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Showing results for tags 'u-boot'.
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Hi. I want to use an OV9281 camera on my tinkerboard s r2.0. As I searched for it I found out that debian OS from asus webpage does not include OV9281's driver. AI suggested me to build a custom kernel. So I started to build a u-boot initially. Though I am not experienced I managed to built a u-boot but now I need some help to install it on an sd card ? Is there a script which when I give the u-boot.img it flashes the SD card ? Or can someone give me some insight about the procedure: how many partitions do I need, sizes of them , where to flash u-boot.img ? And one extra question: For the time being I just want to see some u-boot messages appear on display, do I have to build and install a kernel and a filesystem for this ?
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The following settings were made to save the u-boot env to eMMC. U-Boot 2022.01 CONFIG_ENV_IS_IN_MMC=y CONFIG_SYS_MMC_ENV_DEV=0 CONFIG_SYS_MMC_ENV_PART=0 The write operation succeeds once, but then the eMMC stops responding. Writing by ums is also successful, so writing itself seems to be OK, but there seems to be a problem in the subsequent operation. What are the problems with writing to eMMC?
