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firmware: drivers: sl_ttc2: Updating communication protocol #343
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@c-porto
c-porto committed Jan 11, 2024
1 parent 35c9d8d commit 943dcbf
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Showing 2 changed files with 85 additions and 63 deletions.
141 changes: 80 additions & 61 deletions firmware/drivers/sl_ttc2/sl_ttc2.c
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Original file line number Diff line number Diff line change
Expand Up @@ -174,124 +174,130 @@ int sl_ttc2_write_reg(sl_ttc2_config_t config, uint8_t adr, uint32_t val)
{
uint8_t buf[8] = {0};

/* Adding preamble byte */
buf[0] = SL_TTC2_PKT_PREAMBLE;

/* Command ID */
buf[0] = SL_TTC2_CMD_WRITE_REG;
buf[1] = SL_TTC2_CMD_WRITE_REG;

/* Register address */
buf[1] = adr;
buf[2] = adr;

/* Register data */
switch(adr)
{
case SL_TTC2_REG_DEVICE_ID:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
case SL_TTC2_REG_HARDWARE_VERSION:
buf[2] = val & 0xFFU;
buf[3] = val & 0xFFU;
break;
case SL_TTC2_REG_RESET_COUNTER:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
case SL_TTC2_REG_LAST_RESET_CAUSE:
buf[2] = val & 0xFFU;
buf[3] = val & 0xFFU;
break;
case SL_TTC2_REG_INPUT_VOLTAGE_MCU:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
case SL_TTC2_REG_INPUT_CURRENT_MCU:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
case SL_TTC2_REG_TEMPERATURE_MCU:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
case SL_TTC2_REG_INPUT_VOLTAGE_RADIO:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
case SL_TTC2_REG_INPUT_CURRENT_RADIO:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
case SL_TTC2_REG_TEMPERATURE_RADIO:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
case SL_TTC2_REG_LAST_VALID_TC:
buf[2] = val & 0xFFU;
buf[3] = val & 0xFFU;
break;
case SL_TTC2_REG_RSSI_LAST_VALID_TC:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
case SL_TTC2_REG_TEMPERATURE_ANTENNA:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
case SL_TTC2_REG_ANTENNA_STATUS:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
case SL_TTC2_REG_ANTENNA_DEPLOYMENT_STATUS:
buf[2] = val & 0xFFU;
buf[3] = val & 0xFFU;
break;
case SL_TTC2_REG_ANTENNA_DEP_HIB_STATUS:
buf[2] = val & 0xFFU;
buf[3] = val & 0xFFU;
break;
case SL_TTC2_REG_TX_ENABLE:
buf[2] = val & 0xFFU;
buf[3] = val & 0xFFU;
break;
case SL_TTC2_REG_FIFO_TX_PACKET:
buf[2] = val & 0xFFU;
buf[3] = val & 0xFFU;
break;
case SL_TTC2_REG_FIFO_RX_PACKET:
buf[2] = val & 0xFFU;
buf[3] = val & 0xFFU;
break;
case SL_TTC2_REG_LEN_FIRST_RX_PACKET_IN_FIFO:
buf[2] = (val >> 8) & 0xFFU;
buf[3] = (val >> 0) & 0xFFU;
buf[3] = (val >> 8) & 0xFFU;
buf[4] = (val >> 0) & 0xFFU;
break;
default:
buf[2] = (val >> 24) & 0xFFU;
buf[3] = (val >> 16) & 0xFFU;
buf[4] = (val >> 8) & 0xFFU;
buf[5] = (val >> 0) & 0xFFU;
buf[3] = (val >> 24) & 0xFFU;
buf[4] = (val >> 16) & 0xFFU;
buf[5] = (val >> 8) & 0xFFU;
buf[6] = (val >> 0) & 0xFFU;
break;
}

return sl_ttc2_spi_write(config, buf, 1U + 1U + sl_ttc2_get_reg_num_bytes(adr));
return sl_ttc2_spi_write(config, buf, 7U);
}

int sl_ttc2_read_reg(sl_ttc2_config_t config, uint8_t adr, uint32_t *val)
{
int err = -1;

uint8_t wbuf[6] = {0};
uint8_t rbuf[6] = {0};
uint8_t wbuf[7] = {0};
uint8_t rbuf[7] = {0};

/* Adding preamble byte */
wbuf[0] = SL_TTC2_PKT_PREAMBLE;

/* Command ID */
wbuf[0] = SL_TTC2_CMD_READ_REG;
wbuf[1] = SL_TTC2_CMD_READ_REG;

/* Register address */
wbuf[1] = adr;
wbuf[2] = adr;

