init

include/hal/i2c_wrapper.hpp

@@ -0,0 +1,11 @@
+#include <stdint.h>
+#include "nrf_twi_mngr.h"
+
+namespace edge::aidan {
+
+static uint8_t i2c_reg_read(uint8_t i2c_addr, uint8_t reg_addr);
+
+static void i2c_reg_write(uint8_t i2c_addr, uint8_t reg_addr, uint8_t data);
+
+void lsm303agr_init(const nrf_twi_mngr_t* i2c);
+} // namespace edge::aidan

src/hal/i2c_wrapper.cpp

@@ -0,0 +1,37 @@
+#include "hal/i2c_wrapper.hpp"
+#include "cmsis_gcc.h"
+#include "nrf_error.h"
+#include "nrf_twi_mngr.h"
+#include "sdk_errors.h"
+
+namespace edge::aidan {
+
+static const nrf_twi_mngr_t* i2c_manager = NULL;
+
+uint8_t i2c_reg_read(uint8_t i2c_addr, uint8_t reg_addr)
+{
+    uint8_t rx_buf = 0;
+    nrf_twi_mngr_transfer_t const read_transfer[] = {
+        NRF_TWI_MNGR_WRITE(i2c_addr, &reg_addr, 1, NRF_TWI_MNGR_NO_STOP),
+        NRF_TWI_MNGR_READ(i2c_addr, &rx_buf, 1, NRF_TWI_MNGR_NO_STOP)
+    };
+    ret_code_t result = nrf_twi_mngr_perform(i2c_manager, NULL, read_transfer, 2, NULL);
+    if (result != NRF_SUCCESS)
+    {
+        printf("I2C TRANSACTION FAILED!");
+    }
+    return rx_buf;
+};
+
+void i2c_reg_write(uint8_t i2c_addr, uint8_t reg_addr, uint8_t data)
+{
+    return;
+}
+
+void lsm303agr_init(const int *i2c)
+    {
+    return;
+}
+
+
+}