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nrf5/hal: Started implementation of hal_twi.c (non-DMA). Init function started.

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This commit is contained in:
Glenn Ruben Bakke 2017-02-02 20:03:50 +01:00
parent 70d64e2892
commit 0629abac53
1 changed files with 14 additions and 1 deletions
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15
nrf5/hal/hal_twi.c
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@ -36,6 +36,19 @@ static const uint32_t hal_twi_frequency_lookup[] = {
};
void hal_twi_master_init(NRF_TWI_Type * p_instance, hal_twi_init_t const * p_twi_init) {
#if NRF52840_XXAA
p_instance->PSEL.SCL = p_twi_init->scl_pin->pin;
p_instance->PSEL.SDA = p_twi_init->sda_pin->pin;
p_instance->PSEL.SCL |= (p_twi_init->scl_pin->port << TWI_PSEL_SCL_PORT_Pos);
p_instance->PSEL.SDA |= (p_twi_init->sda_pin->port << TWI_PSEL_SDA_PORT_Pos);
#else
p_instance->PSELSCL = p_twi_init->scl_pin->pin;
p_instance->PSELSDA = p_twi_init->sda_pin->pin;
#endif
p_instance->FREQUENCY = hal_twi_frequency_lookup[p_twi_init->freq];
p_instance->ENABLE = (TWI_ENABLE_ENABLE_Enabled << TWI_ENABLE_ENABLE_Pos);
}
void hal_twi_master_tx(NRF_TWI_Type * p_instance,
@ -43,7 +56,7 @@ void hal_twi_master_tx(NRF_TWI_Type * p_instance,
uint16_t transfer_size,
const uint8_t * tx_data,
bool stop) {
p_instance->ADDRESS = addr;
}
void hal_twi_master_rx(NRF_TWI_Type * p_instance,