Maxim Integrated 7-bit Sink/Source Current DAC. DS4424, DS4422 input/output current Digital-to-Analog Converter Driver/library code.
Dependents: DS4424_Hello_Current_DAC_on_MAX32630FTHR
Diff: DS4424.h
- Revision:
- 2:b7a81b724561
- Parent:
- 1:a5d963a3c298
- Child:
- 3:5070d2f614d5
--- a/DS4424.h Mon Sep 10 21:53:18 2018 +0000 +++ b/DS4424.h Sun Oct 07 21:31:57 2018 +0000 @@ -47,36 +47,36 @@ #define DS4424_SINK_I 0 /** -* @brief Four/two Channel I2C Sink/Source Current DAC -* @version 1.0000.2 -* -* @details The DS4424/DS422 contains four/two I2C -* programmable current DACs. This driver enables -* the writing of source/since values to the channel -* registers. -* -* @code -* #include "mbed.h" -* #include "DS4424.h" -* #include "max32630fthr.h" -* MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3); -* I2C i2cBus(P3_4, P3_5); -* DS4424 ds4424_dac(i2cBus, DS4424::DS4424_I2C_SLAVE_ADRS0, DS4424::DS4424_IC); + * @brief Four/two Channel I2C Sink/Source Current DAC + * @version 1.0000.3 + * + * @details The DS4424/DS422 contains four/two I2C + * programmable current DACs. This driver enables + * the writing of source/since values to the channel + * registers. + * + * @code + * #include "mbed.h" + * #include "DS4424.h" + * #include "max32630fthr.h" + * MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3); + * I2C i2cBus(P3_4, P3_5); + * DS4424 ds4424_dac(i2cBus, DS4424::DS4424_I2C_SLAVE_ADRS0, DS4424::DS4424_IC); -* int main() -* { -* int32_t value[4]={0,0,0,0}; -* int ret; -* -* i2cBus.frequency(400000); -* -* // read channel 0 register -* ret = ds4424_dac.read_raw(value[0], DS4424::REG_OUT0); -* -* //... rest of application -* } -* @endcode -*/ + * int main() + * { + * int32_t value[4]={0,0,0,0}; + * int ret; + * + * i2cBus.frequency(400000); + * + * // read channel 0 register + * ret = ds4424_dac.read_raw(value[0], DS4424::REG_OUT0); + * + * //... rest of application + * } + * @endcode + */ class DS4424 { @@ -109,9 +109,9 @@ /** - * @brief Register Addresses - * @details Enumerated MAX20303 register addresses - */ + * @brief Register Addresses + * @details Enumerated MAX20303 register addresses + */ enum ChannelRegAddr_e { REG_OUT0 = 0xF8, // channel 0 REG_OUT1 = 0xF9, @@ -121,76 +121,76 @@ /**********************************************************//** - * @brief Constructor for DS4424 Class. - * - * @details Allows user to use existing I2C object - * - * On Entry: - * @param[in] i2c_bus - pointer to existing I2C object - * @param[in] i2c_adrs - 7-bit slave address of DS4424 - * @param[in] ic_variant - which type of DS44xx is used - * - * On Exit: - * - * @return None - **************************************************************/ + * @brief Constructor for DS4424 Class. + * + * @details Allows user to use existing I2C object + * + * On Entry: + * @param[in] i2c_bus - pointer to existing I2C object + * @param[in] i2c_adrs - 7-bit slave address of DS4424 + * @param[in] ic_variant - which type of DS44xx is used + * + * On Exit: + * + * @return None + **************************************************************/ DS4424(I2C &i2c_bus, DS4424_i2c_adrs_t slaveAddress, DS4424_ic_t ic_variant); /**********************************************************//** - * @brief Default destructor for DS4424 Class. - * - * @details Destroys I2C object if owner - * - * On Entry: - * - * On Exit: - * - * @return None - **************************************************************/ + * @brief Default destructor for DS4424 Class. + * + * @details Destroys I2C object if owner + * + * On Entry: + * + * On Exit: + * + * @return None + **************************************************************/ ~DS4424(); -/** - * @brief Read raw value of a channel. Negative values are sink; Positive values are source. - * @param result - Value that is read from the register - * @param chan_addr - Channel 0 to 3 - * @return 0 on success, non-zero on failure - */ + /** + * @brief Read raw value of a channel. Negative values are sink; Positive values are source. + * @param result - Value that is read from the register + * @param chan_addr - Channel 0 to 3 + * @return 0 on success, negative number on failure + */ int read_raw(int32_t &result, ChannelRegAddr_e chan_addr); - /** - * @brief Write raw value to a channel. - * @param value - Value that is stored to the register - * @param chan_addr - Channel 0 to 3 - * @return 0 on success, non-zero on failure - */ + /** + * @brief Write raw value to a channel. + * @param value - Value that is stored to the register + * @param chan_addr - Channel 0 to 3 + * @return 0 on success, negative number on failure + */ int write_raw(int32_t value, ChannelRegAddr_e chan_addr); protected: /** - * @brief Read register of device at slave address - * @param reg - Register address - * @param[out] value - Read data on success - * @return 0 on success, non-zero on failure - */ + * @brief Read register of device at slave address + * @param reg - Register address + * @param[out] value - Read data on success + * @return 0 on success, negative number on failure + */ int read_register(ChannelRegAddr_e reg, uint8_t &value); /** - * @brief Write register of device at slave address - * @param reg - Register address - * @param value - Value to write - * @return 0 on success, non-zero on failure - */ + * @brief Write register of device at slave address + * @param reg - Register address + * @param value - Value to write + * @return 0 on success, negative number on failure + */ int write_register(ChannelRegAddr_e reg, uint8_t value); private: - /// I2C object + /** I2C object */ I2C &m_i2c; - /// Device slave addresses + /** Device slave addresses */ uint8_t m_writeAddress, m_readAddress; - /// Address of the Maximum Register for this device + /** Address of the Maximum Register for this device */ ChannelRegAddr_e m_max_ch_reg_addr; };