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LCD Driver, some teensy code, SDCard code, MBR/FAT32

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This commit is contained in:
FrankE
2021-02-11 20:08:25 +01:00
parent 3babe3f1ef
commit faf6e55bc5
19 changed files with 1679 additions and 25 deletions
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25
io/SoftSPI.h
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@@ -6,13 +6,18 @@
#include "../Debug.h"
#pragma GCC push_options
#pragma GCC optimize ("O2")
#pragma GCC optimize ("O3")
template <int PIN_MISO, int PIN_MOSI, int PIN_CLK, bool fast> class SoftSPI {
// NOTE: the last template argument has changed from "bool fast" to "int slowdown" where 0 is now fastest!
template <int PIN_MISO, int PIN_MOSI, int PIN_CLK, int SLOWDOWN> class SoftSPI {
static constexpr const char* NAME = "softSPI";
#ifndef BIT
#define BIT(x) (1<<x)
#endif
public:
/** ctor */
@@ -21,6 +26,7 @@ public:
}
private:
void init() {
debugMod3(NAME, "init() MISO:%d MOSI:%d CLK:%d", PIN_MISO, PIN_MOSI, PIN_CLK);
if (PIN_MISO) {MyGPIO::setInput(PIN_MISO);}
@@ -30,16 +36,15 @@ private:
private:
static inline void wait() {
if (!fast) {
for (int i = 0; i < 8; ++i) {
__asm__ __volatile__("nop");
}
for (int i = 0; i < SLOWDOWN; ++i) {
__asm__ __volatile__("nop");
}
}
inline void clkLo() { MyGPIO::clear(PIN_CLK); }
inline void clkHi() { MyGPIO::set(PIN_CLK); }
static inline void clkLo() { MyGPIO::clear(PIN_CLK); }
static inline void clkHi() { MyGPIO::set(PIN_CLK); }
/** write one bit to the bus */
inline void writeBit(const bool out) {
@@ -52,7 +57,7 @@ private:
}
/** read one bit from the bus */
inline uint8_t readBit() {
static inline uint8_t readBit() {
clkHi();
wait();
const bool val = MyGPIO::get(PIN_MISO);
@@ -62,7 +67,7 @@ private:
return (val) ? 1 : 0;
}
inline uint8_t readWriteBit(const bool out) {
static inline uint8_t readWriteBit(const bool out) {
if(out) {MyGPIO::set(PIN_MOSI);} else {MyGPIO::clear(PIN_MOSI);}
wait();
clkHi();