42 lines
851 B
C
42 lines
851 B
C
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#include <wiringPi.h>
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#include <wiringPiSPI.h>
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#include <stdint.h>
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#include "LS7366R.h"
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void ls7366rWriteCmd(uint8_t c) {
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uint8_t buf[1];
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buf[0] = c;
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wiringPiSPIDataRW(SPI_CHAN, buf, 1);
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}
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void ls7366rWriteCmdData(uint8_t c, uint8_t d) {
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uint8_t buf[2];
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buf[0] = c;
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buf[1] = d;
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wiringPiSPIDataRW(SPI_CHAN, buf, 2);
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}
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uint8_t ls7366rRead8(uint8_t c) {
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uint8_t buf[2];
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buf[0] = c;
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wiringPiSPIDataRW(SPI_CHAN, buf, 2);
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return buf[1];
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}
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uint32_t ls7366rRead32(uint8_t c) {
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uint8_t buf[5];
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buf[0] = c;
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wiringPiSPIDataRW(SPI_CHAN, buf, 5);
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uint32_t r = ((uint32_t)buf[1] << 24) | ((uint32_t)buf[2] << 16) | ((uint32_t)buf[3] << 8) | ((uint32_t)buf[4]);
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return r;
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}
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void ls7366rInit() {
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ls7366rWriteCmd(CMD_CLR | REG_STR);
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ls7366rWriteCmd(CMD_CLR | REG_CNTR);
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ls7366rWriteCmdData(CMD_WR | REG_MDR0, MDR0_ILO);
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}
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