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December 1, 2024 22:39
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RP2350 overclocking in Micropython
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| import machine | |
| import time | |
| machine.freq(100000000) | |
| # Enable powman | |
| machine.mem32[0x40100004] = 0x5AFEA050 | |
| def set_09(): | |
| # Reduce brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0061 | |
| time.sleep_ms(100) | |
| # 0.9V | |
| machine.mem32[0x4010000c] = 0x5AFE0070 | |
| time.sleep_ms(100) | |
| machine.freq(170000000) | |
| def set_10(): | |
| # Reduce brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0071 | |
| time.sleep_ms(100) | |
| # 1.0V | |
| machine.mem32[0x4010000c] = 0x5AFE0090 | |
| time.sleep_ms(100) | |
| machine.freq(236000000) | |
| def set_11(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # 1.1V | |
| machine.mem32[0x4010000c] = 0x5AFE00b0 | |
| time.sleep_ms(100) | |
| machine.freq(276000000) | |
| def set_115(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # 1.15V | |
| machine.mem32[0x4010000c] = 0x5AFE00c0 | |
| time.sleep_ms(100) | |
| machine.freq(312000000) | |
| def set_120(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # 1.2V | |
| machine.mem32[0x4010000c] = 0x5AFE00d0 | |
| time.sleep_ms(100) | |
| machine.freq(332000000) | |
| def set_125(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # 1.25V | |
| machine.mem32[0x4010000c] = 0x5AFE00e0 | |
| time.sleep_ms(100) | |
| machine.freq(360000000) | |
| def set_130(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # 1.3V | |
| machine.mem32[0x4010000c] = 0x5AFE00f0 | |
| time.sleep_ms(100) | |
| machine.freq(384000000) | |
| def set_135(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # More forgiving flash timing | |
| machine.mem32[0x400d000c] = 0x60007304 | |
| # Unlock VREG CTRL | |
| machine.mem32[0x40100004] = 0x5AFEA150 | |
| # 1.35V | |
| machine.mem32[0x4010000c] = 0x5AFE0100 | |
| time.sleep_ms(100) | |
| machine.freq(408000000) | |
| def set_140(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # More forgiving flash timing | |
| machine.mem32[0x400d000c] = 0x60007304 | |
| # Unlock VREG CTRL | |
| machine.mem32[0x40100004] = 0x5AFEA150 | |
| # 1.4V | |
| machine.mem32[0x4010000c] = 0x5AFE0110 | |
| time.sleep_ms(100) | |
| machine.freq(424000000) | |
| def set_150(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # More forgiving flash timing | |
| machine.mem32[0x400d000c] = 0x60007304 | |
| # Unlock VREG CTRL | |
| machine.mem32[0x40100004] = 0x5AFEA150 | |
| # 1.5V | |
| machine.mem32[0x4010000c] = 0x5AFE0120 | |
| time.sleep_ms(100) | |
| machine.freq(472000000) | |
| def set_160(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # More forgiving flash timing | |
| machine.mem32[0x400d000c] = 0x60007304 | |
| # Unlock VREG CTRL | |
| machine.mem32[0x40100004] = 0x5AFEA150 | |
| # 1.6V | |
| machine.mem32[0x4010000c] = 0x5AFE0130 | |
| time.sleep_ms(100) | |
| machine.freq(500000000) | |
| def set_170(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # More forgiving flash timing | |
| machine.mem32[0x400d000c] = 0x60007304 | |
| # Unlock VREG CTRL | |
| machine.mem32[0x40100004] = 0x5AFEA150 | |
| # 1.7V | |
| machine.mem32[0x4010000c] = 0x5AFE0150 | |
| time.sleep_ms(100) | |
| machine.freq(532000000) | |
| def set_180(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # More forgiving flash timing | |
