Hello, I've posted a few questions about this project but I keep running into issues - relatively new to this workflow, I guess. It's a modified ble_hids_keyboard example for PCA10056/S140 using custom NRF52840 hardware. The modifications largely involve having any of several active-low buttons, each on a separate GPIO, start a timer which then starts polling all keys at a fixed interval and, after 3 cycles of inactivity, stops polling. Additionally, and also probably relevant to the problem, is one of the keys being designated as a 'function key' which while disconnected/advertising, will restart advertising or, on button-held, delete bonds. It is de-initialized and re-initialized as a normal key with the rest of the keys on connection.
The problem occurs when I press a key after clicking 'Connect' on the host device (Win10 PC in this instance). The error occurs on Line 1451, or adjusted 20 in the block below. However if I wait a couple seconds, after all the peer_manager_handler messages complete, it works without issue. Using RTT Viewer to see these debug messages, by the way.
void switch_polling_handler(void * p_context){
ret_code_t err_code;
uint8_t data[] = {0, 0, 0, 0, 0, 0, 0, 0};
uint64_t current_input = (uint64_t)(NRF_P0->IN) | ((uint64_t)(NRF_P1->IN) << 32);
if((current_input != last_input) || enc_accum[0] || enc_accum[1]){
last_input = (uint64_t)(NRF_P0->IN) | ((uint64_t)(NRF_P1->IN) << 32);
input_to_data(last_input, data);
if(!m_in_boot_mode){
err_code = ble_hids_inp_rep_send(&m_hids, INPUT_REPORT_KEYS_INDEX, INPUT_REPORT_KEYS_MAX_LEN, data, m_conn_handle);
/*for(uint8_t i = 0; i < sizeof(data); i++){
NRF_LOG_RAW_INFO("%x ", data[i]);
}
NRF_LOG_RAW_INFO("\n");*/
} else{
err_code = ble_hids_boot_kb_inp_rep_send(&m_hids, INPUT_REPORT_KEYS_MAX_LEN, data, m_conn_handle);
}
APP_ERROR_CHECK(err_code);
}
if(poll_counter++ > 2){
//NRF_LOG_RAW_INFO(" :Poll Stop\n");
polling = false;
app_timer_stop(c_switch_polling_timer_id);
}
}
I try to prevent the keys from doing anything until connected with the following code snippet, but apparently it's still not quite ready to send HID reports, so I suppose my question is... how can I enable the keys such that I know I'm all ready to send HID reports without issue?
static void ble_evt_handler(ble_evt_t const * p_ble_evt, void * p_context)
{
ret_code_t err_code;
switch (p_ble_evt->header.evt_id)
{
case BLE_GAP_EVT_CONNECTED:
ble_status = connected;
stop_blinking_led();
NRF_LOG_INFO("Connected");
m_conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
err_code = nrf_ble_qwr_conn_handle_assign(&m_qwr, m_conn_handle);
APP_ERROR_CHECK(err_code);
// ADDED THIS
ble_gap_conn_params_t p_conn_params;
p_conn_params.min_conn_interval = p_ble_evt->evt.gap_evt.params.connected.conn_params.min_conn_interval;
p_conn_params.max_conn_interval = p_ble_evt->evt.gap_evt.params.connected.conn_params.max_conn_interval;
p_conn_params.slave_latency = SLAVE_LATENCY;
p_conn_params.conn_sup_timeout = p_ble_evt->evt.gap_evt.params.connected.conn_params.conn_sup_timeout;
err_code = sd_ble_gap_conn_param_update(m_conn_handle, &p_conn_params);
APP_ERROR_CHECK(err_code);
pin_as_function_button(pin_as_func, false);
for(uint8_t i = 0; i < sizeof(input_pins); i++){
if(i != KEY_AS_FUNC){ // don't do the normal task/event until connected for this button
nrf_drv_gpiote_in_event_enable(input_pins[i], true);
}
}
nrf_drv_saadc_sample(); // updates battery level
break;
...
// all key GPIOTE are disabled in the DISCONNECTED state, and the function key returned to 'function' status
When I search Error 13313 on the forums I do find the names of some events that apparently trigger when such a state has been reached, but I had trouble finding them / implementing them in my code. Any help is appreciated, and I can of course post more code snippets, or if helpful, the entire project. Thanks!
