Sojus07/hackrf
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Merge branch 'glitch-fix'

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This commit is contained in:
Michael Ossmann
2018-02-02 15:15:27 -07:00
parent 6da3593781 cc7f599677
commit 991c5089a9
1 changed files with 10 additions and 3 deletions
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13
firmware/common/hackrf_core.c
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@ -790,12 +790,12 @@ void pin_setup(void) {
gpio_output(&gpio_1v8_enable); gpio_output(&gpio_1v8_enable);
#ifdef HACKRF_ONE #ifdef HACKRF_ONE
/* Configure RF power supply (VAA) switch control signal as output */
gpio_output(&gpio_vaa_disable);
/* Safe state: start with VAA turned off: */ /* Safe state: start with VAA turned off: */
disable_rf_power(); disable_rf_power();
/* Configure RF power supply (VAA) switch control signal as output */
gpio_output(&gpio_vaa_disable);
scu_pinmux(SCU_PINMUX_GPIO3_10, SCU_GPIO_PDN | SCU_CONF_FUNCTION0); scu_pinmux(SCU_PINMUX_GPIO3_10, SCU_GPIO_PDN | SCU_CONF_FUNCTION0);
scu_pinmux(SCU_PINMUX_GPIO3_11, SCU_GPIO_PDN | SCU_CONF_FUNCTION0); scu_pinmux(SCU_PINMUX_GPIO3_11, SCU_GPIO_PDN | SCU_CONF_FUNCTION0);
@ -842,6 +842,13 @@ void disable_1v8_power(void) {
#ifdef HACKRF_ONE #ifdef HACKRF_ONE
void enable_rf_power(void) { void enable_rf_power(void) {
uint32_t i;
/* many short pulses to avoid one big voltage glitch */
for (i = 0; i < 1000; i++) {
gpio_clear(&gpio_vaa_disable);
gpio_set(&gpio_vaa_disable);
}
gpio_clear(&gpio_vaa_disable); gpio_clear(&gpio_vaa_disable);
} }