General • Re: [overclocking] RP2350 at 600 MHz, with Flash, PSRAM, ARM, RISC-V, in C and Micropython

Code:

#define QMI_COOLDOWN 30    // 0xc0000000 [31:30] COOLDOWN     (0x1) Chip select cooldown period#define QMI_PAGEBREAK 28        // 0x30000000 [29:28] PAGEBREAK    (0x0) When page break is enabled, chip select will...#define QMI_SELECT_SETUP 25        // 0x02000000 [25]    SELECT_SETUP (0) Add up to one additional system clock cycle of setup...#define QMI_SELECT_HOLD 23        // 0x01800000 [24:23] SELECT_HOLD  (0x0) Add up to three additional system clock cycles of active...#define QMI_MAX_SELECT 17        // 0x007e0000 [22:17] MAX_SELECT   (0x00) Enforce a maximum assertion duration for this window's...#define QMI_MIN_DESELECT 12        // 0x0001f000 [16:12] MIN_DESELECT (0x00) After this window's chip select is deasserted, it...#define QMI_RXDELAY 8          // 0x00000700 [10:8]  RXDELAY      (0x0) Delay the read data sample timing, in units of one half...#define QMI_CLKDIV 0           // 0x000000ff [7:0]   CLKDIV       (0x04) Clock divisor   qmi_hw->m[1].timing = (1<<QMI_COOLDOWN) | (2<<QMI_PAGEBREAK) | (3<<QMI_SELECT_HOLD) | (18<<QMI_MAX_SELECT) | (4<<QMI_MIN_DESELECT) | (6<<QMI_RXDELAY) | (6<<QMI_CLKDIV);