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r65emu
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change initialisation a bit

This commit is contained in:
Stephen Crane 2014-11-02 17:34:19 +00:00
parent e0633e6450
commit 0c87474d58
4 changed files with 29 additions and 25 deletions
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19
hardware.cpp
View File

@ -1,5 +1,7 @@
#include <UTFT.h>
#include <SPI.h>
#include <SD.h>
#include <SpiRAM.h>
#include "ps2drv.h"
#include "memory.h"
@ -15,8 +17,15 @@ UTFT utft(TFT_MODEL, TFT_RS, TFT_WR, TFT_CS, TFT_RST);
static CPU *_cpu;
bool hardware_reset() {
bool sd = SD.begin(SD_CS, 3, SD_SPI);
extern SPIClass SPIRAM_DEV;
SPIRAM_DEV.begin();
SPIRAM_DEV.setModule(SPIRAM_SPI);
SPIRAM_DEV.setClockDivider(SPI_CLOCK_DIV8);
SPIRAM_DEV.setDataMode(SPI_MODE0);
bool sd = SD.begin(SD_CS, 2, SD_SPI);
pinMode(SPI_CS, OUTPUT); // without this, the SPI-RAM isn't seen
#if defined(TFT_BACKLIGHT)
digitalWrite(TFT_BACKLIGHT, HIGH);
#endif
@ -24,8 +33,6 @@ bool hardware_reset() {
extern uint8_t SmallFont[];
utft.setFont(SmallFont);
sram.begin(SPIRAM_CS, SPIRAM_SPI);
_cpu->reset();
return sd;
}
@ -34,10 +41,14 @@ void hardware_init(CPU &cpu) {
_cpu = &cpu;
memory.begin();
ps2.begin(KBD_DATA, KBD_IRQ);
pinMode(SD_CS, OUTPUT);
#if defined(TFT_BACKLIGHT)
pinMode(TFT_BACKLIGHT, OUTPUT);
#endif
pinMode(SD_CS, OUTPUT);
digitalWrite(SD_CS, HIGH);
pinMode(SPIRAM_CS, OUTPUT);
digitalWrite(SPIRAM_CS, HIGH);
}
void hardware_checkpoint(Stream &s) {

20
hardware.h
View File

@ -18,24 +18,28 @@
#define TFT_CS PC_7
#define TFT_RST PC_4
// SPI-RAM
#define SPIRAM_CS PE_0
#define SPIRAM_SPI 1
#define SPIRAM_DEV SPI_for_SD
#define SPIRAM_SIZE 32768
// PS/2 keyboard
#define KBD_DATA PE_4
#define KBD_IRQ PE_5
// SPI-RAM
#define SPIRAM_CS PE_0
//#define SPIRAM_CS PF_3
#define SPIRAM_SPI 1
#define SPIRAM_DEV SPI_for_SD
#define SPIRAM_SIZE 32768
// "tape" storage...
#define SD_CS PF_3
//#define SD_CS PE_0
#define SD_SPI 1
#define SPI_CS PF_3
bool hardware_reset();
void hardware_init(class CPU &);
void hardware_checkpoint(Stream &); // FIXME: make a path?
void hardware_restore(Stream &);
void hardware_checkpoint(class Stream &);
void hardware_restore(class Stream &);
extern class PS2Driver ps2;
extern class spiram sram;

6
sdtape.cpp
View File

@ -19,10 +19,8 @@ bool sdtape::more()
_pos = 0;
_len = file.read(_buf, sizeof(_buf));
if (_len == 0) {
file.close();
return false; // eof
}
if (_len == 0) // eof
return false;
}
return true;
}

9
spiram.cpp
View File

@ -8,15 +8,6 @@ extern SPIClass SPIRAM_DEV;
SpiRAM spiRam(SPIRAM_DEV, SPIRAM_CS);
void spiram::begin(byte cs, int module)
{
SPI_for_SD.setModule(module);
SPI_for_SD.setClockDivider(SPI_CLOCK_DIV16);
SPI_for_SD.setDataMode(SPI_MODE0);
pinMode(PF_3, OUTPUT);
pinMode(cs, OUTPUT);
}
void spiram::operator=(byte b)
{
spiRam.write_byte(_acc, b);