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Added the ability to select stdout UART by modyfying STDOUT_UART.

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This commit is contained in:
doragasu 2016-01-19 13:23:06 +01:00
parent 3e7edd43aa
commit b0fb1049ed
3 changed files with 11 additions and 4 deletions
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5
common.mk
View file

@ -48,6 +48,9 @@ ESPTOOL ?= esptool.py
ESPPORT ?= /dev/ttyUSB0
ESPBAUD ?= 115200
# Set STDOUT_UART to the UART number that will be used to output using printf/os_printf
STDOUT_UART ?= 0
# Set OTA to 1 to build an image that supports rBoot OTA bootloader
#
# Currently only works with 16mbit or more flash sizes, with 8mbit
@ -100,7 +103,7 @@ ENTRY_SYMBOL ?= call_user_start
SPLIT_SECTIONS ?= 1
# Common flags for both C & C++_
C_CXX_FLAGS ?= -Wall -Werror -Wl,-EL -nostdlib $(EXTRA_C_CXX_FLAGS)
C_CXX_FLAGS ?= -Wall -Werror -Wl,-EL -nostdlib -DPRINT_UART=$(STDOUT_UART) $(EXTRA_C_CXX_FLAGS)
# Flags for C only
CFLAGS ?= $(C_CXX_FLAGS) -std=gnu99 $(EXTRA_CFLAGS)
# Flags for C++ only

6
core/app_main.c
View file

@ -165,7 +165,7 @@ void IRAM sdk_user_fatal_exception_handler(void) {
static void IRAM default_putc(char c) {
uart_putc(0, c);
uart_putc(PRINT_UART, c);
}
// .text+0x258
@ -232,6 +232,10 @@ void IRAM sdk_user_start(void) {
sdk_SPIRead(ic_flash_addr, buf32, sizeof(struct sdk_g_ic_saved_st));
Cache_Read_Enable(0, 0, 1);
zero_bss();
// If user wants output through UART1, switch GPIO2 to U1TX function
#if PRINT_UART == 1
PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_U1TXD_BK);
#endif
sdk_os_install_putc1(default_putc);
if (cksum_magic == 0xffffffff) {
// No checksum required

4
core/newlib_syscalls.c
View file

@ -45,8 +45,8 @@ long _write_r(struct _reent *r, int fd, const char *ptr, int len )
if(ptr[i] == '\r')
continue;
if(ptr[i] == '\n')
uart_putc(0, '\r');
uart_putc(0, ptr[i]);
uart_putc(PRINT_UART, '\r');
uart_putc(PRINT_UART, ptr[i]);
}
return len;
}