mirror of https://github.com/OpenIPC/wiki.git
114 lines
2.6 KiB
Markdown
114 lines
2.6 KiB
Markdown
# OpenIPC Wiki
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[Table of Content](../README.md)
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Sigmastar unbrick
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---
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**Locate the Sigmastar UART output and connect it to the Raspberry Pi I2C:**
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- TX -> SDA I2C (GPIO2)
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- RX -> SCL I2C (GPIO3)
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- GND -> GND
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---
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**Enable Raspberry I2C and install I2C tools:**
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```
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sudo raspi-config
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sudo apt-get install -y i2c-tools
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```
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**Download snander-mstar programmer:**
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```
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wget https://github.com/viktorxda/snander-mstar/releases/download/latest/snander
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chmod 755 snander
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```
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---
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**Use i2cdetect to check for the device:**
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- 0x49 -> isp programming
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- 0x59 -> serial debugging
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```
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sudo i2cdetect -y 1
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```
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**Check the device spinand with snander:**
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```
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./snander -i
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```
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**Read uboot with snander:**
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```
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./snander -a 0x2C0000 -l 0x060000 -r uboot0.bin
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```
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**Erase uboot partition:**
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```
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./snander -a 0x2C0000 -l 0x060000 -e
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```
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**Write and verify new uboot:**
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```
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./snander -a 0x2C0000 -l 0x060000 -w uboot0_new.bin -v
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```
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---
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**Partition table for spinand:**
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```
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CIS 0x0000000-0x0020000 128KB
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IPL0 0x0140000-0x0200000 768KB
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IPL_CUST0 0x0200000-0x0260000 384KB
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IPL_CUST1 0x0260000-0x02C0000 384KB
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UBOOT0 0x02C0000-0x0320000 384KB
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UBOOT1 0x0320000-0x0380000 384KB
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ENV 0x0380000-0x03C0000 256KB
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KERNEL 0x03C0000-0x08C0000 5120KB
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RECOVERY 0x08C0000-0x0DC0000 5120KB
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rootfs 0x0DC0000-0x13C0000 6144KB
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UBI 0x13C0000-0x8000000 110848KB
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```
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**Read partitions:**
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```
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./snander -a 0x000000 -l 0x020000 -r GCIS.bin
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./snander -a 0x140000 -l 0x0C0000 -r IPL.bin
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./snander -a 0x200000 -l 0x060000 -r IPL_CUST1.bin
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./snander -a 0x260000 -l 0x060000 -r IPL_CUST2.bin
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./snander -a 0x2C0000 -l 0x060000 -r UBOOT0.bin
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./snander -a 0x320000 -l 0x060000 -r UBOOT1.bin
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./snander -a 0x380000 -l 0x040000 -r ENV.bin
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```
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**Write partitions:**
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```
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./snander -a 0x000000 -l 0x020000 -e
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./snander -a 0x000000 -l 0x020000 -w GCIS.bin -v
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./snander -a 0x140000 -l 0x0C0000 -e
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./snander -a 0x140000 -l 0x0C0000 -w IPL.bin -v
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./snander -a 0x200000 -l 0x060000 -e
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./snander -a 0x200000 -l 0x060000 -w IPL_CUST1.bin -v
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./snander -a 0x260000 -l 0x060000 -e
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./snander -a 0x260000 -l 0x060000 -w IPL_CUST2.bin -v
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./snander -a 0x2C0000 -l 0x060000 -e
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./snander -a 0x2C0000 -l 0x060000 -w UBOOT0.bin -v
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./snander -a 0x320000 -l 0x060000 -e
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./snander -a 0x320000 -l 0x060000 -w UBOOT1.bin -v
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./snander -a 0x380000 -l 0x040000 -e
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./snander -a 0x380000 -l 0x040000 -w ENV.bin -v
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```
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