Finsh 里进行Pin操作 报错：Parameter invalid :PA.16!

/**
 * @brief Get Pin index from name
 *
 * Name rule is : <GPIO NAME><Index>
 *  for example: PA00, PZ03
 *
 **/
static rt_base_t hpm_pin_get(const char *name)
{
    if (!(  (rt_strlen(name) == 4) &&
            (name[0] == 'P') &&
            ((('A' <= name[1]) && (name[1] <= 'F')) || (('V' <= name[1]) && (name[1] <= 'Z'))) &&
            (('0' <= name[2]) && (name[2] <= '9')) &&
            (('0' <= name[3]) && (name[3] <= '9'))
        ))
    {
        return -RT_EINVAL;
    }
    uint32_t gpio_idx = (name[1] <= 'F') ? (name[1] - 'A') : (11 + name[1] - 'V');
    uint32_t pin_idx = (uint32_t)(name[2] - '0') * 10 + (name[3] - '0');
    return (gpio_idx * 32 + pin_idx);
}