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Merge pull request #32 from tillitis/clear-ram

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FW: Clear all RAM during start
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Daniel Lublin 2022-10-24 11:56:16 +02:00 committed by GitHub
commit ff1bf1f326
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1 changed files with 8 additions and 0 deletions
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8
hw/application_fpga/fw/mta1_mkdf/start.S
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@ -38,6 +38,14 @@ _start:
li x30,0
li x31,0
/* Clear all RAM */
li a0, 0x40000000 // RAM base
li a1, 0x40020000 // To end of SRAM
clear:
sw zero, 0(a0)
addi a0, a0, 4
blt a0, a1, clear
/* init stack to right under where we load app at 0x40010000 */
li sp, 0x4000fff0