pico-ice
RaspberryPi Pico with an iCE40 FPGA
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ice_fpga.h
1/*
2 * MIT License
3 *
4 * Copyright (c) 2023 tinyVision.ai
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
37#pragma once
38#include <stdint.h>
39#include <stdbool.h>
40
41#ifdef __cplusplus
42extern "C" {
43#endif
44
54void ice_fpga_init(uint8_t freq_mhz);
55
61bool ice_fpga_start(void);
62
67void ice_fpga_stop(void);
68
69#ifdef __cplusplus
70}
71#endif
72
void ice_fpga_stop(void)
Set the ICE_FPGA_CRESET_B_PIN to LOW which keeps the FPGA in reset mode.
bool ice_fpga_start(void)
Release the stop mode if it was present, and wait that the FPGA confirms its startup with ICE_FPGA_CD...
void ice_fpga_init(uint8_t freq_mhz)
Let the FPGA start and export a clock for it over ICE_FPGA_CLOCK_PIN.