swim: fix adapter speed handling

SWIM transport only supports two adapter speeds:
- "low speed"  equal to 363 kHz (8 MHz / 22)
- "high speed" equal to 800 kHz (8 MHz / 10)

Replace the previous convention that use "0" or "1" for "low" or
"high" speed with the effective speed in kHz.
Rework the implementation of stlink_speed_swim().
Set low speed in the stm8 config files, because only low speed is
permitted at debug connection; the previous code ignores the
initial value.

Change-Id: I2484c9419a2c554c59eb6b9216339393ab0b54f3
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5529
Tested-by: jenkins

This commit is contained in:

Antonio Borneo

2020-02-04 11:07:01 +01:00

parent ac18e960ce

commit ac05f929ed

5 changed files with 18 additions and 11 deletions

									
										src/jtag/swim.h
									
		+3
		
												View File
												
				@@ -13,6 +13,9 @@

				#ifndef OPENOCD_JTAG_SWIM_H

				#define OPENOCD_JTAG_SWIM_H

				#define SWIM_FREQ_LOW   363

				#define SWIM_FREQ_HIGH  800

				struct swim_driver {

					/**

					 * Send SRST (system reset) command to target.