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Improve ESP flasher baud rate setting

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Use old baud rate and autodetected divider to calculate new divider.

This works better with higher baud rates and drifting clocks.

CL: mos: Improve ESP flasher baud rate setting

PUBLISHED_FROM=7761e756c3ae7cc76e3b9a4fe3e40d06a779b2e8
This commit is contained in:
Deomid Ryabkov authored and Cesanta Bot committed 2019-02-08 17:38:55 +00:00
1 parent 95a36b1759
commit 0b2e474d52
8 files changed
+43 -23
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src/common/platforms/esp8266/stubs/uart.h
+4 -2
View File
@@ -20,9 +20,11 @@
#include <stdint.h>
void set_baud_rate(uint32_t uart_no, uint32_t baud_rate);
#include "uart_register.h"
uint32_t set_baud_rate(uint32_t uart_no, uint32_t old_baud_rate,
uint32_t new_baud_rate);
#define REG_UART_BASE(i) (0x60000000 + (i) *0xf00)
#define UART_FIFO_REG(i) (REG_UART_BASE(i) + 0x0)
#define UART_CONF1_REG(i) (REG_UART_BASE(i) + 0x24)
#define UART_RX_TOUT_EN (BIT(31))