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Diffstat (limited to 'os/hal/boards/MICROBIT/board.c')
| -rw-r--r-- | os/hal/boards/MICROBIT/board.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/os/hal/boards/MICROBIT/board.c b/os/hal/boards/MICROBIT/board.c new file mode 100644 index 0000000..12f78e2 --- /dev/null +++ b/os/hal/boards/MICROBIT/board.c @@ -0,0 +1,91 @@ +/* + Copyright (C) 2017 Stéphane D'Alu + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +#include "hal.h" + +#if HAL_USE_PAL || defined(__DOXYGEN__) + +/* RAM Banks + * (Values are defined in Nordic gcc_startup_nrf51.s) + */ +#define NRF_POWER_RAMON_ADDRESS 0x40000524 +#define NRF_POWER_RAMONB_ADDRESS 0x40000554 +#define NRF_POWER_RAMONx_RAMxON_ONMODE_Msk 0x3 + +/** + * @brief PAL setup. + * @details Digital I/O ports static configuration as defined in @p board.h. + * This variable is used by the HAL when initializing the PAL driver. + */ +const PALConfig pal_default_config = +{ + .pads = { + PAL_MODE_OUTPUT_OPENDRAIN, /* P0.0 : SCL P19 */ + PAL_MODE_UNCONNECTED, /* P0.1 : PAD1 P2 */ + PAL_MODE_UNCONNECTED, /* P0.2 : PAD2 P1 */ + PAL_MODE_UNCONNECTED, /* P0.3 : PAD3 P0 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.4 : COL1 P3 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.5 : COL2 P4 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.6 : COL3 P10 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.7 : COL4 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.8 : COL5 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.9 : COL6 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.10: COL7 P9 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.11: COL8 P7 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.12: COL9 P6 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.13: ROW1 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.14: ROW2 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.15: ROW3 */ + PAL_MODE_UNCONNECTED, /* P0.16 P16 */ + PAL_MODE_INPUT, /* P0.17: BTN_A P5 */ + PAL_MODE_UNCONNECTED, /* P0.18 P8 */ + PAL_MODE_INPUT, /* P0.19: BTN_RST */ + PAL_MODE_UNCONNECTED, /* P0.20 P12 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.21: SPI_MOSI P15 */ + PAL_MODE_INPUT_PULLUP, /* P0.22: SPI_MISO P14 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.23: SPI_SCK P13 */ + PAL_MODE_OUTPUT_PUSHPULL, /* P0.24: UART_TX */ + PAL_MODE_INPUT_PULLUP, /* P0.25: UART_RX */ + PAL_MODE_INPUT, /* P0.26: BTN_B P11 */ + PAL_MODE_INPUT, /* P0.27: ACC_INT2 */ + PAL_MODE_INPUT, /* P0.28: ACC_INT1 */ + PAL_MODE_INPUT, /* P0.29: MAG_INT1 */ + PAL_MODE_OUTPUT_OPENDRAIN, /* P0.30: SDA P20 */ + PAL_MODE_UNCONNECTED, /* P0.31 */ + }, +}; +#endif + +/** + * @brief Early initialization code. + * @details This initialization is performed just after reset before BSS and + * DATA segments initialization. + */ +void __early_init(void) +{ + /* Make sure ALL RAM banks are powered on */ + *(uint32_t *)NRF_POWER_RAMON_ADDRESS |= NRF_POWER_RAMONx_RAMxON_ONMODE_Msk; + *(uint32_t *)NRF_POWER_RAMONB_ADDRESS |= NRF_POWER_RAMONx_RAMxON_ONMODE_Msk; +} + +/** + * @brief Late initialization code. + * @note This initialization is performed after BSS and DATA segments + * initialization and before invoking the main() function. + */ +void boardInit(void) +{ +} |