Revision 247b3413
| source/P9221R/v1/alld_P9221R_v1.c | ||
|---|---|---|
| 113 | 113 |
apalExitStatus_t p9221r_lld_read_x_alignment(const P9221RDriver* const p9221r, int8_t* const x_alignment, const apalTime_t timeout) |
| 114 | 114 |
{
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| 115 | 115 |
uint8_t addr[2] = {(P9221R_LLD_REGISTER_ALIGNMENT_X & 0xFF00) >> 8, P9221R_LLD_REGISTER_ALIGNMENT_X & 0x00FF};
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| 116 |
apalExitStatus_t status = apalI2CMasterTransmit(p9221r->i2cd, (P9221R_LLD_I2C_ADDR_FIXED | p9221r->addr), addr, 2, x_alignment, 1, timeout); // TODO check if implicit cast is ok (uint)
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| 116 |
apalExitStatus_t status = apalI2CMasterTransmit(p9221r->i2cd, (P9221R_LLD_I2C_ADDR_FIXED | p9221r->addr), addr, 2, (uint8_t*)x_alignment, 2, timeout); // TODO check if implicit cast is ok (uint)
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| 117 | 117 |
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| 118 | 118 |
return status; |
| 119 | 119 |
} |
| ... | ... | |
| 129 | 129 |
apalExitStatus_t p9221r_lld_read_y_alignment(const P9221RDriver* const p9221r, int8_t* const y_alignment, const apalTime_t timeout) |
| 130 | 130 |
{
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| 131 | 131 |
uint8_t addr[2] = {(P9221R_LLD_REGISTER_ALIGNMENT_Y & 0xFF00) >> 8, P9221R_LLD_REGISTER_ALIGNMENT_Y & 0x00FF};
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| 132 |
apalExitStatus_t status = apalI2CMasterTransmit(p9221r->i2cd, (P9221R_LLD_I2C_ADDR_FIXED | p9221r->addr), addr, 2, y_alignment, 1, timeout); // TODO check if implicit cast is ok (uint)
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| 132 |
apalExitStatus_t status = apalI2CMasterTransmit(p9221r->i2cd, (P9221R_LLD_I2C_ADDR_FIXED | p9221r->addr), addr, 2, (uint8_t*)y_alignment, 2, timeout); // TODO check if implicit cast is ok (uint)
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| 133 | 133 |
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| 134 | 134 |
return status; |
| 135 | 135 |
} |
| ... | ... | |
| 149 | 149 |
uint16_t value; |
| 150 | 150 |
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| 151 | 151 |
apalExitStatus_t status = apalI2CMasterTransmit(p9221r->i2cd, (P9221R_LLD_I2C_ADDR_FIXED | p9221r->addr), addr, 2, buffer, 2, timeout); |
| 152 |
value = ((buffer[1] << 8) & 0x0F) | buffer[0]; // 4MSB are in buffer[1] so we shift and mask, 8LSB are in buffer[0]
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| 153 |
*voltage = (((float) value) * 6 * 2.1)/4095.0;
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| 152 |
value = ((buffer[1] & 0x0F) << 8) | buffer[0]; // 4MSB are in buffer[1] so we shift and mask, 8LSB are in buffer[0]
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| 153 |
*voltage = (((float) value) * 6 * 2.1f)/4095.0f;
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| 154 | 154 |
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return status; |
| 156 | 156 |
} |
| ... | ... | |
| 171 | 171 |
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| 172 | 172 |
apalExitStatus_t status = apalI2CMasterTransmit(p9221r->i2cd, (P9221R_LLD_I2C_ADDR_FIXED | p9221r->addr), addr, 2, buffer, 2, timeout); |
| 173 | 173 |
value = (buffer[1] << 8) | buffer[0]; // 8MSB are in buffer[1] so we shift, 8LSB are in buffer[0] |
| 174 |
*current = (((float) value) * 2 * 2.1)/4095.0;
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| 174 |
*current = (((float) value) * 2 * 2.1f)/4095.0f;
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| 175 | 175 |
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| 176 | 176 |
return status; |
| 177 | 177 |
} |
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