Hello,
I am trying to modify the ble_app_uart code so that my peripheral can send data automatically to the central, which in turn can print it on a computer through UART. What I mean is that instead of the ble_nus_string_send() command being called when I press enter, I want the peripheral to send a number automatically from the main.
This is the code I'm using for sending the number in the peripheral, which prints the value of number correct starting at 1:
uint8_t number = 0;
uint8_t data[20];
for (;;)
{
number = number + 1;
sprintf((char *)data, "%d", number);
ble_nus_string_send(&m_nus, data, sizeof(data));
}
This is the code in the central, in the case that BLE_NUS_C_EVT_NUS_TX_EVT happens it calls this function:
static void ble_nus_chars_received_uart_print(uint8_t * p_data, uint16_t data_len)
{
ret_code_t ret_val;
NRF_LOG_DEBUG("Receiving data.");
NRF_LOG_HEXDUMP_DEBUG(p_data, data_len);
for (uint32_t i = 0; i < data_len; i++)
{
do
{
ret_val = app_uart_put(p_data[i]);
if ((ret_val != NRF_SUCCESS) && (ret_val != NRF_ERROR_BUSY))
{
NRF_LOG_ERROR("app_uart_put failed for index 0x%04x.", i);
APP_ERROR_CHECK(ret_val);
}
} while (ret_val == NRF_ERROR_BUSY);
}
if (p_data[data_len-1] == '\r')
{
while (app_uart_put('\n') == NRF_ERROR_BUSY);
}
}
As far as I know, with the ble_nus_string_send the central should receive and print the number on the other PC. From what I know, the central enters ble_nus_c_evt_handler to establish connection but the NUS_TX_EVT is not being called.
How can I fix this? Or is there a better way to send a number from the peripheral and have the central simply print it to UART?
I'm using NRF52832 and S132.
