65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
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//
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// Gertboard test suite
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//
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// main header file
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//
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// Copyright (C) Gert Jan van Loo & Myra VanInwegen 2012
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// No rights reserved
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// You may treat this program as if it was in the public domain
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Try to strike a balance between keep code simple for
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// novice programmers but still have reasonable quality code
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// (e.g. do not use #ifndef big_demo_h....)
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//
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#include <stdio.h>
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// I/O access
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extern volatile unsigned *gpio;
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extern volatile unsigned *pwm;
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extern volatile unsigned *clk;
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extern volatile unsigned *spi0;
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extern volatile unsigned *uart;
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void short_wait();
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void long_wait(int v);
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void setup_io();
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void restore_io();
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void make_binary_string(int, int, char *);
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// GPIO setup macros.
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// Always use INP_GPIO(x) before using OUT_GPIO(x) or SET_GPIO_ALT(x,y)
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#define INP_GPIO(g) *(gpio+((g)/10)) &= ~(7<<(((g)%10)*3))
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#define OUT_GPIO(g) *(gpio+((g)/10)) |= (1<<(((g)%10)*3))
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#define SET_GPIO_ALT(g,a) *(gpio+(((g)/10))) |= (((a)<=3?(a)+4:(a)==4?3:2)<<(((g)%10)*3))
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#define GPIO_SET0 *(gpio+7) // Set GPIO high bits 0-31
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#define GPIO_CLR0 *(gpio+10) // Set GPIO low bits 0-31
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#define GPIO_IN0 *(gpio+13) // Reads GPIO input bits 0-31
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#define GPIO_PULL *(gpio+37) // Pull up/pull down
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#define GPIO_PULLCLK0 *(gpio+38) // Pull up/pull down clock
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//
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// UART 0
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//
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#define UART0_BAUD_HI *(uart+9)
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#define UART0_BAUD_LO *(uart+10)
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