Initial settings for the v1.2 ZuluSCSI board

lib/ZuluSCSI_platform_GD32F205/ZuluSCSI_platform.h

@@ -52,6 +52,14 @@ extern const char *g_platform_name;
 #   define PLATFORM_OPTIMAL_MAX_SD_WRITE_SIZE 65536
 #   define PLATFORM_OPTIMAL_LAST_SD_WRITE_SIZE 8192
 #   include "ZuluSCSI_v1_1_gpio.h"
+#elif defined(ZULUSCSI_V1_2)
+#   define PLATFORM_NAME "ZuluSCSI v1.2"
+#   define PLATFORM_REVISION "1.2"
+#   define PLATFORM_MAX_SCSI_SPEED S2S_CFG_SPEED_SYNC_10
+#   define PLATFORM_OPTIMAL_MIN_SD_WRITE_SIZE 4096
+#   define PLATFORM_OPTIMAL_MAX_SD_WRITE_SIZE 65536
+#   define PLATFORM_OPTIMAL_LAST_SD_WRITE_SIZE 8192
+#   include "ZuluSCSI_v1_2_gpio.h"
 #endif
 
 #ifndef PLATFORM_VDD_WARNING_LIMIT_mV

lib/ZuluSCSI_platform_GD32F205/ZuluSCSI_v1_2_gpio.h

@@ -0,0 +1,193 @@
+/** 
+ * ZuluSCSI™ - Copyright (c) 2022 Rabbit Hole Computing™
+ * 
+ * ZuluSCSI™ firmware is licensed under the GPL version 3 or any later version. 
+ * 
+ * https://www.gnu.org/licenses/gpl-3.0.html
+ * ----
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version. 
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details. 
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+**/
+
+// GPIO definitions for ZuluSCSI v1.2
+
+#pragma once
+
+// SCSI data output port.
+// The output data is written using BSRR mechanism, so all data pins must be on same GPIO port.
+// The output pins are open-drain in hardware, using separate buffer chips for driving.
+#define SCSI_OUT_PORT GPIOD
+#define SCSI_OUT_DB7  GPIO_PIN_9
+#define SCSI_OUT_DB6  GPIO_PIN_10
+#define SCSI_OUT_DB5  GPIO_PIN_11
+#define SCSI_OUT_DB4  GPIO_PIN_12
+#define SCSI_OUT_DB3  GPIO_PIN_13
+#define SCSI_OUT_DB2  GPIO_PIN_14
+#define SCSI_OUT_DB1  GPIO_PIN_0
+#define SCSI_OUT_DB0  GPIO_PIN_1
+#define SCSI_OUT_DBP  GPIO_PIN_8
+#define SCSI_OUT_REQ  GPIO_PIN_4
+#define SCSI_OUT_DATA_MASK (SCSI_OUT_DB0 | SCSI_OUT_DB1 | SCSI_OUT_DB2 | SCSI_OUT_DB3 | SCSI_OUT_DB4 | SCSI_OUT_DB5 | SCSI_OUT_DB6 | SCSI_OUT_DB7 | SCSI_OUT_DBP)
+#define SCSI_OUT_REQ_IDX 4
+
+// Control signals to optional PLD device
+#define SCSI_OUT_PLD1 GPIO_PIN_15
+#define SCSI_OUT_PLD2 GPIO_PIN_3
+#define SCSI_OUT_PLD3 GPIO_PIN_5
+#define SCSI_OUT_PLD4 GPIO_PIN_7
+
+// Control signals for timer based DMA acceleration
+#define SCSI_TIMER TIMER7
+#define SCSI_TIMER_RCU RCU_TIMER7
+#define SCSI_TIMER_OUT_PORT GPIOB
+#define SCSI_TIMER_OUT_PIN GPIO_PIN_1
+#define SCSI_TIMER_IN_PORT GPIOC
+#define SCSI_TIMER_IN_PIN GPIO_PIN_6
+#define SCSI_TIMER_DMA DMA1
+#define SCSI_TIMER_DMA_RCU RCU_DMA1
+#define SCSI_TIMER_DMACHA DMA_CH4
+#define SCSI_TIMER_DMACHB DMA_CH1
+#define SCSI_TIMER_DMACHA_IRQ DMA1_Channel4_IRQHandler
+#define SCSI_TIMER_DMACHA_IRQn DMA1_Channel4_IRQn
+#define SCSI_TIMER_DMACHB_IRQ DMA1_Channel1_IRQHandler
+#define SCSI_TIMER_DMACHB_IRQn DMA1_Channel1_IRQn
+
+// GreenPAK logic chip pins
+#define GREENPAK_I2C_ADDR 0x10
+#define GREENPAK_I2C_PORT GPIOB
+#define GREENPAK_I2C_SCL GPIO_PIN_8
+#define GREENPAK_I2C_SDA GPIO_PIN_9
+#define GREENPAK_PLD_IO1 GPIO_PIN_15
+#define GREENPAK_PLD_IO2 GPIO_PIN_3
+#define GREENPAK_PLD_IO3 GPIO_PIN_5
+#define GREENPAK_PLD_IO4 GPIO_PIN_7
+#define GREENPAK_PLD_IO2_EXTI EXTI_3
+#define GREENPAK_PLD_IO2_EXTI_SOURCE_PORT GPIO_PORT_SOURCE_GPIOD
+#define GREENPAK_PLD_IO2_EXTI_SOURCE_PIN  GPIO_PIN_SOURCE_3
+#define GREENPAK_IRQ  EXTI3_IRQHandler
+#define GREENPAK_IRQn EXTI3_IRQn
+
+// SCSI input data port
+#define SCSI_IN_PORT  GPIOE
+#define SCSI_IN_DB7   GPIO_PIN_15
+#define SCSI_IN_DB6   GPIO_PIN_14
+#define SCSI_IN_DB5   GPIO_PIN_13
+#define SCSI_IN_DB4   GPIO_PIN_12
+#define SCSI_IN_DB3   GPIO_PIN_11
+#define SCSI_IN_DB2   GPIO_PIN_10
