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feat(uart): add uart_detect_bitrate_bps API for data line bitrate measurement

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Closes https://github.com/espressif/esp-idf/issues/14721
This commit is contained in:
Song Ruo Jing
2025-01-24 19:34:49 +08:00
parent 01c9407bb6
commit b38ac5ad82
37 changed files with 492 additions and 400 deletions
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68
components/hal/esp32c2/include/hal/uart_ll.h
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@@ -29,9 +29,12 @@ extern "C" {
// Get UART hardware instance with giving uart num
#define UART_LL_GET_HW(num) (((num) == UART_NUM_0) ? (&UART0) : (&UART1))
#define UART_LL_WAKEUP_EDGE_THRED_MIN (3)
#define UART_LL_PULSE_TICK_CNT_MAX UART_LOWPULSE_MIN_CNT_V
#define UART_LL_WAKEUP_EDGE_THRED_MIN (3)
#define UART_LL_WAKEUP_EDGE_THRED_MAX(hw) UART_ACTIVE_THRESHOLD_V
#define UART_LL_INTR_MASK (0x7ffff) //All interrupt mask
#define UART_LL_WAKEUP_EDGE_THRED_MAX(hw) UART_ACTIVE_THRESHOLD_V
#define UART_LL_FSM_IDLE (0x0)
#define UART_LL_FSM_TX_WAIT_SEND (0xf)
@@ -994,6 +997,67 @@ FORCE_INLINE_ATTR uint16_t uart_ll_max_tout_thrd(uart_dev_t *hw)
return UART_RX_TOUT_THRHD_V;
}
/**
* @brief Configure the auto baudrate.
*
* @param hw Beginning address of the peripheral registers.
* @param enable Boolean marking whether the auto baudrate should be enabled or not.
*/
FORCE_INLINE_ATTR void uart_ll_set_autobaud_en(uart_dev_t *hw, bool enable)
{
hw->conf0.autobaud_en = enable ? 1 : 0;
}
/**
* @brief Get the RXD edge count.
*
* @param hw Beginning address of the peripheral registers.
*/
FORCE_INLINE_ATTR uint32_t uart_ll_get_rxd_edge_cnt(uart_dev_t *hw)
{
return hw->rxd_cnt.edge_cnt;
}
/**
* @brief Get the positive pulse minimum count.
*
* @param hw Beginning address of the peripheral registers.
*/
FORCE_INLINE_ATTR uint32_t uart_ll_get_pos_pulse_cnt(uart_dev_t *hw)
{
return hw->pospulse.min_cnt;
}
/**
* @brief Get the negative pulse minimum count.
*
* @param hw Beginning address of the peripheral registers.
*/
FORCE_INLINE_ATTR uint32_t uart_ll_get_neg_pulse_cnt(uart_dev_t *hw)
{
return hw->negpulse.min_cnt;
}
/**
* @brief Get the high pulse minimum count.
*
* @param hw Beginning address of the peripheral registers.
*/
FORCE_INLINE_ATTR uint32_t uart_ll_get_high_pulse_cnt(uart_dev_t *hw)
{
return hw->highpulse.min_cnt;
}
/**
* @brief Get the low pulse minimum count.
*
* @param hw Beginning address of the peripheral registers.
*/
FORCE_INLINE_ATTR uint32_t uart_ll_get_low_pulse_cnt(uart_dev_t *hw)
{
return hw->lowpulse.min_cnt;
}
/**
* @brief Force UART xoff.
*