espressif/ESP8266_RTOS_SDK
1
0
Fork 0
mirror of https://github.com/espressif/ESP8266_RTOS_SDK.git synced 2025-05-21 17:16:29 +08:00
Code Issues Packages Projects Releases Wiki Activity

feat(esp8266): Add configuration for UART swap I/O pins

Browse Source
This commit is contained in:
Dong Heng
2018-09-07 15:45:41 +08:00
parent 57e11f6702
commit c8cbc97e0d
2 changed files with 16 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
components/bootloader_support/src/bootloader_init.c
View File

@ -568,6 +568,16 @@ static void update_flash_config(const esp_image_header_t* pfhdr);
static void uart_console_configure(void) static void uart_console_configure(void)
{ {
#if CONFIG_CONSOLE_UART_SWAP_IO
while (READ_PERI_REG(UART_STATUS(0)) & (UART_TXFIFO_CNT << UART_TXFIFO_CNT_S));
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, FUNC_UART0_CTS);
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, FUNC_UART0_RTS);
// UART0: TXD <-> RTS and RXD <-> CTS
SET_PERI_REG_MASK(UART_SWAP_REG, 0x4);
#endif
#if CONFIG_CONSOLE_UART_NUM == 1 #if CONFIG_CONSOLE_UART_NUM == 1
PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_U1TXD_BK); PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_U1TXD_BK);

6
components/esp8266/Kconfig
View File

@ -57,6 +57,12 @@ config CONSOLE_UART_BAUDRATE
default 74880 default 74880
range 1200 4000000 range 1200 4000000
config CONSOLE_UART_SWAP_IO
bool "Swap UART0 I/O pins"
default n
help
Enable this option, UART0's I/O pins are swaped: TXD <-> RTS, RTX <-> CTS.
endmenu endmenu
menu WIFI menu WIFI