/**
* \brief Writes a DAC channel configuration to the hardware module.
*
* Writes out a given channel configuration to the hardware module.
*
* \note The DAC device instance structure must be initialized before calling
* this function.
*
* \param[in] module_inst Pointer to the DAC software instance struct
* \param[in] channel Channel to configure
* \param[in] config Pointer to the configuration struct
*
*/
void dac_chan_set_config(
struct dac_module *const module_inst,
const enum dac_channel channel,
struct dac_chan_config *const config)
{
/* Sanity check arguments */
Assert(module_inst);
Assert(module_inst->hw);
Assert(config);
/* MUX the DAC VOUT pin */
struct system_pinmux_config pin_conf;
system_pinmux_get_config_defaults(&pin_conf);
pin_conf.direction = SYSTEM_PINMUX_PIN_DIR_INPUT;
pin_conf.input_pull = SYSTEM_PINMUX_PIN_PULL_NONE;
if(channel == DAC_CHANNEL_0) {
/* Set up the DAC VOUT0 pin */
pin_conf.mux_position = MUX_PA02B_DAC_VOUT0;
system_pinmux_pin_set_config(PIN_PA02B_DAC_VOUT0, &pin_conf);
}
else if(channel == DAC_CHANNEL_1) {
/* Set up the DAC VOUT1 pin */
pin_conf.mux_position = MUX_PA05B_DAC_VOUT1;
system_pinmux_pin_set_config(PIN_PA05B_DAC_VOUT1, &pin_conf);
}
Dac *const dac_module = module_inst->hw;
uint32_t new_dacctrl = 0;
/* Left adjust data if configured */
if (config->left_adjust) {
new_dacctrl |= DAC_DACCTRL_LEFTADJ;
}
/* Set current control */
new_dacctrl |= config->current;
/* Enable DAC in standby sleep mode if configured */
if (config->run_in_standby) {
new_dacctrl |= DAC_DACCTRL_RUNSTDBY;
}
/* Voltage pump disable if configured */
if (config->dither_mode) {
new_dacctrl |= DAC_DACCTRL_DITHER;
}
new_dacctrl |= DAC_DACCTRL_REFRESH(config->refresh_period);
/* Apply the new configuration to the hardware module */
dac_module->DACCTRL[channel].reg = new_dacctrl;
}
/**
* \brief Writes a DAC channel configuration to the hardware module.
*
* Writes out a given channel configuration to the hardware module.
*
* \note The DAC device instance structure must be initialized before calling
* this function.
*
* \param[in] module_inst Pointer to the DAC software instance struct
* \param[in] channel Channel to configure
* \param[in] config Pointer to the configuration struct
*
*/
void dac_chan_set_config(
struct dac_module *const module_inst,
const enum dac_channel channel,
struct dac_chan_config *const config)
{
/* Sanity check arguments */
Assert(module_inst);
Assert(module_inst->hw);
Assert(config);
Dac *const dac_module = module_inst->hw;
uint32_t new_dacctrl = 0;
/* Left adjust data if configured */
if (config->left_adjust) {
new_dacctrl |= DAC_DACCTRL_LEFTADJ;
}
/* Set current control */
new_dacctrl |= config->current;
/* Enable DAC in standby sleep mode if configured */
if (config->run_in_standby) {
new_dacctrl |= DAC_DACCTRL_RUNSTDBY;
}
/* Voltage pump disable if configured */
if (config->dither_mode) {
new_dacctrl |= DAC_DACCTRL_DITHER;
}
new_dacctrl |= DAC_DACCTRL_REFRESH(config->refresh_period);
/* Apply the new configuration to the hardware module */
dac_module->DACCTRL[channel].reg = new_dacctrl;
}