+#define SCSI_IN_DB1   GPIO_PIN_9
+#define SCSI_IN_DB0   GPIO_PIN_8
+#define SCSI_IN_DBP   GPIO_PIN_7
+#define SCSI_IN_MASK  (SCSI_IN_DB7|SCSI_IN_DB6|SCSI_IN_DB5|SCSI_IN_DB4|SCSI_IN_DB3|SCSI_IN_DB2|SCSI_IN_DB1|SCSI_IN_DB0|SCSI_IN_DBP)
+#define SCSI_IN_SHIFT 8
+
+// SCSI output status lines
+#define SCSI_OUT_IO_PORT  GPIOA
+#define SCSI_OUT_IO_PIN   GPIO_PIN_4
+#define SCSI_OUT_CD_PORT  GPIOA
+#define SCSI_OUT_CD_PIN   GPIO_PIN_5
+#define SCSI_OUT_SEL_PORT GPIOA
+#define SCSI_OUT_SEL_PIN  GPIO_PIN_6
+#define SCSI_OUT_MSG_PORT GPIOA
+#define SCSI_OUT_MSG_PIN  GPIO_PIN_7
+#define SCSI_OUT_RST_PORT GPIOB
+#define SCSI_OUT_RST_PIN  GPIO_PIN_14
+#define SCSI_OUT_BSY_PORT GPIOB
+#define SCSI_OUT_BSY_PIN  GPIO_PIN_15
+#define SCSI_OUT_REQ_PORT SCSI_OUT_PORT
+#define SCSI_OUT_REQ_PIN  SCSI_OUT_REQ
+
+// SCSI input status signals
+#define SCSI_ACK_PORT GPIOA
+#define SCSI_ACK_PIN  GPIO_PIN_0
+#define SCSI_ATN_PORT GPIOB
+#define SCSI_ATN_PIN  GPIO_PIN_12
+#define SCSI_IN_ACK_IDX 0
+
+// Extra signals used with EXMC for synchronous mode
+#define SCSI_IN_ACK_EXMC_NWAIT_PORT GPIOD
+#define SCSI_IN_ACK_EXMC_NWAIT_PIN  GPIO_PIN_6
+#define SCSI_OUT_REQ_EXMC_NOE_PORT  GPIOD
+#define SCSI_OUT_REQ_EXMC_NOE_PIN   GPIO_PIN_4
+#define SCSI_OUT_REQ_EXMC_NOE_IDX   4
+#define SCSI_EXMC_DATA_SHIFT 5
+#define SCSI_EXMC_DMA DMA0
+#define SCSI_EXMC_DMA_RCU RCU_DMA0
+#define SCSI_EXMC_DMACH DMA_CH0
+#define SCSI_SYNC_TIMER TIMER1
+#define SCSI_SYNC_TIMER_RCU RCU_TIMER1
+
+// SEL pin uses EXTI interrupt
+#define SCSI_SEL_PORT GPIOB
+#define SCSI_SEL_PIN  GPIO_PIN_11
+#define SCSI_SEL_EXTI EXTI_11
+#define SCSI_SEL_EXTI_SOURCE_PORT GPIO_PORT_SOURCE_GPIOB
+#define SCSI_SEL_EXTI_SOURCE_PIN GPIO_PIN_SOURCE_11
+#define SCSI_SEL_IRQ EXTI10_15_IRQHandler
+#define SCSI_SEL_IRQn EXTI10_15_IRQn
+
+// BSY pin uses EXTI interrupt
+#define SCSI_BSY_PORT GPIOB
+#define SCSI_BSY_PIN  GPIO_PIN_10
+#define SCSI_BSY_EXTI EXTI_10
+#define SCSI_BSY_EXTI_SOURCE_PORT GPIO_PORT_SOURCE_GPIOB
+#define SCSI_BSY_EXTI_SOURCE_PIN  GPIO_PIN_SOURCE_10
+#define SCSI_BSY_IRQ  EXTI10_15_IRQHandler
+#define SCSI_BSY_IRQn EXTI10_15_IRQn
+
+// RST pin uses EXTI interrupt
+#define SCSI_RST_PORT GPIOB
+#define SCSI_RST_PIN  GPIO_PIN_13
+#define SCSI_RST_EXTI EXTI_13
+#define SCSI_RST_EXTI_SOURCE_PORT GPIO_PORT_SOURCE_GPIOB
+#define SCSI_RST_EXTI_SOURCE_PIN GPIO_PIN_SOURCE_13
+#define SCSI_RST_IRQ  EXTI10_15_IRQHandler
+#define SCSI_RST_IRQn EXTI10_15_IRQn
+
+// Terminator enable/disable config, active low
+#define SCSI_TERM_EN_PORT GPIOB
+#define SCSI_TERM_EN_PIN  GPIO_PIN_0
+
+// SD card pins
+#define SD_USE_SDIO 1
+#define SD_SDIO_DATA_PORT GPIOC
+#define SD_SDIO_D0        GPIO_PIN_8
+#define SD_SDIO_D1        GPIO_PIN_9
+#define SD_SDIO_D2        GPIO_PIN_10
+#define SD_SDIO_D3        GPIO_PIN_11
+#define SD_SDIO_CLK_PORT  GPIOC
+#define SD_SDIO_CLK       GPIO_PIN_12
+#define SD_SDIO_CMD_PORT  GPIOD
+#define SD_SDIO_CMD       GPIO_PIN_2
+
+// DIP switches
+#define DIP_PORT     GPIOB
+#define DIPSW1_PIN   GPIO_PIN_4
+#define DIPSW2_PIN   GPIO_PIN_5
+#define DIPSW3_PIN   GPIO_PIN_6
+
+// Status LED pins
+#define LED_PORT     GPIOC
+#define LED_I_PIN    GPIO_PIN_4
+#define LED_E_PIN    GPIO_PIN_5
+#define LED_PINS     (LED_I_PIN | LED_E_PIN)
+#define LED_ON()     gpio_bit_reset(LED_PORT, LED_PINS)
+#define LED_OFF()    gpio_bit_set(LED_PORT, LED_PINS)
+
+// Ejection buttons are available on expansion header J303.
+// PE5 = channel 1, PE6 = channel 2
+// Connect button between GPIO and GND pin.
+#define EJECT_1_PORT    GPIOE
+#define EJECT_1_PIN     GPIO_PIN_5
+#define EJECT_2_PORT    GPIOE
+#define EJECT_2_PIN     GPIO_PIN_6

