52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/** library to drive vacuum fluorescent display using supertex HV518 shift register VFD drivers (API)
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* @details the current configuration is for a VFD extracted from a Samsung SER-6500 cash register
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* @file vfd_hv518.h
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* @author King Kévin <kingkevin@cuvoodoo.info>
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* @date 2016
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* @note peripherals used: USART @ref usart
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*/
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/** number HV518 VFD drivers */
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#define VFD_DRIVERS 3
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/** number of digits blocks on SER-6500 VFD */
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#define VFD_DIGITS 10
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/** number of dot matrix blocks on SER-6500 VFD */
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#define VFD_MATRIX 12
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/** set character to digit block
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* @param[in] nb digit block to set
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* @param[in] c ASCII character to set
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* @note use the MSB of @p nb to enable the dot
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*/
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void vfd_digit(uint8_t nb, char c);
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/** set character to matrix block
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* @param[in] nb matrix block to set
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* @param[in] c ASCII character to set
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* @note on ASCII characters are used for pictures
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*/
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void vfd_matrix(uint8_t nb, char c);
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/** clear VFD display */
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void vfd_clear(void);
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/** test VFD display (light up all segments) */
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void vfd_test(void);
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/** switch VFD on */
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void vfd_on(void);
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/** switch VFD display off */
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void vfd_off(void);
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/** setup VFD */
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void vfd_setup(void);
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