77007319 | 416 | |
mbed_official | 52:a51c77007319 | 417 | /* Clear the selected CEC interrupt pending bits */ |
mbed_official | 52:a51c77007319 | 418 | CEC->CSR &= (uint32_t)(((~(uint32_t)CEC_IT) & 0xFFFFFFFC) | tmp); |
mbed_official | 52:a51c77007319 | 419 | } |
mbed_official | 52:a51c77007319 | 420 | |
mbed_official | 52:a51c77007319 | 421 | /** |
mbed_official | 52:a51c77007319 | 422 | * @} |
mbed_official | 52:a51c77007319 | 423 | */ |
mbed_official | 52:a51c77007319 | 424 | |
mbed_official | 52:a51c77007319 | 425 | /** |
mbed_official | 52:a51c77007319 | 426 | * @} |
mbed_official | 52:a51c77007319 | 427 | */ |
mbed_official | 52:a51c77007319 | 428 | |
mbed_official | 52:a51c77007319 | 429 | /** |
mbed_official | 52:a51c77007319 | 430 | * @} |
mbed_official | 52:a51c77007319 | 431 | */ |
mbed_official | 52:a51c77007319 | 432 | |
mbed_official | 52:a51c77007319 | 433 | /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |