diff options
Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC15XX/pinmap.c')
-rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC15XX/pinmap.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC15XX/pinmap.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC15XX/pinmap.c new file mode 100644 index 0000000000..c466534cf9 --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC15XX/pinmap.c @@ -0,0 +1,41 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * 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 "mbed_assert.h" +#include "pinmap.h" +#include "mbed_error.h" + +void pin_function(PinName pin, int function) { +} + +void pin_mode(PinName pin, PinMode mode) { + MBED_ASSERT(pin != (PinName)NC); + + if ((pin == P0_22) || (pin == P0_23)) { + // The true open-drain pins PIO0_22 and PIO0_23 can be configured for different I2C-bus speeds. + return; + } + + __IO uint32_t *reg = (__IO uint32_t*)(LPC_IOCON_BASE + (pin * 4)); + + if (mode == OpenDrain) { + *reg |= (1 << 10); + } else { + uint32_t tmp = *reg; + tmp &= ~(0x3 << 3); + tmp |= (mode & 0x3) << 3; + *reg = tmp; + } +} |