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max32630-fthr: improve Controller reset / PR #317
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@ -72,6 +72,8 @@ const gpio_cfg_t PAN1326_SLOW_CLK = { PORT_1, PIN_7, GPIO_FUNC_GPIO,
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const gpio_cfg_t PAN1326_nSHUTD = { PORT_1, PIN_6, GPIO_FUNC_GPIO,
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GPIO_PAD_NORMAL };
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const gpio_cfg_t PAN1326_HCIRTS = { PORT_0, PIN_3, GPIO_FUNC_GPIO,
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GPIO_PAD_INPUT_PULLUP };
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const gpio_cfg_t PAN1326_HCICTS = { PORT_0, PIN_2, GPIO_FUNC_GPIO,
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GPIO_PAD_NORMAL };
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static void dummy_handler(void) {};
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@ -250,10 +252,13 @@ int bt_comm_init() {
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hal_tick_init();
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hal_delay_us(1);
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/* HCI module RTS as input with 25k pullup */
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if ((error = GPIO_Config(&PAN1326_HCIRTS)) != E_NO_ERROR) {
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printf("Error setting PAN1326_HCIRTS %d\n", error);
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}
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GPIO_OutSet(&PAN1326_HCIRTS);
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init_slow_clock();
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/*
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* when enabling the P1.7 RTC output, P1.6 will be hardcoded to an input with 25k pullup enabled.
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@ -261,6 +266,14 @@ int bt_comm_init() {
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* The PAN1326B data sheet says the NSHUTD pin is pulled down, but the input impedance is stated at 1Meg Ohm,
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* The so the 25k pullup should be enough to reach the minimum 1.42V to enable the device.
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* */
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/* Force PAN1326 shutdown to be output and take it out of reset */
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if ((error = GPIO_Config(&PAN1326_nSHUTD)) != E_NO_ERROR) {
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printf("Error setting PAN1326_nSHUTD %d\n", error);
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}
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GPIO_OutSet(&PAN1326_nSHUTD);
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/*Check the module is ready to receive data */
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while (GPIO_InGet(&PAN1326_HCIRTS)) {
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cnt++;
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}
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