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fixed fast PI read, added PI R/W fifo debug info

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Polprzewodnikowy 2022-09-29 00:06:21 +02:00
parent 2e4fd2b200
commit 0a06fd26a5
7 changed files with 60 additions and 18 deletions
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10
fw/rtl/mcu/mcu_top.sv
View File

@ -355,7 +355,8 @@ module mcu_top (
REG_DD_SECTOR_INFO,
REG_DD_DRIVE_ID,
REG_VENDOR_SCR,
REG_VENDOR_DATA
REG_VENDOR_DATA,
REG_DEBUG
} reg_address_e;
logic bootloader_skip;
@ -627,6 +628,13 @@ module mcu_top (
REG_VENDOR_DATA: begin
reg_rdata <= vendor_scb.data_rdata;
end
REG_DEBUG: begin
reg_rdata <= {
28'd0,
n64_scb.pi_debug
};
end
endcase
end
end

22
fw/rtl/n64/n64_pi.sv
View File

@ -250,7 +250,6 @@ module n64_pi (
logic [15:0] read_fifo_rdata;
logic read_fifo_wait;
logic [15:0] read_fifo_buffer;
n64_pi_fifo read_fifo_inst (
.clk(clk),
@ -269,7 +268,10 @@ module n64_pi (
always_ff @(posedge clk) begin
read_fifo_read <= 1'b0;
read_fifo_buffer <= read_fifo_rdata;
if (reset) begin
n64_scb.pi_debug[1:0] <= 2'b00;
end
if (reset || !pi_reset || alel_op) begin
read_fifo_wait <= 1'b0;
@ -279,16 +281,20 @@ module n64_pi (
if (read_op) begin
if (read_fifo_empty) begin
read_fifo_wait <= 1'b1;
n64_scb.pi_debug[0] <= 1'b1;
if (read_fifo_wait) begin
n64_scb.pi_debug[1] <= 1'b1;
end
end else begin
read_fifo_read <= 1'b1;
n64_pi_dq_out <= read_fifo_buffer;
n64_pi_dq_out <= read_fifo_rdata;
end
end
if (!read_fifo_empty && read_fifo_wait) begin
read_fifo_read <= 1'b1;
read_fifo_wait <= 1'b0;
n64_pi_dq_out <= read_fifo_buffer;
n64_pi_dq_out <= read_fifo_rdata;
end
end
@ -330,6 +336,10 @@ module n64_pi (
always_ff @(posedge clk) begin
write_fifo_write <= 1'b0;
if (reset) begin
n64_scb.pi_debug[3:2] <= 2'b00;
end
if (reset) begin
write_fifo_wait <= 1'b0;
end
@ -338,6 +348,10 @@ module n64_pi (
if (write_op) begin
if (write_fifo_full) begin
write_fifo_wait <= 1'b1;
n64_scb.pi_debug[2] <= 1'b1;
if (write_fifo_wait) begin
n64_scb.pi_debug[3] <= 1'b1;
end
end else begin
write_fifo_write <= 1'b1;
write_fifo_wdata <= n64_pi_dq_in;

10
fw/rtl/n64/n64_scb.sv
View File

@ -51,6 +51,8 @@ interface n64_scb ();
logic [31:0] cfg_wdata [0:1];
logic [31:0] cfg_version;
logic [3:0] pi_debug;
modport controller (
input n64_reset,
input n64_nmi,
@ -86,7 +88,9 @@ interface n64_scb ();
input cfg_cmd,
input cfg_rdata,
output cfg_wdata,
output cfg_version
output cfg_version,
input pi_debug
);
modport pi (
@ -105,7 +109,9 @@ interface n64_scb ();
input flashram_read_mode,
input cfg_unlock
input cfg_unlock,
output pi_debug
);
modport flashram (

4
sw/controller/src/cfg.c
View File

@ -519,6 +519,10 @@ void cfg_process (void) {
dd_set_sd_disk_info(args[0], args[1]);
break;
case '?':
args[0] = fpga_reg_get(REG_DEBUG);
break;
default:
cfg_set_error(CFG_ERROR_UNKNOWN_CMD);
return;

3
sw/controller/src/fpga.h
View File

@ -51,7 +51,8 @@ typedef enum {
REG_DD_SECTOR_INFO,
REG_DD_DRIVE_ID,
REG_VENDOR_SCR,
REG_VENDOR_DATA
REG_VENDOR_DATA,
REG_DEBUG
} fpga_reg_t;

