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Update UART selection for Boot ROM ets_putc, when debug port is selected. #6489

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Merged
merged 7 commits into from
Sep 23, 2019
Merged

Update UART selection for Boot ROM ets_putc, when debug port is selected. #6489

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2a43488
Add code to select the UART for Boot ROM ets_putc which is used by
mhightower83 Sep 6, 2019
16a6580
Fixes debug UART selection for ets_putc
mhightower83 Sep 7, 2019
b45a8f7
Merge branch 'master' into pr_uart_select_for_ets_putc
mhightower83 Sep 12, 2019
0d710cf
Removed fp_putc_t typedef, save for a later PR
mhightower83 Sep 14, 2019
8b135dc
Merge branch 'pr_uart_select_for_ets_putc' of github.com:mhightower83…
mhightower83 Sep 14, 2019
ba007d1
Merge branch 'master' into pr_uart_select_for_ets_putc
earlephilhower Sep 17, 2019
0d828ec
Merge branch 'master' into pr_uart_select_for_ets_putc
d-a-v Sep 23, 2019
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21 changes: 21 additions & 0 deletions cores/esp8266/esp8266_undocumented.h
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,27 @@ extern int rom_i2c_readReg_Mask(int, int, int, int, int);

extern int uart_baudrate_detect(int, int);

/*
ROM function, uart_buff_switch(), is used to switch printing between UART0 and
UART1. It updates a structure that only controls a select group of print
functions. ets_putc() and ets_uart_printf() are examples and are not affected by
calls to ets_install_putc1().

Use:
0 for UART0, also clears RX FIFO
1 for UART1
*/
extern void uart_buff_switch(uint8_t);

/*
ROM function, ets_uart_printf(), prints on the UART selected by
uart_buff_switch(). Supported format options are the same as vprintf(). Also
has cooked newline behavior. No flash format/string support; however, ISR safe.
Also, uses a static function in ROM to print characters which is only
controlled by uart_buff_switch().
*/
extern int ets_uart_printf(const char *format, ...) __attribute__ ((format (printf, 1, 2)));

extern void ets_delay_us(uint32_t us);

#ifdef __cplusplus
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