espressif/ESP8266_RTOS_SDK
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fix(esp8266): fix UART output error when start up

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Add UART system API to flush UART and wait until all characters are sent.
This commit is contained in:
dongheng
2019-09-16 13:59:38 +08:00
parent 0769fb46dc
commit 96e5df4ebd
6 changed files with 54 additions and 49 deletions
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21
components/esp8266/source/esp_sleep.c
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@ -22,9 +22,9 @@
#include "freertos/task.h"
#include "driver/soc.h"
#include "esp8266/timer_struct.h"
#include "esp8266/uart_struct.h"
#include "esp8266/rom_functions.h"
#include "driver/rtc.h"
#include "rom/uart.h"
#define FRC2_LOAD (0x60000620)
#define FRC2_COUNT (0x60000624)
@ -109,21 +109,6 @@ static inline void update_soc_clk(pm_soc_clk_t *clk, uint32_t us)
}
}
static void esp_sleep_wait_uart_empty(int no)
{
int filled = 0;
const uart_dev_t *uart = (no == 0 ? &uart0 : &uart1);
while (uart->status.txfifo_cnt)
filled = 1;
if (filled) {
const uint32_t us = 10000000 / (UART_CLK_FREQ / uart->clk_div.val);
ets_delay_us(us);
}
}
esp_err_t esp_sleep_enable_timer_wakeup(uint32_t time_in_us)
{
if (time_in_us <= MIN_SLEEP_US)
@ -174,8 +159,8 @@ void esp_sleep_start(void)
return ;
}
esp_sleep_wait_uart_empty(0);
esp_sleep_wait_uart_empty(1);
uart_tx_wait_idle(0);
uart_tx_wait_idle(1);
int slept = 0;
pm_soc_clk_t clk;