espressif/esp-idf
1
0
Fork 1
mirror of https://github.com/espressif/esp-idf.git synced 2025-10-05 03:21:09 +02:00
Code Issues Packages Projects Releases Wiki Activity

driver(uart): fix uart module reset issue (release V4.2)

Browse Source
This commit is contained in:
Hou Wen Xiang
2021-01-13 10:31:06 +08:00
committed by bot
parent c04489cede
commit c8ef66abad
4 changed files with 18 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
components/esp32/system_api_esp32.c
View File

@@ -121,7 +121,9 @@ void IRAM_ATTR esp_restart_noos(void)
// Reset timer/spi/uart
DPORT_SET_PERI_REG_MASK(DPORT_PERIP_RST_EN_REG,
DPORT_TIMERS_RST | DPORT_SPI01_RST | DPORT_SPI2_RST | DPORT_SPI3_RST | DPORT_SPI_DMA_RST | DPORT_UART_RST | DPORT_UART1_RST | DPORT_UART2_RST);
DPORT_TIMERS_RST | DPORT_SPI01_RST | DPORT_SPI2_RST | DPORT_SPI3_RST | DPORT_SPI_DMA_RST |
//UART TX FIFO cannot be reset correctly on ESP32, so reset the UART memory by DPORT here.
DPORT_UART_RST | DPORT_UART1_RST | DPORT_UART2_RST | DPORT_UART_MEM_RST);
DPORT_REG_WRITE(DPORT_PERIP_RST_EN_REG, 0);
// Set CPU back to XTAL source, no PLL, same as hard reset