Sojus07/hackrf
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Set VAA_ENABLE# state before setting GPIO to output.

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...to avoid glitching the output voltage.
This commit is contained in:
Jared Boone
2018-12-27 20:29:25 -08:00
parent 5535cf059e
commit 610e6b58cc
1 changed files with 3 additions and 3 deletions
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6
firmware/common/hackrf_core.c
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@ -813,12 +813,12 @@ void pin_setup(void) {
#endif #endif
#ifdef RAD1O #ifdef RAD1O
/* Configure RF power supply (VAA) switch control signal as output */
gpio_output(&gpio_vaa_enable);
/* 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_enable);
/* Disable unused clock outputs. They generate noise. */ /* Disable unused clock outputs. They generate noise. */
scu_pinmux(CLK0, SCU_CLK_IN | SCU_CONF_FUNCTION7); scu_pinmux(CLK0, SCU_CLK_IN | SCU_CONF_FUNCTION7);
scu_pinmux(CLK2, SCU_CLK_IN | SCU_CONF_FUNCTION7); scu_pinmux(CLK2, SCU_CLK_IN | SCU_CONF_FUNCTION7);