102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
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//
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//
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// Gertboard test suite
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//
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// These program works the open collector
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//
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//
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// This file is part of gertboard test suite.
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//
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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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//
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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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//
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#include "gb_common.h"
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// open colloector test GPIO mapping:
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// Function Mode
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// GPIO0= unused
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// GPIO1= unused
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// GPIO4= open collector Output
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// GPIO7= unused
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// GPIO8= unused
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// GPIO9= unused
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// GPIO10= unused
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// GPIO11= unused
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// GPIO14= unused (preset to be UART)
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// GPIO15= unused (preset to be UART)
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// GPIO17= unused
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// GPIO18= unused
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// GPIO21= unused
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// GPIO22= unused
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// GPIO23= unused
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// GPIO24= unused
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// GPIO25= unused
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void setup_gpio(void)
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{
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INP_GPIO(4); OUT_GPIO(4);
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} // setup_gpio
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//
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// send on/off signals to GPIO4 - it's the wiring on and off the board
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// that makes interesting things happen
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//
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int main(void)
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{ int p,r,last, chan;
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do {
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printf ("Which driver do you want to test?\n");
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printf ("Type a number between 1 and 6.\n");
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chan = (int) getchar();
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(void) getchar(); // eat carriage return
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} while (chan < '1' | chan > '6');
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chan = chan - '0';
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printf ("These are the connections for the open collector test:\n");
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printf ("GP4 in J2 --- RLY%d in J4\n", chan);
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printf ("+ of external power source --- RPWR in J6\n");
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printf ("ground of external power source --- GND (any)\n");
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printf ("ground side of your circuit --- RLY%d in J%d\n", chan, chan + 11);
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printf ("When ready hit enter.\n");
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(void) getchar();
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// Map the I/O sections
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setup_io();
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// Set GPIO4 pin to output mode
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setup_gpio();
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for (p = 0; p < 10; p++) {
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GPIO_SET0 = 1 << 4;
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long_wait(10);
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GPIO_CLR0 = 1 << 4;
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long_wait(10);
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}
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restore_io();
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} // main
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