Zack Buhman
dcb9f36120
Notably missing is: - BSC (PDTRA / PCTRA) This also updates a handful of files to use the new sh7091_bits.hpp.
62 lines
1.1 KiB
C++
62 lines
1.1 KiB
C++
#include <cstdint>
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#include "sh7091.hpp"
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#include "sh7091_bits.hpp"
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#include "string.hpp"
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namespace serial {
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void init()
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{
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sh7091.SCIF.SCSCR2 = 0;
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sh7091.SCIF.SCSMR2 = 0;
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sh7091.SCIF.SCBRR2 = 1; // 520833.3
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sh7091.SCIF.SCFCR2 = SCFCR2__TFRST | SCFCR2__RFRST;
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// tx/rx trigger on 1 byte
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sh7091.SCIF.SCFCR2 = 0;
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sh7091.SCIF.SCSPTR2 = 0;
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sh7091.SCIF.SCLSR2 = 0;
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sh7091.SCIF.SCSCR2 = SCSCR2__TE | SCSCR2__RE;
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}
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void character(const char c)
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{
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// wait for transmit fifo to become empty
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while ((sh7091.SCIF.SCFSR2 & SCFSR2__TDFE) == 0);
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for (int i = 0; i < 100000; i++) {
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asm volatile ("nop;");
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}
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sh7091.SCIF.SCFTDR2 = static_cast<uint8_t>(c);
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}
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void string(const char * s)
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{
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while (*s != '\0') {
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character(*s++);
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}
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}
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template <typename T>
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void integer(const T n)
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{
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constexpr uint32_t length = (sizeof (T)) * 2;
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char num_buf[length + 1];
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string::hex<char>(num_buf, length, n);
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num_buf[length] = 0;
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string("0x");
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string(num_buf);
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string("\n");
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}
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template void integer<uint32_t>(uint32_t param);
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template void integer<uint16_t>(uint16_t param);
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template void integer<uint8_t>(uint8_t param);
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}
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