alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-08 12:10:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

uart_tx_wait_idle: fix issue with last character not transmitted

Browse Source 
- ROM function uart_tx_wait_idle may have a bug which causes the function to return before the final character is fully transmitted.
  This replaces uart_tx_wait_idle declaration with a static inline definition which fixes the issue.
- Also replaces the use of uart_tx_flush with uart_tx_wait_idle in esp_restart, to remove garbage in console output on restart.
- rtc_printf is temporary replaced with a no-op, pending a new release of librtc.a. Current release assumes that UART0 is used for output,
  and switches UART0 baud rate while doing frequency changes and printing some log output. This doesn’t work if a different UART is used for output.
This commit is contained in:
Ivan Grokhotkov
2016-12-08 01:37:07 +08:00
parent b3f6cd08db
commit b57aecdfe9
3 changed files with 16 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
components/esp32/system_api.c
View File

@@ -105,10 +105,10 @@ void IRAM_ATTR esp_restart(void)
Cache_Read_Disable(0);
Cache_Read_Disable(1);
// Flush any data left in UART FIFO
uart_tx_flush(0);
uart_tx_flush(1);
uart_tx_flush(2);
// Flush any data left in UART FIFOs
uart_tx_wait_idle(0);
uart_tx_wait_idle(1);
uart_tx_wait_idle(2);
// Reset wifi/bluetooth (bb/mac)
SET_PERI_REG_MASK(DPORT_WIFI_RST_EN_REG, 0x1f);