added prescaler for 16 bit pwm in LPC1347 target
Fork of mbed-dev by
targets/hal/TARGET_RENESAS/TARGET_VK_RZ_A1H/port_api.c@147:ba84b7dc41a7, 2016-09-10 (annotated)
- Committer:
- JojoS
- Date:
- Sat Sep 10 15:32:04 2016 +0000
- Revision:
- 147:ba84b7dc41a7
- Parent:
- 119:3921aeca8633
added prescaler for 16 bit timers (solution as in LPC11xx), default prescaler 31 for max 28 ms period time
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 119:3921aeca8633 | 1 | /* mbed Microcontroller Library |
mbed_official | 119:3921aeca8633 | 2 | * Copyright (c) 2006-2013 ARM Limited |
mbed_official | 119:3921aeca8633 | 3 | * |
mbed_official | 119:3921aeca8633 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbed_official | 119:3921aeca8633 | 5 | * you may not use this file except in compliance with the License. |
mbed_official | 119:3921aeca8633 | 6 | * You may obtain a copy of the License at |
mbed_official | 119:3921aeca8633 | 7 | * |
mbed_official | 119:3921aeca8633 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbed_official | 119:3921aeca8633 | 9 | * |
mbed_official | 119:3921aeca8633 | 10 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 119:3921aeca8633 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 119:3921aeca8633 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 119:3921aeca8633 | 13 | * See the License for the specific language governing permissions and |
mbed_official | 119:3921aeca8633 | 14 | * limitations under the License. |
mbed_official | 119:3921aeca8633 | 15 | */ |
mbed_official | 119:3921aeca8633 | 16 | #include "port_api.h" |
mbed_official | 119:3921aeca8633 | 17 | #include "pinmap.h" |
mbed_official | 119:3921aeca8633 | 18 | #include "gpio_api.h" |
mbed_official | 119:3921aeca8633 | 19 | #include "gpio_addrdefine.h" |
mbed_official | 119:3921aeca8633 | 20 | |
mbed_official | 119:3921aeca8633 | 21 | PinName port_pin(PortName port, int pin_n) { |
mbed_official | 119:3921aeca8633 | 22 | return (PinName)((port*0x10)+pin_n); |
mbed_official | 119:3921aeca8633 | 23 | } |
mbed_official | 119:3921aeca8633 | 24 | |
mbed_official | 119:3921aeca8633 | 25 | void port_init(port_t *obj, PortName port, int mask, PinDirection dir) { |
mbed_official | 119:3921aeca8633 | 26 | obj->port = port; |
mbed_official | 119:3921aeca8633 | 27 | obj->mask = mask; |
mbed_official | 119:3921aeca8633 | 28 | |
mbed_official | 119:3921aeca8633 | 29 | obj->reg_dir = (volatile uint32_t *)PMSR(port); |
mbed_official | 119:3921aeca8633 | 30 | obj->reg_out = (volatile uint32_t *)PORT(port); |
mbed_official | 119:3921aeca8633 | 31 | obj->reg_in = (volatile uint32_t *)PPR(port); |
mbed_official | 119:3921aeca8633 | 32 | obj->reg_buf = (volatile uint32_t *)PIBC(port); |
mbed_official | 119:3921aeca8633 | 33 | // Do not use masking, because it prevents the use of the unmasked pins |
mbed_official | 119:3921aeca8633 | 34 | // port_reg->FIOMASK = ~mask; |
mbed_official | 119:3921aeca8633 | 35 | |
mbed_official | 119:3921aeca8633 | 36 | uint32_t i; |
mbed_official | 119:3921aeca8633 | 37 | // The function is set per pin: reuse gpio logic |
mbed_official | 119:3921aeca8633 | 38 | for (i=0; i<32; i++) { |
mbed_official | 119:3921aeca8633 | 39 | if (obj->mask & (1<<i)) { |
mbed_official | 119:3921aeca8633 | 40 | gpio_set(port_pin(obj->port, i)); |
mbed_official | 119:3921aeca8633 | 41 | } |
mbed_official | 119:3921aeca8633 | 42 | } |
mbed_official | 119:3921aeca8633 | 43 | |
mbed_official | 119:3921aeca8633 | 44 | port_dir(obj, dir); |
mbed_official | 119:3921aeca8633 | 45 | } |
mbed_official | 119:3921aeca8633 | 46 | |
mbed_official | 119:3921aeca8633 | 47 | void port_mode(port_t *obj, PinMode mode) { |
mbed_official | 119:3921aeca8633 | 48 | uint32_t i; |
mbed_official | 119:3921aeca8633 | 49 | // The mode is set per pin: reuse pinmap logic |
mbed_official | 119:3921aeca8633 | 50 | for (i=0; i<32; i++) { |
mbed_official | 119:3921aeca8633 | 51 | if (obj->mask & (1<<i)) { |
mbed_official | 119:3921aeca8633 | 52 | pin_mode(port_pin(obj->port, i), mode); |
mbed_official | 119:3921aeca8633 | 53 | } |
mbed_official | 119:3921aeca8633 | 54 | } |
mbed_official | 119:3921aeca8633 | 55 | } |
mbed_official | 119:3921aeca8633 | 56 | |
mbed_official | 119:3921aeca8633 | 57 | void port_dir(port_t *obj, PinDirection dir) { |
mbed_official | 119:3921aeca8633 | 58 | switch (dir) { |
mbed_official | 119:3921aeca8633 | 59 | case PIN_INPUT : *obj->reg_dir = (obj->mask << 16) | obj->mask; |
mbed_official | 119:3921aeca8633 | 60 | *obj->reg_buf |= obj->mask; |
mbed_official | 119:3921aeca8633 | 61 | break; |
mbed_official | 119:3921aeca8633 | 62 | case PIN_OUTPUT: *obj->reg_dir = (obj->mask << 16) | ~obj->mask; |
mbed_official | 119:3921aeca8633 | 63 | *obj->reg_buf &= ~obj->mask; |
mbed_official | 119:3921aeca8633 | 64 | break; |
mbed_official | 119:3921aeca8633 | 65 | } |
mbed_official | 119:3921aeca8633 | 66 | } |
mbed_official | 119:3921aeca8633 | 67 | |
mbed_official | 119:3921aeca8633 | 68 | void port_write(port_t *obj, int value) { |
mbed_official | 119:3921aeca8633 | 69 | *obj->reg_out = (obj->mask << 16) | (value & obj->mask); |
mbed_official | 119:3921aeca8633 | 70 | } |
mbed_official | 119:3921aeca8633 | 71 | |
mbed_official | 119:3921aeca8633 | 72 | int port_read(port_t *obj) { |
mbed_official | 119:3921aeca8633 | 73 | return (*obj->reg_in & obj->mask); |
mbed_official | 119:3921aeca8633 | 74 | } |