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pins: Add support for pull down resistors

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Add initial support for selecting pull down resistors (for
micro-controllers that support it).

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2019-02-27 11:07:51 -05:00
parent b6589406d4
commit dddfb681c7
6 changed files with 40 additions and 20 deletions
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2
src/tmcuart.c
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@@ -176,7 +176,7 @@ command_config_tmcuart(uint32_t *args)
, sizeof(*t));
uint8_t pull_up = args[2];
uint32_t rx_pin = args[1], tx_pin = args[3];
t->rx_pin = gpio_in_setup(rx_pin, pull_up);
t->rx_pin = gpio_in_setup(rx_pin, !!pull_up);
t->tx_pin = gpio_out_setup(tx_pin, 1);
t->cfg_bit_time = args[4];
t->flags = (TU_LINE_HIGH | (pull_up ? TU_PULLUP : 0)