platformio.ini

@@ -1,7 +1,7 @@
 ; PlatformIO Project Configuration File https://docs.platformio.org/page/projectconf.html
 
 [platformio]
-default_envs = ZuluSCSIv1_0, ZuluSCSIv1_0_mini, ZuluSCSIv1_1, ZuluSCSI_RP2040, ZuluSCSI_RP2040_Audio, ZuluSCSI_Pico, ZuluSCSI_BS2
+default_envs = ZuluSCSIv1_2
 
 ; Example platform to serve as a base for porting efforts
 [env:template]
@@ -76,6 +76,18 @@ build_flags =
      -DHAS_SDIO_CLASS
      -DZULUSCSI_V1_1
 
+; ZuluSCSI V1.2 hardware platform, similar to V1.0 hardware but customized for removable devices.
+[env:ZuluSCSIv1_2]
+extends = env:ZuluSCSIv1_0
+build_flags = 
+     -Os -Wall -Wno-sign-compare -ggdb -g3 -Isrc
+     -D__SYSTEM_CLOCK_120M_PLL_IRC8M=120000000
+     -DSPI_DRIVER_SELECT=3
+     -DSD_CHIP_SELECT_MODE=2
+     -DENABLE_DEDICATED_SPI=1
+     -DHAS_SDIO_CLASS
+     -DZULUSCSI_V1_2
+
 ; ZuluSCSI RP2040 hardware platform, based on the Raspberry Pi foundation RP2040 microcontroller
 [env:ZuluSCSI_RP2040]
 platform = raspberrypi@1.9.0

src/ZuluSCSI_config.h

@@ -27,8 +27,8 @@
 #include <ZuluSCSI_platform.h>
 
 // Use variables for version number
-#define FW_VER_NUM      "23.09.21"
-#define FW_VER_SUFFIX   "devel"
+#define FW_VER_NUM      "23.09.25"
+#define FW_VER_SUFFIX   "dev-v1.2"
 #define ZULU_FW_VERSION FW_VER_NUM "-" FW_VER_SUFFIX
 
 // Configuration and log file paths