mirror of
https://github.com/garrettsworkshop/GWRAM.SYSTEM.git
synced 2024-06-05 07:29:30 +00:00
Revert "Add commands for RAM2GS with AGM CPLD"
This reverts commit c93999003d
.
This commit is contained in:
parent
c93999003d
commit
ac1d41f282
BIN
bin/GWRAM.dbg.po
BIN
bin/GWRAM.dbg.po
Binary file not shown.
BIN
bin/GWRAM.po
BIN
bin/GWRAM.po
Binary file not shown.
65
ram2gs.c
65
ram2gs.c
|
@ -9,14 +9,11 @@
|
|||
#include "gwconio.h"
|
||||
#include "ram2gs_asm.h"
|
||||
|
||||
// Commands common to Altera and AGM
|
||||
static void ram2gs_erase() { ram2gs_cmd(0x28); }
|
||||
static void ram2gs_program() { ram2gs_cmd(0x24); }
|
||||
static void ram2gs_set4mb() { ram2gs_cmd(0x10); }
|
||||
static void ram2gs_set8mb() { ram2gs_cmd(0x11); }
|
||||
|
||||
// Commands for just altera
|
||||
static void ram2gs_altera_erase() { ram2gs_cmd(0x28); }
|
||||
static void ram2gs_altera_program() { ram2gs_cmd(0x24); }
|
||||
static void ram2gs_altera_setnvm(char en8meg) {
|
||||
static void ram2gs_setnvm(char en8meg) {
|
||||
char i;
|
||||
// Clock in 0 to enable this setting entry
|
||||
ram2gs_cmd(0x20);
|
||||
|
@ -38,44 +35,7 @@ static void ram2gs_altera_setnvm(char en8meg) {
|
|||
ram2gs_cmd(0x23);
|
||||
}
|
||||
|
||||
ram2gs_altera_program();
|
||||
}
|
||||
|
||||
// Commands for just AGM
|
||||
static void ram2gs_agm_select() { ram2gs_cmd(0x34); }
|
||||
static void ram2gs_agm_deselect() { ram2gs_cmd(0x30); }
|
||||
static void ram2gs_agm_tx8(char data) {
|
||||
char i;
|
||||
for (i = 0; i < 8; i++) {
|
||||
ram2gs_cmd(0x34 + ((data >> (7-i)) & 1));
|
||||
ram2gs_cmd(0x36 + ((data >> (7-i)) & 1));
|
||||
}
|
||||
}
|
||||
static void ram2gs_agm_write_en() {
|
||||
ram2gs_agm_deselect();
|
||||
ram2gs_agm_select();
|
||||
ram2gs_agm_tx8(0x06); // 0x06 is write enable
|
||||
ram2gs_agm_deselect();
|
||||
}
|
||||
static void ram2gs_agm_erase() {
|
||||
ram2gs_agm_write_en();
|
||||
ram2gs_agm_select();
|
||||
ram2gs_agm_tx8(0x20); // 0x20 is sector erase (4 kB)
|
||||
ram2gs_agm_tx8(0x00); // address[23:16]
|
||||
ram2gs_agm_tx8(0x10); // address[15:8]
|
||||
ram2gs_agm_tx8(0x00); // address[7:0]
|
||||
ram2gs_agm_deselect();
|
||||
}
|
||||
static void ram2gs_agm_write_nvm(char en8meg) {
|
||||
ram2gs_agm_write_en();
|
||||
ram2gs_agm_select();
|
||||
ram2gs_agm_tx8(0x02); // 0x02 is page (byte) program
|
||||
ram2gs_agm_tx8(0x00); // address[23:16]
|
||||
ram2gs_agm_tx8(0x10); // address[15:8]
|
||||
ram2gs_agm_tx8(0x00); // address[7:0]
|
||||
if (en8meg) { ram2gs_agm_tx8(0xFF); } // data[7:0]
|
||||
else { ram2gs_agm_tx8(0x00); } // data[7:0]
|
||||
ram2gs_agm_deselect();
|
||||
ram2gs_program();
|
||||
}
|
||||
|
||||
static void menu(void)
|
||||
|
@ -142,11 +102,11 @@ int ram2gs_main(void)
|
|||
gwcputsxy(1, 8, "Resetting RAM2GS settings.");
|
||||
gwcputsxy(1, 9, "Do not turn off your Apple.");
|
||||
|
||||
// Erase RAM2GS settings memory
|
||||
ram2gs_altera_erase(); // Erase for Altera CPLD
|
||||
ram2gs_agm_erase(); // Erase for AGM CPLD
|
||||
spin(32, 8); // Wait for >= 500ms on even the fastest systems.
|
||||
ram2gs_set8mb(); // Enable 8 megabytes now (default)
|
||||
ram2gs_erase(); // Erase RAM2GS settings memory
|
||||
ram2gs_set8mb(); // Enable 8 megabytes now
|
||||
|
||||
// Wait for >= 500ms on even the fastest systems.
|
||||
spin(32, 8);
|
||||
|
||||
// Show success message and quit
|
||||
clrscr(); // Clear screen
|
||||
|
@ -170,10 +130,9 @@ int ram2gs_main(void)
|
|||
gwcputsxy(1, 8, "Saving RAM2GS capacity setting.");
|
||||
gwcputsxy(1, 9, "Do not turn off your Apple.");
|
||||
// Save capacity in nonvolatile memory.
|
||||
ram2gs_altera_setnvm(en8meg); // Save for Altera CPLD
|
||||
ram2gs_agm_erase(); // Erase for AGM CPLD
|
||||
spin(33, 8); // Wait for >= 500ms on even the fastest systems.
|
||||
ram2gs_agm_write_nvm(en8meg); // Write for AGM CPLD
|
||||
ram2gs_setnvm(en8meg);
|
||||
// Wait for >= 500ms on even the fastest systems.
|
||||
spin(33, 8);
|
||||
// Print success message
|
||||
clrscr(); // Clear screen
|
||||
gwcputsxy(1, 8, "RAM2GS capacity saved successfully.");
|
||||
|
|
Loading…
Reference in New Issue
Block a user