| Line 178... |
Line 178... |
neorv32_uart_printf("Select new clock prescaler (0..7): ");
|
neorv32_uart_printf("Select new clock prescaler (0..7): ");
|
neorv32_uart_scan(terminal_buffer, 2, 1); // 1 hex char plus '\0'
|
neorv32_uart_scan(terminal_buffer, 2, 1); // 1 hex char plus '\0'
|
uint8_t prsc = (uint8_t)hexstr_to_uint(terminal_buffer, strlen(terminal_buffer));
|
uint8_t prsc = (uint8_t)hexstr_to_uint(terminal_buffer, strlen(terminal_buffer));
|
|
|
if ((prsc >= 0) && (prsc < 8)) { // valid?
|
if ((prsc >= 0) && (prsc < 8)) { // valid?
|
TWI_CT = 0; // reset
|
NEORV32_TWI.CTRL = 0; // reset
|
TWI_CT = (1 << TWI_CT_EN) | (prsc << TWI_CT_PRSC0);
|
NEORV32_TWI.CTRL = (1 << TWI_CTRL_EN) | (prsc << TWI_CTRL_PRSC0);
|
neorv32_uart_printf("\nDone.\n");
|
neorv32_uart_printf("\nDone.\n");
|
}
|
}
|
else {
|
else {
|
neorv32_uart_printf("\nInvalid selection!\n");
|
neorv32_uart_printf("\nInvalid selection!\n");
|
return;
|
return;
|
| Line 200... |
Line 200... |
case 5: div = 4 * 1024; break;
|
case 5: div = 4 * 1024; break;
|
case 6: div = 4 * 2048; break;
|
case 6: div = 4 * 2048; break;
|
case 7: div = 4 * 4096; break;
|
case 7: div = 4 * 4096; break;
|
default: div = 0; break;
|
default: div = 0; break;
|
}
|
}
|
uint32_t clock = SYSINFO_CLK / div;
|
uint32_t clock = NEORV32_SYSINFO.CLK / div;
|
neorv32_uart_printf("New I2C clock: %u Hz\n", clock);
|
neorv32_uart_printf("New I2C clock: %u Hz\n", clock);
|
}
|
}
|
|
|
|
|
/**********************************************************************//**
|
/**********************************************************************//**
|
