Can't update BLE-Characteristic

RE: Can't update BLE-Characteristic

DK999 — Sat, 25 Jun 2016 16:34:23 GMT

Rebuild whole project, suddenly works >_>

RE: Can't update BLE-Characteristic

RichieJH — Sat, 25 Jun 2016 14:40:09 GMT

Ah, ok, it's defined as an array. Makes sense.

RE: Can't update BLE-Characteristic

DK999 — Sat, 25 Jun 2016 12:20:55 GMT

I'm getting 9 Bytes from the magnetometer that are stored in an uint8_t array. After filling the array with data I'm calling the bmx_mag_char_update function with a reference to the data. The same method works for the other characteristics but not for this one, it just get stored/updated once but the debug functionality tells me I'm getting new data on every timer interrupt from the sensors. As for now I'm not chopping anything as far as I can see. The values are stored in an array inside my main static uint8_t gyro[7],acc[7],mag[9],temp[2];, then the data gets written to it

void bmx_get_mag(uint8_t *rx)
{
static uint8_t tx[2] = {BMX_MAG_PWR_CTRL2,0x02};
// ...
tx[0]=BMX_MAG_DATA;
nrf_gpio_pin_clear(SPI_CS_MAG);
nrf_drv_spi_transfer(&spi, tx, 1, rx, 9);		// Get Data
wait_for_SPI();
nrf_gpio_pin_set(SPI_CS_MAG);
}

then calling the bmx_mag_char_update

RE: Can't update BLE-Characteristic

RichieJH — Sat, 25 Jun 2016 11:04:21 GMT

Are you chopping off data by type casting it as uint8_t when your code suggests it may be bigger? I don't know the data structure but it looks a little odd from a coding perspective.