--- /dev/null
+/*
+ * Copyright © 2023 Keith Packard <keithp@keithp.com>
+ *
+ * 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 2 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, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+#define AO_HSE 1
+#define AO_HSE_BYPASS 1
+
+#define AO_SYSCLK 72000000
+#define AO_HCLK 72000000
+#define AO_APB1CLK 36000000
+#define AO_APB2CLK 72000000
+#define AO_ADCCLK 12000000
+
+#define AO_RCC_CFGR_USBPRE STM_RCC_CFGR_USBPRE_1_5
+#define AO_RCC_CFGR_PLLMUL STM_RCC_CFGR_PLLMUL_9
+#define AO_RCC_CFGR_PLLXTPRE STM_RCC_CFGR_PLLXTPRE_1
+#define AO_RCC_CFGR_PPRE2_DIV STM_RCC_CFGR_PPRE2_DIV_1
+#define AO_RCC_CFGR_PPRE1_DIV STM_RCC_CFGR_PPRE1_DIV_2
+#define AO_RCC_CFGR_HPRE_DIV STM_RCC_CFGR_HPRE_DIV_1
+#define AO_RCC_CFGR_ADCPRE STM_RCC_CFGR_ADCPRE_6
+
+#define HAS_BEEP 0
+#define HAS_USB 1
+
+#define HAS_USB_PULLUP 1
+#define AO_USB_PULLUP_PORT (&stm_gpiob)
+#define AO_USB_PULLUP_PIN 12
+
+#define HAS_LED 1
+#define LED_0_PORT (&stm_gpioa)
+#define LED_0_PIN 5
+#define AO_LED_GREEN (1 << 0)
+#define AO_LED_PANIC AO_LED_GREEN
+
+#define HAS_SERIAL_1 0
+#define USE_SERIAL_1_STDIN 0
+#define SERIAL_1_PA9_PA10 1
+
+#define HAS_SERIAL_2 1
+#define USE_SERIAL_2_STDIN 1
+#define SERIAL_2_PA2_PA3 1
+#define SERIAL_2_SPEED AO_SERIAL_SPEED_115200
+
+#define HAS_SPI_1 1
+#define SPI_1_PA5_PA6_PA7 1
+#define SPI_1_MODE_OUTPUT STM_GPIO_CR_MODE_OUTPUT_10MHZ
+
+/* Chip Select. LCD pin 1. nucleo PA4 = A2 */
+#define AO_ST7565_CS_PORT (&stm_gpioa) /* pin 1 */
+#define AO_ST7565_CS_PIN 4
+
+/* Reset. LCD pin 2. nucleo PA0 = A0 */
+#define AO_ST7565_RESET_PORT (&stm_gpioa) /* pin 2 */
+#define AO_ST7565_RESET_PIN 0
+
+/* A0. LCD pin 3. nucleo PA1 = A1 */
+#define AO_ST7565_A0_PORT (&stm_gpioa) /* pin 3 */
+#define AO_ST7565_A0_PIN 1
+
+/* SCLK. LCD DB6 pin 12. nucleo PA5 = D13 */
+/* MOSI. LCD DB7 pin 13. nucleo PA7 = D11 */
+#define AO_ST7565_SPI_BUS (AO_SPI_1_PA5_PA6_PA7 | AO_SPI_MODE_3)
+#define AO_ST7565_WIDTH 128
+#define AO_ST7565_HEIGHT 64
+#define AO_ST7565_BIAS ST7565_LCD_BIAS_1_9