espressif/ESP8266_RTOS_SDK
1
0
Fork 0
mirror of https://github.com/espressif/ESP8266_RTOS_SDK.git synced 2025-06-04 20:53:06 +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)
{
#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
PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_U1TXD_BK);