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native: Remove high current draw (#814) 

Special iRST_SENSE handling does not apply at least for BMP 2.1c.
On V2.1c, iRST_SENSE was set as output high and xRST high shorted
iRST_SENSE to ground via Q2
FIXME: Check for older versions!
This commit is contained in:
Uwe Bonnes 2020-12-16 17:02:22 +01:00 committed by UweBonnes
parent 3b8502c2e5
commit 4eb336277c
1 changed files with 11 additions and 5 deletions
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16
src/platforms/native/platform.c
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@ -131,10 +131,6 @@ void platform_init(void)
GPIO_CNF_OUTPUT_PUSHPULL,
LED_UART | LED_IDLE_RUN | LED_ERROR);
/* FIXME: This pin in intended to be input, but the TXS0108 fails
* to release the device from reset if this floats. */
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO7);
/* Enable SRST output. Original uses a NPN to pull down, so setting the
* output HIGH asserts. Mini is directly connected so use open drain output
* and set LOW to assert.
@ -146,7 +142,17 @@ void platform_init(void)
? GPIO_CNF_OUTPUT_PUSHPULL
: GPIO_CNF_OUTPUT_OPENDRAIN),
SRST_PIN);
/* FIXME: Gareth, Esden, what versions need this fix? */
if (platform_hwversion() < 3) {
/* FIXME: This pin in intended to be input, but the TXS0108 fails
* to release the device from reset if this floats. */
gpio_set_mode(SRST_SENSE_PORT, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, SRST_SENSE_PIN);
} else {
gpio_set(SRST_SENSE_PORT, SRST_SENSE_PIN);
gpio_set_mode(SRST_SENSE_PORT, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_PULL_UPDOWN, SRST_SENSE_PIN);
}
/* Enable internal pull-up on PWR_BR so that we don't drive
TPWR locally or inadvertently supply power to the target. */
if (platform_hwversion () == 1) {