| machine.mem32[0x400d000c] = 0x60007405 | |
| # Unlock VREG CTRL | |
| machine.mem32[0x40100004] = 0x5AFEA150 | |
| # 1.8V | |
| machine.mem32[0x4010000c] = 0x5AFE0160 | |
| time.sleep_ms(100) | |
| machine.freq(564000000) | |
| def set_190(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # More forgiving flash timing | |
| machine.mem32[0x400d000c] = 0x60007405 | |
| # Unlock VREG CTRL | |
| machine.mem32[0x40100004] = 0x5AFEA150 | |
| # 1.9V | |
| machine.mem32[0x4010000c] = 0x5AFE0170 | |
| time.sleep_ms(100) | |
| machine.freq(582000000) | |
| def set_200(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # More forgiving flash timing | |
| machine.mem32[0x400d000c] = 0x60007405 | |
| # Unlock VREG CTRL | |
| machine.mem32[0x40100004] = 0x5AFEA150 | |
| # 2.0V | |
| machine.mem32[0x4010000c] = 0x5AFE0180 | |
| time.sleep_ms(100) | |
| machine.freq(600000000) | |
| def set_235(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # More forgiving flash timing | |
| machine.mem32[0x400d000c] = 0x60007505 | |
| # Unlock VREG CTRL | |
| machine.mem32[0x40100004] = 0x5AFEA150 | |
| # 2.35V (eek!) | |
| machine.mem32[0x4010000c] = 0x5AFE0190 | |
| time.sleep_ms(100) | |
| machine.freq(630000000) | |
| def set_250(): | |
| # Normal brownout | |
| machine.mem32[0x4010001c] = 0x5AFE0091 | |
| time.sleep_ms(100) | |
| # More forgiving flash timing | |
| machine.mem32[0x400d000c] = 0x60007505 | |
| # Unlock VREG CTRL | |
| machine.mem32[0x40100004] = 0x5AFEA150 | |
| # 2.5V (eek!!) | |
| machine.mem32[0x4010000c] = 0x5AFE01a0 | |
| time.sleep_ms(100) | |
| machine.freq(630000000) | |
| def seek_max_freq_lo(): | |
| for i in range(150,266,2): | |
| machine.freq(i * 1000000) | |
| time.sleep_ms(10) | |
| j = 1 | |
| for k in range(1,100): | |
| j *= k | |
| assert j == 933262154439441526816992388562667004907159682643816214685929638952175999932299156089414639761565182862536979208272237582511852109168640000000000000000000000 | |
| print(f"OK at {i}MHz") | |
| def seek_max_freq_mid(): | |
| for i in range(264,532,4): | |
| machine.freq(i * 1000000) | |
| time.sleep_ms(10) | |
| j = 1 | |
| for k in range(1,100): | |
| j *= k | |
| assert j == 933262154439441526816992388562667004907159682643816214685929638952175999932299156089414639761565182862536979208272237582511852109168640000000000000000000000 | |
| print(f"OK at {i}MHz") | |
| def seek_max_freq_hi(): | |
| for i in range(528,700,6): | |
| machine.freq(i * 1000000) | |
| time.sleep_ms(10) | |
| j = 1 | |
| for k in range(1,100): | |
| j *= k | |
| assert j == 933262154439441526816992388562667004907159682643816214685929638952175999932299156089414639761565182862536979208272237582511852109168640000000000000000000000 | |
| print(f"OK at {i}MHz") | |
| def seek_max_freq_and_check_glitch(): | |
| machine.mem32[0x40158008] = 0xde001be4 | |
| for i in range(120,300,4): | |
| machine.mem32[0x40158010] = 0xf | |
| machine.freq(i * 1000000) | |
| time.sleep_ms(10) | |
| j = 1 | |
| for k in range(1,100): | |
| j *= k | |
| assert j == 933262154439441526816992388562667004907159682643816214685929638952175999932299156089414639761565182862536979208272237582511852109168640000000000000000000000 | |
| print(f"OK at {i}MHz") | |
| glitch = machine.mem32[0x40158010] | |
| if glitch != 0: | |
| print(f"Glitch {glitch:08x}") |
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