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| author | Jacques Comeaux <jacquesrcomeaux@protonmail.com> | 2024-05-20 23:19:14 -0500 |
|---|---|---|
| committer | Jacques Comeaux <jacquesrcomeaux@protonmail.com> | 2024-05-20 23:19:14 -0500 |
| commit | 7388c270069c2d1418539bca1d2789a6d468ecc2 (patch) | |
| tree | d3848031f6c2d4d45ec0a7c75b12a9f476680726 /hexedit/xosc.s | |
| parent | 7f47fc894d43739fb0107fd17e76f65ae2bf46bc (diff) | |
Make shared object for setup routines
Diffstat (limited to 'hexedit/xosc.s')
| -rw-r--r-- | hexedit/xosc.s | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/hexedit/xosc.s b/hexedit/xosc.s deleted file mode 100644 index 63760da..0000000 --- a/hexedit/xosc.s +++ /dev/null @@ -1,23 +0,0 @@ -.syntax unified -.cpu cortex-m0plus -.thumb - -.equ XOSC_BASE, 0x40024000 -.equ CTRL_OFST, 0x0 -.equ STATUS_OFST, 0x4 -.equ STARTUP_OFST, 0xc - -.type start_xosc, %function -.global start_xosc - -start_xosc: - ldr r1, =XOSC_BASE - movs r0, 47 // startup delay for 12Mhz crystal - str r0, [r1, STARTUP_OFST] - ldr r0, =0x00fabaa0 // enable - str r0, [r1, CTRL_OFST] -1: - ldr r0, [r1, STATUS_OFST] - lsrs r0, 31 // stable bit - beq 1b - bx lr |