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max32630-fthr: improve Controller reset / PR

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This commit is contained in:
Matthias Ringwald 2020-09-09 15:08:16 +02:00
parent 7344f9affb
commit 8959f8692d
1 changed files with 13 additions and 0 deletions

13
port/max32630-fthr/src/btstack_port.c

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