Posted on December 25, 2017 at 02:29In STM32F4's HAL code for function 'HAL_TIM_OnePulse_Start':
/**
* @brief Starts the TIM One Pulse signal generation.
* @param htim pointer to a TIM_HandleTypeDef structure that contains
* the configuration information for TIM module.
* @param OutputChannel TIM Channels to be enabled.
* This parameter can be one of the following values:
* @arg TIM_CHANNEL_1: TIM Channel 1 selected
* @arg TIM_CHANNEL_2: TIM Channel 2 selected
* @retval HAL status
*/
HAL_StatusTypeDef
HAL_TIM_OnePulse_Start
(TIM_HandleTypeDef
*
htim,
uint32_t
OutputChannel)
{
/* Prevent unused argument(s) compilation warning */
UNUSED
(OutputChannel);
/* Enable the Capture compare and the Input Capture channels
(in the OPM Mode the two possible channels that can be used are TIM_CHANNEL_1 and TIM_CHANNEL_2)
if TIM_CHANNEL_1 is used as output, the TIM_CHANNEL_2 will be used as input and
if TIM_CHANNEL_1 is used as input, the TIM_CHANNEL_2 will be used as output
in all combinations, the TIM_CHANNEL_1 and TIM_CHANNEL_2 should be enabled together
No need to enable the counter, it's enabled automatically by hardware
(the counter starts in response to a stimulus and generate a pulse */
TIM_CCxChannelCmd
(htim->
Instance
, TIM_CHANNEL_1, TIM_CCx_ENABLE);
TIM_CCxChannelCmd
(htim->
Instance
, TIM_CHANNEL_2, TIM_CCx_ENABLE);
if
(
IS_TIM_ADVANCED_INSTANCE
(htim->
Instance
)
!=
RESET)
{
/* Enable the main output */
__HAL_TIM_MOE_ENABLE
(htim);
}
/* Return function status */
return
HAL_OK;
}
It seems only CH1 and CH2 is used, does this mean only CH1 or CH2 can be used in one-pulse mode?
#one-pulse-mode