/* Register data + Checksum */
if (sl_ttc2_spi_write(config, wbuf, 2) == 0)
/* Register data */
if (sl_ttc2_spi_write(config, wbuf, 7U) == 0)
{
sl_ttc2_delay_ms(100);

if (sl_ttc2_spi_read(config, rbuf, 1U + 1U + sl_ttc2_get_reg_num_bytes(adr)) == 0)
if (sl_ttc2_spi_read(config, rbuf, 7U) == 0)
{
if ((rbuf[0] == SL_TTC2_CMD_READ_REG) && (rbuf[1] == adr))
if ((rbuf[0] == SL_TTC2_PKT_PREAMBLE) && (rbuf[1] == SL_TTC2_CMD_READ_REG) && (rbuf[2] == adr))
{
uint32_t val_buf = ((uint32_t)rbuf[2] << 24) |
((uint32_t)rbuf[3] << 16) |
((uint32_t)rbuf[4] << 8) |
((uint32_t)rbuf[5] << 0);
uint32_t val_buf = ((uint32_t)rbuf[3] << 24) |
((uint32_t)rbuf[4] << 16) |
((uint32_t)rbuf[5] << 8) |
((uint32_t)rbuf[6] << 0);

switch(adr)
{
Expand Down Expand Up @@ -776,18 +782,25 @@ int sl_ttc2_transmit_packet(sl_ttc2_config_t config, uint8_t *data, uint16_t len
{
int err = -1;

uint8_t buf[1 + 220 + 2] = {0};
uint8_t buf[3 + 220] = {0};

buf[0] = SL_TTC2_CMD_TRANSMIT_PKT;
/* Adding preamble byte */
buf[0] = SL_TTC2_PKT_PREAMBLE;

if (memcpy(&buf[1], data, len) == &buf[1])
{
uint16_t crc = sl_ttc2_crc16(buf, 1U + len);
/* Command byte */
buf[1] = SL_TTC2_CMD_TRANSMIT_PKT;

/* Packet lenght */
buf[2] = len;

buf[1U + len] = (crc >> 8) & 0xFFU;
buf[1U + len + 1U] = (crc >> 0) & 0xFFU;
if (sl_ttc2_spi_write(config, buf, 7U) == 0)
{
sl_ttc2_delay_ms(100);

err = sl_ttc2_spi_write(config, buf, 1U + len + 2U);
if (memcpy(&buf[3], data, len) == &buf[3])
{
err = sl_ttc2_spi_write(config, buf, 3U + len);
}
}

return err;
Expand All @@ -797,15 +810,21 @@ int sl_ttc2_read_packet(sl_ttc2_config_t config, uint8_t *data, uint16_t *len)
{
int err = -1;

uint8_t cmd = SL_TTC2_CMD_RECEIVE_PKT;
uint8_t buf[8] = {0};

/* Adding preamble byte */
buf[0] = SL_TTC2_PKT_PREAMBLE;

/* Command byte */
buf[1] = SL_TTC2_CMD_RECEIVE_PKT;

if (sl_ttc2_read_len_rx_pkt_in_fifo(config, len) == 0)
{
if (*len > 0)
{
sl_ttc2_delay_ms(100);

if (sl_ttc2_spi_write(config, &cmd, 1U) == 0)
if (sl_ttc2_spi_write(config, buf, 7U) == 0)
{
sl_ttc2_delay_ms(100);

Expand Down
7 changes: 5 additions & 2 deletions firmware/drivers/sl_ttc2/sl_ttc2.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,9 @@
#define SL_TTC2_DEVICE_ID_RADIO_0 0xCC2AU /**< TTC 2.0 device ID (radio 1). */
#define SL_TTC2_DEVICE_ID_RADIO_1 0xCC2BU /**< TTC 2.0 device ID (radio 2). */

/* TTC 2.0 Preamble byte */
#define SL_TTC2_PKT_PREAMBLE 0x7EU /**< Preamble byte value. */

/* TTC 2.0 Commands */
#define SL_TTC2_CMD_NOP 0U /**< No operation. */
#define SL_TTC2_CMD_READ_REG 1U /**< Read register command. */
Expand Down Expand Up @@ -108,7 +111,7 @@ typedef enum
{
SL_TTC2_RADIO_0=0, /**< TTC radio 0. */
SL_TTC2_RADIO_1 /**< TTC radio 1. */
} sl_ttc2_radio_t;
} sl_ttc2_radio_e;

/**
* \brief Voltage types.
Expand Down Expand Up @@ -179,7 +182,7 @@ typedef struct
spi_port_t port; /**< SPI port. */
spi_cs_t cs_pin; /**< SPI CS pin. */
spi_config_t port_config; /**< SPI configuration. */
sl_ttc2_radio_t id; /**< Device ID (radio 1 or 2). */
sl_ttc2_radio_e id; /**< Device ID (radio 1 or 2). */
} sl_ttc2_config_t;

/**
Expand Down

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