Hello,
I have some difficulties to make an ant acknoledgement with my nrf51422 (s210), and i would be grateful if you could help me with it. (SDK used 12.2)
I have 2 modules nrf51422 that communicate in ant:
-
A master (configuration : CHANNEL_TYPE_MASTER | ASYNCRONE_TX_MODE | FAST_INIT) The master sends sd_ant_acknowledge_message_tx to a slave and resents 10 times if not acknoledged.
-
A slave (configuration : CHANNEL_TYPE_SLAVE | EXT_PARAM_ALWAYS_SEARCH) The slave receives the message (Configurated leds are blincking) and should acknoledge the received message but it doesn't acknowledge.
My questions are :
- Is the acknoledgement directly managed by library?
- If not (1), which functions should I use for (sd_ant_acknowledge_message_tx?)
- If yes (2), could or should i use the same channel?
- Is there an exemple I could have or find to help me implement it?
Thanks in advance for your answers and sorry for my poor english.
Best regards from France.
Extract of the receiver code :
void ant_evt_dispatch(ant_evt_t * p_ant_evt)
{
uint32_t err_code;
if (p_ant_evt->channel == ANT_SCANNER_CHANNEL_NUMBER)
{
ANT_MESSAGE * p_message = (ANT_MESSAGE *)p_ant_evt->evt_buffer;
switch (p_ant_evt->event)
{
//If a message has been received
case EVENT_RX:
if (p_message->ANT_MESSAGE_ucMesgID == MESG_BROADCAST_DATA_ID
|| p_message->ANT_MESSAGE_ucMesgID == MESG_ACKNOWLEDGED_DATA_ID
|| p_message->ANT_MESSAGE_ucMesgID == MESG_BURST_DATA_ID)
{
//Make the led n°1 blink
err_code = bsp_indication_set(BSP_INDICATE_RCV_OK);
APP_ERROR_CHECK(err_code);
//If the message have the right data make the led 2 blink
if (p_message->ANT_MESSAGE_aucPayload[7]==0x50)
{
LEDS_ON(BSP_LED_2_MASK);
}
//If the message is an aknoledge message, sent it back!
//I totally not sure that it s the right way to acknowledge the received message
//I make an eco of the received message
if (p_message->ANT_MESSAGE_ucMesgID ==MESG_ACKNOWLEDGED_DATA_ID)
{
err_code = sd_ant_acknowledge_message_tx( ANT_SCANNER_CHANNEL_NUMBER,8,p_message->ANT_MESSAGE_aucPayload);
}
}
break;
default:
break;
}
}
}
Patrice.