7
sw/controller/src/usb.c
View File

@ -275,6 +275,13 @@ static void usb_rx_process (void) {
}
break;
case '?':
p.rx_state = RX_STATE_IDLE;
p.response_pending = true;
p.response_info.data_length = 4;
p.response_info.data[0] = fpga_reg_get(REG_DEBUG);
break;
default:
p.rx_state = RX_STATE_IDLE;
p.response_pending = true;

22
sw/pc/sc64.py
View File

@ -193,6 +193,7 @@ class SC64Serial:
class SC64:
class __Address(IntEnum):
MEMORY = 0x0000_0000
SDRAM = 0x0000_0000
FLASH = 0x0400_0000
BUFFER = 0x0500_0000
@ -205,6 +206,7 @@ class SC64:
SHADOW = 0x04FE_0000
class __Length(IntEnum):
MEMORY = 0x0500_2980
SDRAM = (64 * 1024 * 1024)
FLASH = (16 * 1024 * 1024)
BUFFER = (8 * 1024)
@ -390,7 +392,7 @@ class SC64:
self.__link.execute_cmd(cmd=b'U', args=[datatype, len(data)], data=data, response=False)
def download_memory(self) -> bytes:
return self.__read_memory(self.__Address.SDRAM, self.__Length.SDRAM + self.__Length.FLASH)
return self.__read_memory(self.__Address.MEMORY, self.__Length.MEMORY)
def upload_rom(self, data: bytes, use_shadow: bool=True) -> None:
rom_length = len(data)
@ -711,8 +713,9 @@ class EnumAction(argparse.Action):
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='SC64 control software')
parser.add_argument('--backup-firmware', help='backup SC64 firmware and write it to specified file')
parser.add_argument('--update-firmware', help='update SC64 firmware from specified file')
parser.add_argument('--backup-firmware', metavar='file', help='backup SC64 firmware and write it to specified file')
parser.add_argument('--update-firmware', metavar='file', help='update SC64 firmware from specified file')
parser.add_argument('--bootloader', metavar='file', help='update SC64 bootloader (not recommended, use --update-firmware instead)')
parser.add_argument('--reset-state', action='store_true', help='reset SC64 internal state')
parser.add_argument('--print-state', action='store_true', help='print SC64 internal state')
parser.add_argument('--boot', type=SC64.BootMode, action=EnumAction, help='set boot mode')
@ -720,16 +723,15 @@ if __name__ == '__main__':
parser.add_argument('--cic', type=SC64.CICSeed, action=EnumAction, help='force CIC seed to set value')
parser.add_argument('--rtc', action='store_true', help='update clock in SC64 to system time')
parser.add_argument('--no-shadow', action='store_false', help='do not put last 128 kB of ROM inside flash memory (can corrupt non EEPROM saves)')
parser.add_argument('--rom', help='upload ROM from specified file')
parser.add_argument('--rom', metavar='file', help='upload ROM from specified file')
parser.add_argument('--save-type', type=SC64.SaveType, action=EnumAction, help='set save type')
parser.add_argument('--save', help='upload save from specified file')
parser.add_argument('--backup-save', help='download save and write it to specified file')
parser.add_argument('--ddipl', help='upload 64DD IPL from specified file')
parser.add_argument('--disk', action='append', help='path to 64DD disk (.ndd format), can be specified multiple times')
parser.add_argument('--save', metavar='file', help='upload save from specified file')
parser.add_argument('--backup-save', metavar='file', help='download save and write it to specified file')
parser.add_argument('--ddipl', metavar='file', help='upload 64DD IPL from specified file')
parser.add_argument('--disk', metavar='file', action='append', help='path to 64DD disk (.ndd format), can be specified multiple times')
parser.add_argument('--isv', action='store_true', help='enable IS-Viewer64 support')
parser.add_argument('--debug', action='store_true', help='run debug loop (required for 64DD and IS-Viewer64)')
parser.add_argument('--download-memory', help='download whole memory space and write it to specified file')
parser.add_argument('--bootloader', help='bootloader')
parser.add_argument('--download-memory', metavar='file', help='download whole memory space and write it to specified file')
if (len(sys.argv) <= 1):
parser.print_help()